ALERTON VLC8u8-IP Unitary Controller Installation Guide

Installation Guide for ALERTON models including: 2025, 2025, VLC8u8-IP Unitary Controller, VLC8u8-IP, Unitary Controller, Controller

Alerton Unitary Controller Installation and Operations Guide (English)

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Alerton Unitary Controller Installation and Operations Guide (English)

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Unitary Controller
General ......................................................................................... 2 Trademark Information.............................................................. 2 Product Description................................................................... 2 Controller Part Numbers ........................................................... 3 Dimension ................................................................................. 3
Network Security ......................................................................... 5 General Safety Information and Installation Precaution............ 5 Read all the instructions below ................................................. 5 High Voltage safety test ............................................................ 5 Lightning and high-voltage danger............................................ 5 Wiring and equipment separations ........................................... 5
Specifications .............................................................................. 6 Hardware .................................................................................. 6 Electrical ................................................................................... 6 Supported Devices.................................................................... 6 Operational Environment .......................................................... 7 SPDT Relays ............................................................................ 7 Solid State Relay ...................................................................... 7 Wire Gauge............................................................................... 7 Universal IO .............................................................................. 8 Communication ......................................................................... 8 IP T1L Communication.............................................................. 8 IP T1L Cable Specifications ...................................................... 9
Hardware Overview ..................................................................... 10 Unitary Controllers Model ......................................................... 10 System Overview ...................................................................... 11 Service Button........................................................................... 12 Mounting ................................................................................... 12 DIN Rail Mounting..................................................................... 12 Wall Mounting ........................................................................... 13
Power Supply ............................................................................... 14 General Information .................................................................. 14 Power Wiring............................................................................. 14 Power Wiring Examples............................................................ 15 Selecting a power supply wire .................................................. 17
Input / Output Wiring ................................................................... 18 Wiring Requirements ................................................................ 18 Internal Wiring Examples .......................................................... 19 Internal Wiring Small Controller ................................................ 20 Identifying terminals and terminal wire...................................... 21
Terminal Connections ................................................................. 23 UIO Wiring Examples................................................................ 26 SSR (DO) Wiring Examples ...................................................... 27 Auxiliary Wiring Examples........................................................ 28 SPDT Relay Wiring Examples .................................................. 28
Microset Bus ................................................................................ 29 Microtouch ................................................................................ 29 Microset II ................................................................................. 29 Microset 4 ................................................................................. 29 Wire shields and shield grounding ............................................ 30 Microset II/ Microset 4 / Microtouch Wiring Examples .............. 30
LED Operations............................................................................ 34 Controller Status LED ............................................................... 34 Modbus LED Status .................................................................. 35 IP T1L LED Status .................................................................... 35 Service Pin LED Status............................................................. 35

INSTALLATION AND OPERATIONS GUIDE
Unitary Controllers Configuration .............................................. 36 Compass Device Configuration................................................. 36 Recovering from a Misconfiguration.......................................... 36 Initial Screen ............................................................................. 36 Ethernet and IP ......................................................................... 37 BACnet Configuration ............................................................... 38 BACnet Point Objects ............................................................... 40 BACnet Network Configuration ................................................. 41 BACnet Compatibility ................................................................ 45 Time Synchronization Configuration ......................................... 46 UTC Offset, Daylight saving, Latitude, Longitude ..................... 47 Modbus ..................................................................................... 48 Syslog ....................................................................................... 54 BLE Settings ............................................................................. 56 Configuring all Inputs and Outputs (Templates) ........................ 59 Inputs ........................................................................................ 63 Outputs...................................................................................... 70
Network topologies...................................................................... 74 Daisy Chain topology ................................................................ 74 Ring network topology............................................................... 75
RSTP.............................................................................................. 76 Introduction ............................................................................... 76 RSTP Scenario.......................................................................... 77 Port Roles ................................................................................. 78 RSTP Configuration .................................................................. 79 RSTP Diagnostics ..................................................................... 80 Troubleshooting RSTP .............................................................. 81 Tested Network Switches .......................................................... 81
Objects and Property References .............................................. 82 Objects in the VLC8u8 Unitary Controllers................................ 82 Objects in the VLC16u8 Unitary Controllers.............................. 84 Properties of VLC AI Objects .................................................... 86 Properties of VLC AO Objects................................................... 86 Properties of VLC AV Objects ................................................... 88 Properties of Microset VLC AV Objects..................................... 89 Properties of VLC BI Objects .................................................... 90 Properties of VLC BO Objects................................................... 91 Properties of VLC BV Objects ................................................... 92 Properties of Microset VLC BV Objects .................................... 93 Properties of the VLC Device Objects....................................... 93 Properties of VLC Event - Enrollment Objects .......................... 95 Properties of VLC File Objects.................................................. 95 Properties of VLC Notification-Class Objects............................ 96 Properties of VLC Program Objects.......................................... 97 Properties of VLC Scheduled Objects....................................... 97 Properties of VLC Trendlog Objects.......................................... 98 Properties of VLC Zone Objects................................................ 99
Diagnostic AVs and BVs.............................................................. 102 Regulatory Information................................................................ 107
FCC Regulation......................................................................... 107 Canadian Regulatory Statement ............................................... 107 CE Statement ............................................................................ 107 Wireless Connectivity ................................................................ 107 Standards and Compliance....................................................... 108 Approvals and Certifications...................................................... 108 WEEE Directive 2012/19/EC Waste Electrical and Electronic Equipment directive................................................................... 108 Abbreviations ............................................................................... 110 Related Technical Literature ....................................................... 110

Alerton Unitary Controller - Installation and Operations Guide

GENERAL
Trademark Information
BACnet® is a registered trademark of ASHRAE Inc.
All information in this document is provided without warranty of any kind. Honeywell reserves the right to change any information herein without prior notice. No guarantees are given as to the accuracy of information. Trademarks and trade names may be used in the document to refer to the entities claiming their products' marks and names. Alerton, BACtalk, and their logos are registered as trademarks of Honeywell. Honeywell disclaims any proprietary interest in trademarks and trade names other than its own.

Product Description
Alerton VisualLogic® Unitary controllers provide flexible, freely programmable, demand-led control that delivers tangible benefits to reduce energy spending while driving new levels of functionality and efficiency in today's buildings.
These new controllers offer BACnet® IP through IP CAT5/6 or IP T1L network connectivity along with Microset Bus and Modbus RTU as embedded integration protocols, flexible Universal Input/Output (UIOs), Power Relays (SPDT), and solid-state relays (SSRs).
They offer performance-based engineering via Alerton's VisualLogic® programming tool. The optional integrated Bluetooth® Low Energy (BLE) capability enables an easy pairing with the Connect Mobile app for efficient wiring validation.

Table 1 Part Numbers

Part Number

Housing

VLC8u8-IP

Small

VLC8u8-IP-BLE Small

VLC8u8-T1L

Small

VLC8u8-T1L-BLE Small

VLC16u8-IP

Large

VLC16u8-IP-BLE Large

VLC16u8-T1L

Large

VLC16u8-T1L-BLE Large

Universal IO
8 8 8 8 16 16 16 16

Solid State Relay (SSR) 4 4 4 4 4 4 4 4

SPDT Relay 4 4 4 4 4 4 4 4

Communication
BACnet® IP (CAT5/6) BACnet® IP (CAT5/6) BACnet® IP (T1L) BACnet® IP (T1L) BACnet® IP (CAT5/6) BACnet® IP (CAT5/6) BACnet® IP (T1L) BACnet® IP (T1L)

MSET Bus Yes

Bluetooth No

Yes

NOTE:
CAT5 cables are used primarily because they offer a connection speed of 100 Mbps while CAT6 cables support up to 10 Gbps. The network infrastructure is designed for 100 Mbps, therefore CAT6's higher capacity would not be fully utilized in the current setup.

Part Number CW-COV-L-UNITARY CW-COV-S-UNITARY SCRW-TB-UNI-L IO-JUMPER-4-10
10BASE-T1L-ADAPT-0

Table 2 Accessories / Replacement Part Description Terminal cover for the Large Unitary Controllers (sold in pack of 10) Terminal cover for the Small Unitary Controllers (sold in pack of 10) Set of removable terminal blocks covering all models of Unitary Controllers 4-pin relay output Jumper Bar to connect 4 relays IN terminals (sold in pack of 10) BACnet® IP (T1L) single pair media adapter that allows converting 10BASE-T traffic to 10BASE-T1L without including power supply.

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Controller Part Numbers

Alerton Unitary Controller - Installation and Operations Guide VLC 16u 8 - IP - BLE

Dimension

UNITARY CONTROLLER
UNIVERSAL I/O 16 - LARGE HOUSING 8 - SMALL HOUSING
BINARY OUTPUT 4 - SPDT RELAY 4 - SOLID STATE RELAY

BLUETOOTH BLE - BLUETOOTH
BACKBONE COMMUNICATION IP - BACnet® IP (CAT5/6) T1L - BACnet® IP (T1L)

Fig. 1 Controller Part Numbers

0.4 inches (9.6 mm)

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

1 RS485

32 33 34 35 36 37 38

32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

24VDC OUT

4.8 inches (121.6 mm)

4.5 inches (115.6 mm)

4.6 inches (116.8 mm)

5.1 inches (131.1 mm)

1.8 inches (45.1 mm)

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

RS485 1

PWR OUT MSET UIO

AUX

24VDC

+ - COM OUT V MSET C IO1 C IO2 IO3 C IO4 IO5 C IO6 IO7 C IO8 C OUT IO9 C IO1 IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

6.3 inches (160.0 mm)
8.5 inches (216.0 mm)

1.1 inches (28.0 mm)

Fig. 2 Alerton Unitary Controller (Large Housing) Dimensions

2.4 inches (60.9 mm)

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Alerton Unitary Controller - Installation and Operations Guide

0.4 inches (9.6 mm)

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

4.6 inches 4.8 inches

(116.8 mm) (121.6 mm)

RS485

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

RS485 1

PWR OUT MSET UIO

AUX

+ - COM OUT V MSET C IO1 C IO2 IO3 C IO4 IO5 C IO6 IO7 C IO8 C

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

4.5 inches (115.6 mm)

5.1 inches (131.1 mm)

1.8 inches (45.1 mm)

4.3 inches (110.0 mm)
7.1 inches (180.0 mm)

1.4 inches (35.0 mm)

2.4 inches (60.9 mm)

Fig. 3 Alerton Unitary Controller (Small Housing) Dimensions

All dimensions are in inches (mm).

Table 3 Dimension

Parameter

Specifications

Large - 8.5 x 4.8 x 2.4 inches (216.0 x 121.6 x 60.9 mm) Dimension (L x W x H)
Small - 7.1 x 4.8 x 2.4 inches (180.0 x 121.6 x 60.9 mm)

Weight

Large - 1.278 lbs. (580 g) Small - 1.102 lbs. (500 g)

Mounting

Mounting in fuse boxes (DIN43880), on DIN rails or surface mounted with optional protection covers.

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Alerton Unitary Controller - Installation and Operations Guide
NETWORK SECURITY
WARNING
Alerton hereby states that the Unitary Controllers are not inherently protected against all cyber security risks from the Internet and are thus intended solely for use in private or protected networks.
Unprotected Internet connections can expose the Alerton Unitary Controllers to cyber security risks.
To ensure a safe and reliable operation, take necessary protective measures, such as locating BMS controls behind a firewall and using a VPN connection for remote maintenance. Numerous third-party manufacturers offer suitable VPN routers. For more details, refer Alerton Unitary Controller - Security Guide 31-00529.
General Safety Information and Installation Precaution
Follow the safety instructions provided by Alerton in this manual while doing any operation such as installation, mounting, or starting.
· The controllers must be installed and mounted by authorized and trained personnel. · Except for Alerton, the operation and safety warranties become void in case of any modification. · Observe all applicable local standards and regulations. · Use only Alerton supplied or approved accessories. · Before installing or dismantling the system, disconnect the power supply by removing the power terminal block from the
controller or through local isolation.
CACUATIOUNTION
You must disconnect the power before installing, removing, or replacing the Alerton Unitary Controller. Switch off the power before you install any jumpers.
Read all the instructions below
Follow all instructions to avoid equipment damage or hazardous condition. Read all instructions carefully before installing equipment.
High Voltage safety test
Experienced electricians, at first contact, always assume that hazardous voltages may exist in any wiring system. A safety check using a known, reliable voltage measurement or detection device should be made immediately before starting work and when work resumes.
Lightning and high-voltage danger
Most electrical injuries involving low-voltage wiring result from sudden, unexpected high voltages on normally low-voltage wiring. Low voltage wiring can carry hazardous high voltages under unsafe conditions. Never install or connect wiring or equipment during electrical storms. Improperly protected wiring can carry a fatal lightning surge for many miles. All outdoor wiring must be equipped with properly grounded and listed signal circuit protectors, which must be installed in compliance with local, applicable codes. Never install wiring or equipment while standing in water.
Wiring and equipment separations
All wiring and controllers must be installed to minimize the possibility of accidental contact with other potentially hazardous and disruptive power and lighting wiring. Never place 24 VAC or communications wiring near other bare power wires, lightning rods, antennas, transformers, or steam or hot water pipes. Never place the wire in any conduit, box, channel, duct, or other enclosure containing power or lighting circuits of any type. Always provide adequate separation of communications and another electrical wiring according to code. Keep wiring and controllers at least six feet from large inductive loads (power distribution panels, lighting ballasts, motors, etc.)

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Alerton Unitary Controller - Installation and Operations Guide

SPECIFICATIONS

Hardware

Table 4 Hardware Specification

Parameter Specification

CPU

Crossover processor NXP I.MRT, Cortex M7

Memory Capacity

64 MB QSPI Flash, 16 MB SDRAM

IP CAT5/6 1)

2 x RJ-45 ports, 10/100 Mbps with a protection that allows loop topology to continue the communication with other controllers even if one node fails, when used with an RSTP supporting device.

IP T1L 2)

2 x T1L ports with fail-safe, up to 10 Mbps with a protection that allows loop (when used with an RSTP supporting device) and daisy-chain topology to continue the communication with other controllers even if one node fails.

Real Time Clock

24 hours backup after power failure. After 24 hours, the time will reset to factory default time until the user performs time sync via BACnet® or Network Time Protocol (NTP)

Small LED

Transmission or reception of IP T1L/Modbus/Bluetooth signal (green) and service pin status.

Large LED Controller status (green, yellow, and red).

NOTE: 1) applicable for IP CAT5/6 variant only. 2) applicable for IP T1L variant only.

Electrical

Table 5 Electrical Specifications

Parameter

Specification

Rated Input Voltage

20 - 30 VAC / 24 - 30 VDC

Nominal Power Consumption

· BACnet® IP CAT5/6 (VLC8u8-IP-BLE): 12 VA
· BACnet® IP CAT5/6 (VLC16u8-IP-BLE): 15 VA
· BACnet® IP T1L (VLC8u8-T1L-BLE):
10 VA · BACnet® IP T1L
(VLC16u8-T1L-BLE):
12 VA

Table 5 Electrical Specifications

Full Load Power Consumption (Communication, Bluetooth, Universal IO, and 24 VDC, excluding the load on the SSRs and Relays). NOTE: For the current consumption of SSR, refer SSR section table below.

· BACnet® IP CAT5/6 (VLC8u8-IP-BLE): 40 VA
· BACnet® IP CAT5/6 (VLC16u8-IP-BLE): 62 VA
· BACnet® IP T1L (VLC8u8-T1L-BLE):
40 VA · BACnet® IP T1L
(VLC16u8-T1L-BLE):
58 VA

Frequency Range

50 - 60 Hz

Auxilary Power Output for 24 VDC (3 for large and 1 for small controller)

3 x 24 VDC at 75 mA each 1 x 24 VDC at 75 mA

Auxilary Power Output for 24 VAC/VDC (Pin 48,49)

1 x 24 VAC/VDC at 300 mA

Impulse Voltage

330 VAC

Type Of Loads

Resistive or inductive loads

Material Group

IIIb

Classes Of Control Function

Class A control

Type of Output Waveform Sine wave or DC voltage

Supported Devices

Table 6 Supported devices

Parameter Specification

Microset Wall Modules

Microset 4: MS4-TH, MS4-TH-NL, MS4-THC Microset II: MS-2000-BT, MS-2000-BT-NL, MS-2000H-BT

Microtouch Wall Modules

TS-1050-BT, TS-1050-BT-NL

Modbus Devices

Modbus RTU devices from any manufacturer including Honeywell Modbus devices, for example DALI64MODPSUF/S, TR100, TR50, and TC300 can be used.

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Alerton Unitary Controller - Installation and Operations Guide

Operational Environment

Table 7 Operational Environment

Parameter

Specification

Storage Temperature

-40 °F to 150 °F (-40 °C to 66 °C)

Operating Temperature

-40 °F to 122 °F (-40 °C to 50 °C)

Humidity

5 % to 95 % non-condensing

Protection

IP20, NEMA 1

Pollution Level 2

SPDT Relays

Table 8 SPDT Relays

Parameter Specification

Contact Rating

Up to 277 VAC / 230 VAC (+20 %) 3 contacts per relay (normally open (NO), normally closed (NC), common (IN)). 10 A constant current on normally open (NO) contact and 100 A inrush for 100 ms Total current across all relays is limited to 10 A if all commons are connected via a relay jumper.

Motor Load Rating: 120 VAC, 1 HP (10 FLA), 240 VAC, 2 HP (10 FLA), 277 VAC, 3/4 HP (6.9 FLA).

General Purpose Rating: 120 VAC @10 A, 240/277 VAC @10 A.

Output

40000 cycles for contact A (NO) 6000 cycles for contact C (CO)

Number of Automatic Cycles

40000 cycles for contact A (NO) 6000 cycles for contact C (CO)

Type of disconnection or interruption provided by each circuit. Relay outputs can be used as dry contact output. Type 1.C, also known as Form C or SPDT (Single Pole Double Throw).

Solid State Relay
Table 9 Solid State Relay Specification Specification SSR works with maximum 24 VAC / VDC. 1.5 A constant current accross all 4 outputs; 3.5 A inrush for 0.1 seconds per SSR output. Factory installed jumper (pin 7 to 14) between 24 VAC or 24 VDC supply and SSR input shared by all SSRs. The fuse should be 5 A, for example, 0AGC005.V, OAGW005.VP or BK/AGW-5, and the fuse folder, for example, 150603 or BK/HRK-R.

Wire Gauge

Parameter

Table 10 Wire Gauge Specification

Power Input

12 - 14 AWG

SSR Output and SRIN

22 - 18 AWG

Relay

18 - 14 AWG

IP T1L

18 - 23 AWG, Twisted Pair, Shielded Al-Foil and Cubraid tinned

Note: 1. For more details about wiring,
refer Selecting a power supply wire on page 17 2. For more details about IP T1L Cable Specifications
refer IP T1L Cable Specifications on page 9

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Alerton Unitary Controller - Installation and Operations Guide

Universal IO

Table 11 Universal IO Specification

Parameter Specification

· 16-bit universal inputs accept 10 k

thermistor (type II and III), dry contact,

1k platinum RTD, 0-20 mA, 0-10 V, or

dry-contact pulse. Pulse input

maximum frequency of 100 Hz. Pulse

input minimum duty cycle 5 ms ON / 5

ms OFF. · Sensors: 10K Ohm NTC Type II, 10K

Ohm NTC Type III, PT1000, 100 Ohm

to 100K Ohm resistive (custom

characteristic).

· Dry contact binary input.

· Pulse input with maximum frequency

100 Hz, minimum pulse width 5 ms.

· Voltage output with 0-10 VDC

· Current output with 0-20 mA.

· 16-bit analog output.

0...11 VDC at 20 mA binary output with direct/reverse.

NOTE: Some 4-20 mA input sensors may need an external resistor to function properly. Please refer to the sensor's documentation.

Communication

Table 12 Communication Specification

Parameter Specification

Protocol Supported

· BACnet®/Ethernet, BACnet®/IPv4, BACnet®/IPv6
· Modbus RTU (Master) · Rapid Spanning Tree Protocol
(RSTP) · Network Time Protocol (NTPv4) · Bluetooth (Optional)

IP Addressing Modes

· Dynamic: Full duplex (IPv4 and IPv6) addressing, DHCP, SLAAC, Link-Local addressing.
· Static: Assigned

IP T1L Communication

Table 13 IP T1L Communication Specification

Parameter

Specification

10 BASE-T1L Standard

802.3cg-2019

Connection

Screw terminal, auto MDI-X

Cable Types Distance

Single twisted pair, 18 AWG, shielded or unshielded. Belden 74040 NH, 9841 NH or equivalent. Maximum distance between controllers support upto 3281 ft. (1000 m) based on cables characteristics. For more details about cable type and characteristics refer to the IP T1L Network Specification Guide.

Transmission Rate

10 Mbps

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Alerton Unitary Controller - Installation and Operations Guide

IP T1L Cable Specifications
Table 14 IP T1L Cable Specifications

Cable

Typical Uses

74040NH Belden 2)

IP T1L- Long distance harsh environments

8471 Belden 2)

LON

9841 Belden 2) IP TP/1/1/24/200/HF- 600V

MS/TP (Serial)

8723NH Belden 2) 3) IP TP/2/2/22/200/HF- 600V

Trend 4 wire LAN

8761NH Belden 2) IP TP/1/1/22/200/HF- 600V

Trend 2 wire LAN

Cable Characteristics

Maximum disctance (between working nodes)

2 cores solid 18 AWG,SF/UTP Shielded and foil, unshielded twisted pair. 2 cores stranded/tinned 16 AWG, unshielded cable.

1000 m 560 m

2 cores stranded/tinned 24 AWG, Foil shield & drain wire, twisted pair.

400 m

4 cores, 2 pairs, stranded/tinned, 22 AWG, Foil shield & drain wire, twisted 200 m pairs.

2 cores stranded/tinned, 22 AWG, Foil shield & drain wire, twisted pairs.

320 m

5501UE 0081000 Belden/BAV 82836 Helukabel 1)
3076F Belden 1)
Helukabel J-Y(ST)YLG 1)
Cat5/Cat6

Security, speaker, PA, & telephone systems Profibus - Industrial Ethernet Harsh environment digital and serial two-way communication Telecommunications & Fire Alarm Cable (Fire Warning Cable) Standard wired IT network cable

3 cores stranded bare copper, 22 AWG, no shield or twist. 2 cores solid, 18 AWG Foil + braded screen twisted pair.

600 m 800 m

2 cores solid 18 AWG, Shielded and foil, unshielded twisted pairs.

428 m

Multicore solid bare copper, 20 AWG (0.8 mm), foil wrapped. 8 core, 4 pairs, solid bare copper, 23 AWG, twisted pairs.

320 m 720 m

Depending on the cable type and assuming the distance between functional nodes does not exceed the maximum stated above, the maximum number of offline IP T1L devices on the bus varies between 2 and 10 for daisy-chaining to remain functional.
1) Testing source - Analog Devices standard IP T1L cable testing.
2) Testing source - Analog Devices & Honeywell device testing.
3) Do not combine pairs as this impacts performance.

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Alerton Unitary Controller - Installation and Operations Guide

HARDWARE OVERVIEW

Unitary Controllers Model
BACnet® IP CAT5/6 Model

24 VAC/VDC Power Supply Relays (4x)

Solid State Relays (4x)

Relay Output Jumper

Universal Inputs/Outputs (4x)

RJ45 Ethernet 1 RJ45 Ethernet 2
BACnet® IP T1L Model

Service Button

T1L Port 1 T1L Port 2

Universal Inputs/Outputs (4x) Auxiliary Power for Field Devices 24 VDC Universal Inputs/Outputs (12x) Microset 24 VAC/VDC Auxiliary Power Output RS-485 Modbus/RTU
Fig. 4 Unitary Controllers (Large) Overview

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System Overview

Alerton Unitary Controller - Installation and Operations Guide

Compass Supervisor 2.2.3
Ethernet Switch BACnet® IP

Legend BACnet® IP CAT5/6 Modbus RTU Microset Bus BACnet® IP T1L
T1L Media Adapter

BACnet® IP CAT5/6

BACnet® IP T1L

BACnet® IP CAT5/6 Unitary controller

BACnet® IP T1L Unitary controller

Modbus RTU

Microset Bus

IAQ Sensor, Sensor, Energy Meter, and VFD

CO2 I/O kWh
Wall Module for HVAC, CO2 sensor, Occupancy

Microset 4

HVAC, SMART ROOM CONTROL AND ENERGY METERING*

Fig. 5. Alerton Unitary Controllers System Overview *Devices subject to local availability, Contact your local sales representative for information on available device on your region.

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Alerton Unitary Controller - Installation and Operations Guide

Service Button
Fig. 4 shows the hardware overview with the location of the service button, The service button is used to trigger dedicated events. It is important to distinguish different controller behaviors elicited depending on whether the service button is pressed when the controller is powering up or in normal operation.
See the following dedicated events:
To factory reset the controller, user must follow the below steps:
· Power-cycle the controller and simultaneously press the service button for 5 seconds until yellow status LED flashes twice.
· The device will erase each file stored in the controller. The time it takes to erase depends upon the amount of data stored in the controller, it can go from 15 to 90 seconds. During this period the status LED stays off. · The application is cleared from the controller.
· The device instance will revert to its default 4194303
· The device name will revert to default. e.g: (1) For Unitary Controller IP CAT5/6 small variant with BLE, device name will revert to VLC8u8-IP-BLE. (2) For Unitary Controller IP T1L large variant without BLE, device name will revert to VLC16u8-T1L.
· The Ethernet, BACnet IPv4, and BACnet IPv6 settings will revert to their factory settings. The IP address will be reset to default 192.168.1.200 BACnet over Ethernet communication enabled.
· Status LED will flash yellow twice indicating that the factory reset has finished.
· Device will reboot.
NOTE:
Before performing a factory reset, user must remove the Device entry from The Compass Device Manager. If user fails to do, the device may reset, but it will change the default device instance from 4194303 to the actual instance in the Device Manager.
NOTE:
Pressing Service Button during normal operation will not result in any action. This feature is reserved for future use.

Mounting
Before Installation
IMPORTANT: It is recommended that the unit be kept at room temperature for at least 24 hours before applying power. This is to allow the evaporation of any condensation resulting from low shipping / storage temperatures.
NOTE: Avoid mounting in areas where acid fumes or other corrosive vapors can harm the metal parts of the controller or in areas where escaping gas or other explosive vapors are present.
IMPORTANT: US requirement, only: This device must be installed in a UL-listed enclosure offering adequate space to maintain the segregation of the line voltage field wiring and Class 2 field wiring.
CACUATIOUNTION
To avoid electrical shock or equipment damage, you must switch OFF the power supply before attaching or removing connections to or from any terminals.
DIN Rail Mounting
1. Mount the DIN rail on the wall/surface by using screws.
DIN Rail

Screw

Wall/Surface

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Alerton Unitary Controller - Installation and Operations Guide

2. Extend all red mounting clips to the unlock position as shown in figure 7.
Red Clip
DIN Rail Lock Position

Wall Mounting
1. Extend all red clips to the screw mounting position by inserting the flat blade screwdriver at a marked location and move up the nod from the lower slot to the upper slot as shown in figure 9.
Red Clip

3. Remove the controller from the wall and drill four holes at the marked locations.

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

24VDC OUT

24VDC C OUT IO9 C IO1 IO11 C IO12 64 65 66 67 68 69 7 71 72
64 65 66 67 68 69 7 71 72
4. Insert anchors into the four mounting screw holes. 5. Place the controller on the wall/panel so that the holes
are aligned. Insert the screws into the topside holes first and fasten them with a screwdriver 6. Insert the screws into the bottom hole and fasten them with a screwdriver.
NOTE: It is recommended to use the 6/18 1-inch pan head Phillips tapping screws.

Screw Mounting
Position
2. Hold the controller along the wall and mark drilling locations through the screw red clip slots, as shown in figure 10. Drill mark location
3. Remove the controller from the wall and drill four holes at the marked locations.

Large: 6.3 inches (160 mm) Small: 4.5 inches (110 mm)

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1

PWR OUT MSET UIO

COM

AUX OUT

MSET /C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

24VDC OUT

4.8 inches (121.6 mm)

4. Insert anchors into the four mounting screw holes. 5. Place the controller on the wall/panel so that the holes
are aligned. Insert the screws into the topside holes first and fasten them with a screwdriver. 6. Insert the screws into the bottom hole and fasten them with a screwdriver.

NOTE:
It is recommended to use the 6/18 1-inch pan head Phillips tapping screws.

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Alerton Unitary Controller - Installation and Operations Guide

POWER SUPPLY
General Information
To prevent a risk of injury due to electrical shock and/or damage to the device due to short-circuiting, low voltage and high-voltage lines must be kept physically separate. To prevent a risk of short-circuiting and damage to your Unitary Controllers, do not reverse the polarity of the power connection cables and avoid ground loops (connecting one field device to several controllers).
Before wiring the controller, determine the input and output device requirements for each controller used in the system. Select input and output devices compatible with the controller and the application. Consider the operating range, wiring requirements, and environmental conditions while selecting input and output devices.
Determine the location of controllers, sensors, actuators, other input, and output devices, and create wiring diagrams for illustrations of typical controller wiring for various configurations.
The application engineer must review the control job requirements. This includes the sequence of operation for the controller and the system as a whole. Usually, some variables must be passed between the controllers that are required for optimum system-wide operation. Typical examples are the TOD, occupied, unoccupied, outdoor air temperature, and demand limit control signal. Understanding these interrelationships early in the job engineering process is vital for proper implementation while configuring the controllers.
NOTE:
All wiring must comply with applicable electrical codes and ordinances. Refer to the job or manufacturers' drawings for details. Local wiring guidelines (for example, IEC 364-6-61 or VDE 0100) may take precedence over recommendations provide in these installation instructions. To comply with CE requirements, devices having a voltage of 50-1000 VAC or 75-1500 VDC, but lacking a supply cord, plug, or other means for disconnecting from the power supply must have the means of disconnect incorporated in the fixed wiring. This type of disconnect must have a contact separation of at least 1/8 in. (3 mm) at all poles.

Power Wiring
All wiring must comply with applicable electrical codes and ordinances as specified on installation wiring diagrams. Controller wiring is terminated to the screw terminal blocks located on the device.
NOTE: A single transformer can power more than one controller. The same side of the transformer secondary must be connected to the same power input terminal on each controller. Fig. 6 shows the power wiring details for multiple controllers. Controller and configuration are not necessarily limited to three devices, but the total power draw, including accessories, cannot exceed 100 VA when powered by the same transformer (U.S. only).
NOTE: Power must be off prior to connecting or removing connections from the 24 VAC power (24 V~ / 24 V) and 20 VDC power terminals. Use the heaviest gauge wire available, up to 18 AWG (1 mm2), with a minimum of 22 AWG (0.3 mm2), for all power wiring.
CACUATIOUNTION
To prevent a risk of short-circuiting and damage to your controller and external devices, do not reverse the polarity of the power supply connection cables.
IMPORTANT: Power multiple controllers from a single transformer and connect the same transformer secondary side to each device's power input terminal. When connecting power, ensure that one leg of the 24 VAC/VDC secondary circuit and the grounded terminal on the device connect to a known earth ground at the panel or enclosure. Be cautious not to exceed the power consumption limit of the transformer. Limit the distance of the power wire running between the device and the transformer to 400 feet (122 meters) for 18 AWG wire. For installation purposes, the installer is responsible for appropriately selecting the AWG gauge to ensure safe and efficient operation. If there are any doubts, they can be resolved through our engineering technical support to avoid any misunderstandings. Restrict installations to the same room. The transformer must be UL Listed for smoke control and needs to be mounted and installed in an enclosure. Use a 15407287 series power supply.

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Alerton Unitary Controller - Installation and Operations Guide

Power Wiring Examples

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1

PWR OUT MSET UIO

AUX COM OUT

MSET / C

IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

24VDC OUT

Power wiring example for one controller per transformer

UL Listed Class 2 Transformer

120/240 VAC
Max. 100 VA

24 VAC / VDC
COM
1

Earth Ground

123 V0
Unitary controller

Power wiring example for two or more controllers per transformer

UL Listed Class 2 Transformer

120/ 240 VAC
Max. 100 VA

24 VAC / VDC COM
1

Earth Ground

123 V0

Unitary controllers

Controller transformer and field device transformer wiring

UL Listed Class 2 Transformer

24 VAC / VDC 120/

240 VAC

COM

1
Max. 100 VA

Earth Ground

1 2 3 16 17 18 19 20

UL Listed Class 2 Transformer 120/ 240 VAC
1
Earth Ground

V0 AC OUT
SR IN SR1
C SR2

Unitary controller

1 WHEN CONNECTING POWER TO THE UNITARY CONTROLLERS, CONNECT THE COM OF THE VAC SECONDARY CIRCUIT TO A KNOWN EARTH GROUND.
Fig. 6 Power Wiring Example

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Alerton Unitary Controller - Installation and Operations Guide

Total Power of Controller's Nominal Power

Transformer

Consumption

SKU: VLC8u8-IP-BLE Power: 12 VA
Loads Exercised: Ethernet Ports x 1

SKU: VLC16u8-IP-BLE Power: 15 VA
Loads Exercised: Ethernet Ports x 1

SKU: VLC8u8-T1L-BLE Power: 10 VA
Loads Exercised: T1L Ports x 1

SKU: VLC16u8-T1L-BLE Power: 12 VA
Loads Exercised: T1L Ports x 1
Note: The Nominal Power Consumption does not include (SSR, Relay, UIO, AC/DC output). Only the controller is connected to transformer.

Total Power of Controller's Transformer

Maximum Power Consumption
SKU: VLC8u8-IP-BLE Power: 40 VA

Loads Exercised: Ethernet Ports x 2 Microset x 1 UIOs x 8 AUX OUT x 1 POW 24 Relays enabled
SKU: VLC16u8-IP-BLE Power: 62 VA

Loads Exercised: Ethernet Ports x 2 Microset x 1 UIOs x 16 AUX OUT x 3 POW 24 Relays enabled
SKU: VLC8u8-T1L-BLE Power: 40 VA

Loads Exercised: T1L Ports x 2 Microset x 1 UIOs x 8 AUX OUT x 1 POW 24 Relays enabled SKU: VLC16u8-T1L-BLE Power: 58 VA

Loads Exercised: T1L Ports x 2 Microset x 1 UIOs x 16 AUX OUT x 3 POW 24 Relays enabled

Note: The Maximum Power Consumption include (External Devices, Communication, Bluetooth Universal IO output and 24 VDC output, excluding the load on the SSRs and Relays).

Fig. 7 Power Consumption Details
CACUATIOUNTION
Risk of Electric Shock: More than one disconnect switch may be required to de-energize the equipment before servicing. To Reduce the Risk of Fire or Electric Shock, Do Not Interconnect the Outputs of Different Class 2 Circuits.
Grounding
Building earth ground (terminal 1) is a functional grounding, and it does not offer shock protection from a hazardous voltage. Connect the building earth ground (terminal 1) to the panel ground using the proper cable as shown above. Ensure that the panel ground connects to a known earth ground.

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Alerton Unitary Controller - Installation and Operations Guide
Selecting a power supply wire
Using the correct wire size is critical for long power supply wiring runs. If the wire is too small, the resistance can be too high, resulting in a low voltage supply to the Unitary Controllers. This is known as line loss. The wire size is based on the length of the wire run and the current draw of the Unitary Controller to be powered. Figure below describes the wire size based on maximum current draw and distance between the transformer and the Unitary Controller.
100

12 AWG

14 AWG

16 AWG

1 10

22 AWG

20 AWG

18 AWG

100

1000

10000

Feet of Wire

Fig. 8 Determining the appropriate wire size

For example, follow the below steps to determine the appropriate wire type to power a Unitary Controller with a transformer that is 110 feet from the Unitary Controller:
1. Find the maximum current drawn. For the Unitary Controller, the maximum current draw is 65 VA. 2. As shown in the above figure, find the intersection of the 65 VA line on the vertical axis (y) and 110 feet on the
horizontal axis (x). 3. Read the diagonal line to the right of the intersection point.

In this example, use 12 AWG wire or larger. (A smaller AWG designation indicates larger wire.)

Fig. 9 Example of determining appropriate wire type 17

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Alerton Unitary Controller - Installation and Operations Guide
INPUT / OUTPUT WIRING
Wiring Requirements
NOTE: When attaching two or more wires to the same terminal, other than 14 AWG (2.0 mm2), be sure to twist them together. Deviation from this rule can result in improper electrical contact.
Each terminal can accommodate the following gauge of wire: · Single wire: From 22 AWG (0.3 mm2) to 18 AWG
(1 mm2) solid or stranded · Multiple wires: Up to two 18 AWG (1 mm2) stranded, with 1/4 watt wire-wound resistor
· Prepare wiring for the terminal blocks, as follows: · Strip 1/2 in. (13 mm) insulation from the
conductor. · Cut a single wire to 3/16 in. (5 mm). Insert the wire in the required terminal location and tighten the screw. · If two or more wires are being inserted into one terminal location, twist the wires together with a minimum of
three turns before inserting them, see Fig. 10. · Cut the twisted end of the wires to 3/16 in. (5 mm) before inserting them into the terminal and tightening the
screw. · Pull-on each wire in all terminals to check for good mechanical connection.
NOTE: Do not over-tighten the terminal screws to avoid deformation and damage to the terminal block. The maximum torque for the terminal screws is 4.4 in-lb (0.5 Nm).

Fig. 10 Attaching Two or More Wires at Terminal Block

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Internal Wiring Examples
Internal Wiring Large Controller

Alerton Unitary Controller - Installation and Operations Guide

24 VDC or VAC

Factory Jumper

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

COM

AUX OUT

MSET C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

Power Input Input 4 A Max

Power SSR 3 A
72 VA

123

4 5 6 7 8 9 1 11 12 13 14 15

24 VDC or VAC

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23
24 VDC or VAC 16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

Voltage Auxiliary 75 mA 1.8 W
32 33 34 35 36 37 38
24 VDC 32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

24VDC OUT

RS485 1 PWR OUT MSET

COM

AUX OUT

MSET C

UIO IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

24 VDC or VAC

24 VDC

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

300 mA 7.2 VA Power Auxiliary

75 mA 1.8 W
Voltage Auxiliary

75 mA 1.8 W

Fig. 11 Internal Wiring Large controller

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Alerton Unitary Controller - Installation and Operations Guide

Internal Wiring Small Controller

24 VDC or VAC

Factory Jumper

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

COM

AUX OUT

MSET C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8 C

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Power Input Input 4 A Max

Power SSR 3 A
72 VA

123

4 5 6 7 8 9 10 11 12 13 14 15

24 VDC or VAC

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23
24 VDC or VAC 16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

24 VDC

24VDC OUT

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

COM

AUX OUT

MSET C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8 C

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

24 VDC or VAC

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

300 mA 7.2 VA Power Auxiliary
Fig. 12 Internal Wiring Small controller

75 mA 1.8 W
Voltage Auxiliary

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Alerton Unitary Controller - Installation and Operations Guide
Identifying terminals and terminal wire
Each Unitary Controller label identifies wiring terminals by number and function. Terminals are numbered from top to bottom, beginning with one on the upper left side of the controller and continuing top-to-bottom on the right side.
Power supply terminals
Three terminals (pin 1,2,3) are used to connect the 24 VAC power supply to the Unitary Controller. These are always sideby-side and are usually located on the upper-left or right side of the controller.
<num>-24 VAC

Terminal number (always located nearest to terminal). Identifies the terminal for the hot leg (ungrounded) of the 24 VAC circuit.
Fig. 13. Power wiring terminals
Grounded terminals
Ground (GND) terminal (pin 1) is used for terminating the grounded leg of the 24 VAC circuit or BO return grounds.
<num>-GND
Terminal number (always located nearest to terminal). Identifies the terminal for the grounded leg of the 24 VAC circuit. Also identifies BO return ground.
Fig. 14 Grounded terminals
IMPORTANT: Never terminate input signals to a GND terminal.
Common terminals
Common (COM) terminals (pin 19, 22, 33, 36, 41, 44, 47, 51, 53, 56, 59, 62, 64, 67, 70) (common ground, or input signal return ground) provide a low-impedance connection for input circuitry to the Unitary reference ground. Use these to terminate the return ground for inputs.
<num>-COM

Terminal number (always located nearest to terminal). Identifies the common ground terminals for I/Os.
Fig. 15 Common terminals
IMPORTANT: Input common terminals (those nearest to IN terminals) are internally connected to a separate input ground plane. To maximize input accuracy, always connect input return grounds only to these COM terminals. Do not connect outputs or power grounds to input COM terminals.
Universal inputs and outputs terminals
Use Universal Input terminals (32 to 38, 52 to 72) (in conjunction with adjacent COM terminals) to connect universal inputs. <num>-IO<ID>

Terminal number (always located nearest to terminal).

Identifies universal input terminals. The <ID> indicates the BI and AI objects in software that correspond to the physical input terminals. If the input is suitable for Microset or Microtouch, the designator MSET appears beside the input.

Fig. 16 UIO terminals

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Alerton Unitary Controller - Installation and Operations Guide
24 VDC Source
The 24 VDC source provides low-current 24 VDC to power transducers or other sensors. For non-Unitary devices, this terminal provides a maximum 75 mA.
<num>-24 VDC
Terminal number (always located nearest to terminal). Identifies 24 VDC source output (constant, not controlled by software).
Fig. 17 24 VDC Source terminals For more details refer Terminal Connections on page 23 and Input / Output Wiring on page 18.

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Alerton Unitary Controller - Installation and Operations Guide

TERMINAL CONNECTIONS

All the terminals for this controller are removable.

Terminal

Label

POWER 24V

SPDT RELAY

NC1

NO1

IN1

NC2

NO2

IN2

NC3

NO3

IN3

NC4

NO4

IN4

SPDT SSR

AUX OUT

SRIN

SR1

SR2

SR3

SR4

UIO

IO13

IO14

IO15

IO16

24 VDC OUT

Table 15 Terminal Connections Description
Functional earth ground (Connected to building earth ground) Power supply voltage (connected to 24 V0) Power supply voltage (connected to 24 VAC or VDC)
SPDT Relay 1 Normally Close (BO-21) SPDT Relay 1 Normally Open (BO-21) SPDT Relay 1 Input Power (BO-21) SPDT Relay 2 Normally Closed (BO-22) SPDT Relay 2 Normally Open (BO-22) SPDT Relay 2 Input power (BO-22) SPDT Relay 3 Normally Closed (BO-23) SPDT Relay 3 Normally Open (BO-23) SPDT Relay 3 Input power (BO-23) SPDT Relay 4 Normally Closed (BO-24) SPDT Relay 4 Normally Open (BO-24) SPDT Relay 4 Input power (BO-24)
24 VAC or VDC output (depending on power supply) SSR power input (Connected to AUX OUT with a factory jumper) Solid State Relay Output 1 (BO-31) Common Solid State Relay Output 2 (BO-32) Solid State Relay Output 3 (BO-33) Common Solid State Relay Output 4 (BO-34)
Universal Input / Output 13 (AI-13/BI-13/AO-13/BO-13) Common Universal Input / Output 14 (AI-14/BI-14/AO-14/BO-14) Universal Input / Output 15 (AI-15/BI-15/AO-15/BO-15) Common Universal Input / Output 16 (AI-16/BI-16/AO-16/BO-16) Supplies 24 VDC, 75 mA of current

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Alerton Unitary Controller - Installation and Operations Guide

Table 15 Terminal Connections

Terminal Label BACnet® IP CAT5/6 Model

Description

Port 1

Port 2

BACnet® IP T1L Model

Ethernet IP 1, 10/100 Switched Ethernet IP 2, 10/100 Switched

DA+

DA-

T1L Port 1 + T1L Port 1 -

T1L Port 1 Common

DA+

DA-

T1L Port 2 + T1L Port 2 -

44 RS485 1

T1L Port 2 Common

COM

Power Output (PWR OUT)

RS485 Modbus + RS485 Modbus Connected to V0.

AUX OUT

24 VAC / VDC Auxiliary power output (connected to terminal 3)

24 VAC / VDC Auxiliary Power output (connected to terminal 2)

Microset Bus (For Microset II and Microset 4)

50 51
UIO

MSET COM

Microset/Microtouch (AI-0). Common

IO1

Universal Input / Output 1 (AI-1/BI-1/AO-1/BO-1)

Common

IO2

Universal Input / Output 2 (AI-2/BI-2/AO-2/BO-2)

IO3

Universal Input / Output 3 (AI-3/BI-3/AO-3/BO-3)

Common

IO4

Universal Input / Output 4 (AI-4/BI-4/AO-4/BO-4)

IO5

Universal Input / Output 5 (AI-5/BI-5/AO-5/BO-5)

Common

IO6

Universal Input / Output 6 (AI-6/BI-6/AO-6/BO-6)

IO7

Universal Input / Output 7 (AI-7/BI-7/AO-7/BO-7)

Common

IO8

Universal Input / Output 8 (AI-8/BI-8/AO-8/BO-8)

Common

24 VDC OUT Supplies 24 VDC, 75 mA of current

IO9

Universal Input / Output 9 (AI-9/BI-9/AO-9/BO-9)

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Alerton Unitary Controller - Installation and Operations Guide

Terminal 67 68 69 70 71 72

Label C IO10 IO11 C IO12 24 VDC OUT

Table 15 Terminal Connections
Description Common Universal Input / Output 10 (AI-10/BI-10/AO-10/BO-10) Universal Input / Output 11 (AI-11/BI-11/AO-11/BO-11) Common Universal Input / Output 12 (AI-12/BI-12/AO-12/BO-12) Supplies 24 VDC, 75 mA of current

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Alerton Unitary Controller - Installation and Operations Guide

UIO Wiring Examples

24VDC OUT

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

COM

AUX OUT

MSET /C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

24VDC OUT

16 x Universal Input/Output (UIO)

52 IO1 53 C 54 IO2 55 IO3 56 C 57 IO4 58 IO5 59 C 60 IO6 61 IO7 62 C 63 IO8 64 C 65 24 VDC
OUT 66 IO9 67 C 68 IO10 69 IO11 70 C 71 IO12 72 24 VDC
OUT 32 IO13 33 C 34 IO14 35 IO15 36 C 37 IO16 38 24 VDC
OUT

Input Connection examples

Voltage Input

Thermistor / Resistive Input

Ensure correct polarity
++
VV -0 to 10 VDC

e.g, 20 k NTC PT 1000

100 to 100 k:

Current Input

Dry contacts / Digital Input

Digital Input / External

Externally Powered

Ensure correct

Voltage (Power 0-10 V)

Ensure correct

polarity

minimum

External Power SS Supply

DIGITAL
0 V

wetting current 3.5 mA

logic open dry contact

circuit collector contact

IO C
IO C IO
C IO
C IO
C IO C IO

Pulse Meter (Type 1: Pulse with Power 5-30 V)
+ _V
Pulse Meter (Type 2: Pulse without Power)

Output Connection examples

C IO IO C IO

Output Type

Load

0 to 10 VDC, 10 mA max. 1k :

4 to 20 mA
IN 0V

550 :

0V IN 0V IN

Voltage Output to Power External Relay

Ensure correct

Rectifier Diode is

polarity

LOAD

recommended to

SUPPLY

protect the output.

This diode is designed

specifically to convert AC to DC. It can pass

+ - RELAY

current of up to 1 A, and

have peak inverse voltage

(PIV) rating of 1000 V.

Analog Output (UIO)

Ensure correct polarity

+
- 0 to 10 VDC

IO C
IO C
DC LOAD

Analog Output (UIO) provides a variable voltage between 0 to 10 VDC and the output can source up to 20 mA.

Fig. 18 Universal IO Wiring Examples
NOTE: · UL Standards recommend all wiring connections for the IO, SSR, 24 VAC / VDC circuits are restricted to the same room. · Use a protective diode for any circuit that allows the current to flow forward because the current will not flow in the reverse direction. The diode protects the components responsive to the current flow through them in the wrong direction.

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SSR (DO) Wiring Examples

Alerton Unitary Controller - Installation and Operations Guide

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

COM

AUX OUT

MSET /C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

Solid State Relay (SSR)

24VDC OUT

SSR wiring with one transformer and factory jumper

UL Listed Class 2 Transformer

120/ 240 VAC
Max. 100 VA

Max. 24 VAC COM
1

Factory Jumper wire
M

Field M Devices

Earth Ground

1 2 3 16 17 18 19 20

V0 AUX OUT
SR IN SR1
C SR2

16 AUX OUT 17 SR IN 18 SR1 19 C 20 SR2 21 SR3 22 C 23 SR4

Unitary controller

SSR wiring with separate transformer without jumper installed

UL Listed Class 2

Transformer

Transformer
120/ 240 VAC
1
Max. 100 VA

24 VAC COM

Max. 24 VAC / VDC

Fuse

Field

Devices 1

120/ 240 VAC

Earth Ground

1 2 3 16 17 18 19 20

V0 AUX OUT
SR IN SR1
C SR2

Unitary controller
1 WHEN CONNECTING POWER TO THE UNITARY CONTROLLERS, CONNECT THE COM OF THE VAC SECONDARY CIRCUIT TO A KNOWN EARTH GROUND.

Fig. 19 SSR (DO) Wiring Examples
NOTE: · SR IN (terminal 17, SSR power input) is connected to AUX OUT (terminal 16, 24 VAC~ output) by a jumper wire
provided by the factory. · Remove the jumper if you want to power field devices with an external power supply - 24 VAC transformer or
20 VDC. · All terminals are protected against short circuit and 24 VAC. · Use wire only.
CACUATIOUNTION
Risk of Electric Shock: More than one disconnect switch may be required to de-energize the equipment before servicing.

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Alerton Unitary Controller - Installation and Operations Guide

Auxiliary Wiring Examples

51 C 50 MSET

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

AUX - COM OUT V MSET /C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

24VDC OUT

48 AUX OUT
49 V

Auxiliary Power Output
1 x 24 VAC/VDC at 3 A 1 x 24 VAC/VDC at 300 mA
Ensure Correct Polarity

AUX OUT

49 V

1 2 34
MS4

24 VAC/DC+ COM
IN-0/MSET N/A

Fig. 20 Auxiliary Wiring Examples

NOTE:
The Auxiliary power output (terminals 48, 49) is supplied from the controller input power supply (terminals 3, 2 respectively). The polarity of the external devices must be checked with the controller input power supply. If the polarity is reversed, external devices may be damaged.

SPDT Relay Wiring Examples

123

4 5 6 7 8 9 1 11 12 13 14 15

16 17 18 19 2 21 22 23

123 V
POWER 24V

4 5 6 7 8 9 1 11 12 13 14 15 NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4 DO RELAY

16 17 18 19 2 21 22 23 AUX SRIN SR1 C SR2 SR3 C SR4 OUT DO SSR

32 33 34 35 36 37 38
32 33 34 35 36 37 38 IO13 C IO14 IO15 C IO16 UIO

24VDC OUT

1 RS485

PORT1

PORT2

10/100 SWITCHED

RS485 1 PWR OUT MSET UIO

AUX - COM OUT V MSET /C IO1

IO2 IO3

IO4 IO5

IO6 IO7

IO8

24VDC C OUT

IO9

C IO1

IO11 C IO12

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6 61 62 63 64 65 66 67 68 69 7 71 72

Jumper Bar

4 NC 5 NO 6 IN 7 NC 8 NO 9 IN 10 NC 11 NO 12 IN 13 NC 14 NO 15 IN

DO Relay

Fuse
L External M N Power 3 Speed Fan Supply

DO Relay wiring examples

AC or DC Motor

Resistive Heater

NC NO IN NC NO IN

Field

+
V -

AC or DC External Power Supply

Devices

Electrical Resistive

V -

External Power Supply

Heater

Fig. 21 SPDT Relay Wiring Examples

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Alerton Unitary Controller - Installation and Operations Guide
MICROSET BUS
Alerton Unitary Controllers have dedicated Wall Modules bus compatible with Alerton wall modules such as Microtouch, Microset II & Microset 4. These compatible wall modules can be connected to the controller's wall module bus (terminals 50 and 51).
· The input from the Microset should always be connected to terminal 50. · The maximum current provided at the Wall Module bus interface is 96 mA.
Microtouch
A Microtouch uses three conductor cable one for power supply and other two for input/common connections to all Unitary Controllers.
Wiring for the Microtouch is as follows:
Yellow wire: Terminates to any UIO 1-8 or 1-16 (10 k space temperature thermistor). White wire: Terminated to COM (Ground). Red wire: Terminates to any UIO 1-8 or 1-16 (Setpoint bias).
The setpoint bias potentiometer is a 5 k single-turn potentiometer that reads 1.9 k to 2.8 k as the setpoint bias lever travels from the C to H position.
For Microtouch connections18 AWG, two conductors twisted shield cable is required. With the Alerton-recommended wire, the maximum distance is 250 feet.
NOTE: A jumper is recommended for Microtouch configuration, jumper is connected between Microtouch 10K thermistor terminal and MSET terminal. This allows for option of connecting a Field Service Tool. Temperature reading will not be correct without jumper installed unless MV Object Microtouch type is used.
Microset II
A Microset II has three conductor connection to all Unitary Controllers.
Wiring for the Microset II is as follows:
Black wire: Terminal 1 on the MS4 to the terminal 50 labeled MSET. White wire: Terminal 2 on the MS4 to the terminal 51 COM. Orange wire: Terminal 3 on the MS4 to terminal 48 (Aux Out).
For Microset II connections, 18 AWG two conductor twisted shield cable is required. With Alerton-recommended wire, the maximum distance is 250 feet.
Microset 4
A Microset 4 has three conductor connection to all Unitary Controllers.
Wiring for the microset 4 is as follows:
Red wire: Terminal 1 on the MS4 to terminal 48 (Auxiliary Output). White wire: Terminal 2 on the MS4 to the terminal 51 COM. Black wire: Terminal 3 on the MS4 to the terminal 50 labeled MSET.
For Microset 4 connections, use 18 AWG shielded, twisted-pair cable for best results. With Alerton-recommended wire, the maximum distance is 250 feet.
NOTE: The Alerton Unitary Controllers also support legacy microset wall modules such as MS-1010-BT, MS-1010H-BT, MS-1030-BT, MS-1030H-BT.

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Alerton Unitary Controller - Installation and Operations Guide
Wire shields and shield grounding
Use 18 AWG two-conductor twisted shield cable for all inputs and analog outputs to reduce electrical interference (noise). A single-point grounding scheme that uses the transformer or panel ground is optimum. Ground only one end of the shield drain wire.
CACUATIOUNTION
Do not ground shields to any terminal on the Unitary Controller because any signal on the shield is routed through the Unitary Controller circuit board to earth ground. Improper grounding can cause equipment damage.
Microset II/ Microset 4 / Microtouch Wiring Examples
72 0F

24 VAC/DC+ COM IN-0/MSET N/A

12 34

100 VA Fused primary

24 VAC COM

UL Listed Class 2

Transformer

Panel/enclosure ground. Must connect to known
earth ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

32 33 34 35 36 37 38

IO13 C
IO14 IO15

C C
SR4 IO10

SR3

24VDC SR2 OUT

SR1

SRIN

AUX OUT

IN4

NO4

IO4 NC4

IN3

NO3

IO2 NC3

IN2

NO2

C NC2

MSET IN1

AUX OUT NC1
V0
NO1

+
V0
COM

IO11 C IO12 24VDC OUT

IO7

IO6

IO5

IO3

IO1

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

IO8

IO9

Fig. 22 Alerton Unitary Controller wiring with Microset 4 (Large Variant)

IO16 24VDC
OUT

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72 0F

Alerton Unitary Controller - Installation and Operations Guide

24 VAC/DC+ COM IN-0/MSET N/A

1234

100 VA Fused primary

24 VAC COM

UL Listed Class 2

Transformer

Panel/enclosure ground. Must connect to known
earth ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

SR4

SR3

24VDC SR2 OUT

SR1

SRIN

AUX OUT

NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4

+
V0
COM

IO7

AUX OUT
V0
MSET C
IO1 C IO2 IO3 C IO4 IO5 C IO6

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

IO8

24 VAC COM IN 0/MSET

Fig. 23 Alerton Unitary Controller wiring with Microset 4 (Small Variant)
Back of Microset II
Shielded, 18 AWG. 250 ft. max.
Black White Orange
One side of shield to ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

32 33 34 35 36 37 38

IO13 C
IO14 IO15

C SR2 SR3
C SR4

SR1

SRIN

AUX OUT

IN4

NO4

IO4 NC4

IN3

NO3

IO2 NC3

IN2

NO2

NC2

IO11 C IO12 24VDC OUT

C 24VDC
OUT IO9 C IO10

MSET IN1

V0
NO1

NC1

+
V0
COM

IO7

IO6

IO5

IO3

IO1

AUX OUT

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

IO8

C IO16 24VDC OUT

Fig. 24 Alerton Unitary Controller wiring with Microset II (Large Variant)

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Alerton Unitary Controller - Installation and Operations Guide

24 VAC COM IN 0/MSET

Back of Microset II
Shielded, 18 AWG. 250 ft. max.
Black White Orange
One side of shield to ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

SR4

SR3

24VDC SR2 OUT

SR1

SRIN

AUX OUT

NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4

+
V0
COM

IO7

AUX OUT
V0
MSET C
IO1 C IO2 IO3 C IO4 IO5 C IO6

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

IO8

Fig. 25 Alerton Unitary Controller wiring with Microset II (Small Variant)

UL Listed Class 2 Transformer
Fused primary
1
100 VA

24 VAC COM

Panel/enclosure ground. Must connect to known
earth ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

32 33 34 35 36 37 38

IO13 C
IO14 IO15

C SR2 SR3
C SR4

SR1

SRIN

AUX OUT

IN4

NO4

NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4

IO11 C IO12 24VDC OUT

C 24VDC
OUT IO9 C IO10

+
V0
COM

IO7

IO6

IO5

AUX OUT
V0
MSET C
IO1 C IO2 IO3 C IO4

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

IO8

Hard jumper wire required from MSET port for the Service Jack
UIO 1 COM
W
UIO 2
C
ON OFF
Microtouch UIO 1 is temperature sensing and MSET connection UIO 2 is setpoint adjust.
Fig. 26 Alerton Unitary Controller wiring with Microtouch (Large Variant)

C IO16 24VDC OUT

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Alerton Unitary Controller - Installation and Operations Guide

UL Listed Class 2 Transformer
Fused primary
1
100 VA

24 VAC COM

Panel/enclosure ground. Must connect to known
earth ground.

123

4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23

SR4

C SR2 SR3

SR1

SRIN

AUX OUT

NC1 NO1 IN1 NC2 NO2 IN2 NC3 NO3 IN3 NC4 NO4 IN4

C 24VDC
OUT

+
V0
COM

IO7

AUX OUT
V0
MSET C
IO1 C IO2 IO3 C IO4 IO5 C IO6

_ 45 46 47

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

IO8

Hard jumper wire required from MSET port for the Service Jack
UIO 1 COM
W
UIO 2
C
ON OFF
Microtouch UIO 1 is temperature sensing and MSET connection UIO 2 is setpoint adjust.
Fig. 27 Alerton Unitary Controller wiring with Microtouch (Small Variant)

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Alerton Unitary Controller - Installation and Operations Guide
LED OPERATIONS
The controller features the following LEDs.
BACnetTM IP CAT5/6 Model
MODBUS LED

SERVICE PIN LED

STATUS LED SERVICE BUTTON LED

BACnetTM IP T1L Model
IP T1L LED MODBUS LED

SERVICE PIN LED SERVICE BUTTON LED

STATUS LED
Fig. 28 LED Interface

Controller Status LED

Table 16 Controller Status LED

LED Status Green blinks every 200 ms.

Visual

Mode Firmware downloading

Red, Green, Yellow blinks every 1 sec. Red permanent ON Green LED permanent ON.

No DDC application Broken sensora) Short circuita) Normal operation

Red LED blinks every 1.5 sec.

Microset communication error

a) The broken sensors and short circuit are applicable to the UIOs. Note: While sending a DDC file to the device, the LED status temporarily goes to the "No DDC application" sequence. Once the DDC has been sent and saved, the LED status returns to "Normal operation."

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Modbus LED Status
LED Status Green LED permanent ON Yellow LED permanent ON Red LED permanent ON LED OFF
IP T1L LED Status
LED Status Green LED permanent OFF Yellow LED permanent OFF LED OFF

Alerton Unitary Controller - Installation and Operations Guide

Table 17 Modbus LED Status

Visual

Mode Modbus Communication is healthy - Successful to read/write all of Modbus registers configured in the application. Modbus Communication is not healthy - failure to read/write some of Modbus registers configured in the application. Modbus Communication failure - failure to read/write all of the Modbus registers configured in the application.
No Modbus registers have been configured or found on the application.

Table 18 IP T1L LED Status

Visual

Mode Link is up, Valid IP address is configured. Communication is healthy.
Link is up, no valid IP address is configured.

Link is down.

NOTE: In the IP T1L network for example, 5 devices are connected in daisy chain like device 1, 2, 3 and so on. If the device 2 is powered off (Daisy chain connection not disturbed) the link from device 1 and device 3 is still up, and the IP T1L LED status also in solid green.
Service Pin LED Status
Table 19 Service Pin LED Status

LED Status Green LED permanent ON
LED OFF

Visual

Mode On Service PIN button Press On release of Service PIN button

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Alerton Unitary Controller - Installation and Operations Guide
UNITARY CONTROLLERS CONFIGURATION
Compass Device Configuration
The configuration of the Unitary controller can be completed like most other Alerton controllers by doing the following:
NOTE: A Compass Device Configuration of the Unitary Controller is compatible with version 2.2.3.7 and higher.
1. From the Compass menu, click Device Manager. 2. Click Device Scan. 3. Choose the option Scan configurable Alerton devices. 4. Click Scan. 5. As soon as the Unitary device appears, click Stop. 6. Click Configure.
Recovering from a Misconfiguration
If the communication with VLC is not possible due to incorrect or unknown configuration, then the user can use Compass "Scan for configurable devices" feature via BACnet/Ethernet.
Initial Screen

Configuration Parameter Host name

Fig. 29 Edit Device Configuration Table 20 Device Configuration

Values

Description

Default

Must be a valid host name, and special characters are also acceptable

VLC

NOTE:
Every time a change in configuration is sent to the device, a reboot is expected before new configurations take place. Once device comes back online, all new configurations will be effective. User can observe bi-color LED during this process. When the LED turns off for a few seconds it means the device is rebooting. The complete process will vary in time and is in direct proportion to the number of existing objects (trendlogs, schedules, alarms, etc.) stored in the device. Therefore, even after the Tri-color LED comes back on, the device might still not be reachable for some time. Refer Factory Reset Using the Service Button on page 8 for more details.

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Alerton Unitary Controller - Installation and Operations Guide
Data Persistence and Backup
All programmed objects (such as schedules, trendlogs and alarms), DDC, data values, and the ROC file execute in RAM and are periodically backed up in flash memory. Data is retained through power loss as follows:
· VLC16u8/VLC8u8 data is backed up every 5 minutes or less. · Trend logs data is backed up every 15 minutes. · Niagara has its own periodic writing schedule. This is configurable; the default is once per day. Configuration parameters are stored in flash memory. Likewise, all configuration data is retained through power loss.
Configuration parameters can be saved in the DCF file and then sent to the Unitary. This facilitates off-site setup and easy replication of settings to other controllers in similar installations.
Ethernet and IP

Fig. 30 Edit Device Configuration, Ethernet, and IP Settings

Configuration Parameter

Values

Config method for DNS server

None DHCPv4 | SLAAC | Manual |

Manual DNS Server 1 (IPv4/IPv6 addr)

Manual DNS Server 2 (IPv4/IPv6 addr)

ETH MTU

IPv4 Info Enable IPv4 Configuration method for IPv4 address Manual IPv4 address

Y/N DHCP | Manual

Table 21 Ethernet and IP Settings Description

Default

Method how DNS will be configured for this device.

None

Manual entry for DNS entry. Only valid if Manual was selected as the Config method for DNS server above.

The Maximum Transmission Unit (MTU) in bytes. Default is 1500 (typical for Ethernet networks).

1500

Enable/Disable the IPv4 Protocol How will IPv4 address be obtained IP address input by default configuration was selected above

Y Manual 192.168.1.200

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Alerton Unitary Controller - Installation and Operations Guide

Configuration Parameter

Values

Manual IPv4 netmask

Config method for IPv4 default gateway

DHCP | Manual | None

Manual IPv4 default gateway

Allow traffic to/from

other subnets

Y/N

[ADVANCED]

IPV6 Info

Enable IPv6

Y/N

Configuration method SLAAC |

for IPv6 address

Manual

Manual IPv6 address

Manual IPv6 prefix bits

Allow traffic to/from

other subnets

Y/N

[ADVANCED]

Table 21 Ethernet and IP Settings

Description

Default

Subnet mask input by default configuration was selected above. 255.255.255.0

How will default gateway selection be set

None

By default gateway input configuration was selected above. Security feature to prevent devices from another subnet from reaching this device.

0.0.0.0 N

Enable/Disable the IPv6 Protocol

SLAAC

IPv6 address input if manual IPv6 address configuration was selected above

: :

Manual entry for IPv6 network prefix

Security feature to prevent devices from another subnet reaching this device.

BACnet Configuration

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Fig. 31 BACnet Configuration 38

Alerton Unitary Controller - Installation and Operations Guide

Table 22 BACnet Configuration

Configuration Parameter
Device Instance

Values 1 to 30001

DDC write priority (9...16) 9 to 16

Default COV Resubscription Interval (minutes, 0=disable)

0 to 10

NR holdoff time (seconds, 10...900)

10 to 900

Max_APDU_Length Upper 1024 to

Limit

1476

Password for BACnet Backup NOTE: This setting is only available in the Device Configuration screens within Compass 2.2.0 Password for BACnet Restore and Restart/Control: NOTE: This setting is only available in the Device Configuration screens within Compass 2.2.0

Description

Default

The numeric instance of the VLC as a device on the BACnet network (must be unique for the entire system).

30001

A higher priority for writing takes precedence over lower

priorities. The highest priority is 1, the lowest is 16. These are also called indexes of the priority array. This table depicts the

typical priorities used.

This value is the interval in minutes that the VLC will use for

re-subscribing to external points to be notified on changes of

value (if the external device does not support the change of value notifications, the VLC will default to polling).

NOTE: A value of 0 will disable the VLC ability to send COV

Subscriptions.

To enhance performance and reduce wasted bandwidth when

devices are not present, or temporarily offline, the VLC will fall

back to a periodic communications check for devices to which

it has stopped receiving responses. The NR Holdoff Time

specifies the time in seconds the VLC will wait after determining a device is offline before trying to talk to it again.

600

It is recommended to set this value low for the initial setup (1-

2min), then bump it up once everything is up and working.

Minimum of 10 seconds, maximum of 900 seconds (15

minutes) default is 600 seconds (10 minutes).

Maximum BACnet message size the device can/will accept.

Typically associated with complex data or read property multiple requests. For IPv6 installations, it is recommended to

1476

drop this down to 1440 or lower.

This is the password used for the BACnet Device Communications Control (Backup Password limit is between xxxxxxxxx 8 and 64 characters.

This is the password used for the BACnet Device Communications Control (Enable/Disable communications, and Restore), and Reinitialize Device (Reinitialize Warmboot xxxxxxxxx and Reinitialize Coldboot) services. Password limit is between 8 and 64 characters.

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Alerton Unitary Controller - Installation and Operations Guide
BACnet Point Objects

Fig. 32 BACnet Point Objects

Table 23 BACnet Point Objects

Configuration Parameter

Values

Include diagnostic points in object list

Y/N

Description

Default

Diagnostic points in the 100,000+ range will be listed in the Object

List property. NOTE: If enabled, diagnostic points will also be saved into the

device's point data MDB file, which may not be desirable.

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BACnet Network Configuration

Alerton Unitary Controller - Installation and Operations Guide

Configuration Parameter
BACnet Network Type
BACnet/IPv4

Fig. 33 BACnet Network Connection Table 24 BACnet Network Configuration

Values BACnet IPv4 BACnet IPv6 BACnet/Ethernet

Description Select BACnet Network Connection and then from the BACnet Network Type, select required network from the drop-down list.

Fig. 34 BACnet/IPv4 41

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Alerton Unitary Controller - Installation and Operations Guide

Table 25 BACnet/IPv4

Configuration Parameter

Values

Description

Default

Mode

Normal | Register as foreign device

Normal mode settings

Controls the mode of participation on the BACnet network

Normal

UDP Port

Specifies the UDP Port number to be used by BACnet/IPv4. The

range is 1-65534, but many numbers are reserved or used for

common services unrelated to BACnet (contact the site's IT

47808

department for any limitations and restrictions). The default value is

47808 (which corresponds to 0xBAC0 in hexadecimal).

Disable Local Broadcast

Y/N

Prevent the VLC from sending and Broadcast messages on the specified IP network.

Min auto-assigned local UDP port

Automatically assign the minimum UDP Port value to the Alerton controller while Registering as a Foreign Device.

49512

Max auto-assigned local UDP port

Defines the maximum UDP Port value for auto assigning to the Alerton controller when Registering as a Foreign Device.

65534

Input IP address or Host Name for BBMD to register with. NOTE: Host Name Lookup requires setting up a valid DNS Server reference.

Specifies the UDP Port number of the BBMD to which you want to register. The range is 1-65534, but many numbers are reserved, or used for common services unrelated to BACnet (contact the site's IT department for any limitations and restrictions). Default is the BACnet standard 47808 (which corresponds to 0 x BAC0 in hexadecimal).

47808

Reregistration interval (sec)

10-3600

Specifies frequency re-registration of the Alerton controller with the

BBMD. Since Foreign Devices must register with a BBMD to enable

broadcast traffic to be received from, and sent to the Foreign

Device, and since Foreign device registration is not required to be

persisted in the event of a BBMD reset, it is important to select a

value for reregistration that balances data criticality with network performance. In most cases the default 300sec (5 minutes),

300

reregistration interval is more than adequate for ensuring the

foreign device has connectivity into the system, but in some cases

where you have critical data being passed to/from the foreign

device, you may want to bump the reregistration up to 60sec, or

even the minimum value of 10 sec.

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BACnet/IPv6

Alerton Unitary Controller - Installation and Operations Guide

Configuration Parameter
Mode

Values Normal | Register as foreign device

Use real VADDR for

device instance

Y/N

4194303

Normal mode settings UDP Port

Fig. 35 BACnet/IPv6 Table 26 BACnet/IPv6
Description

Default

Control the mode of participation on the BACnet network.

Normal

Enables/Disables the use of the device's real VADDR when the device instance is set to 4194303. The default setting is disabled. For IPv6 devices, the MAC address is a very large value. To shorten the values BACnet passes across the network and to simplify device identification a Virtual MAC is used that equals the devices Device Instance. In the event two IPv6 devices had the same device instance (as in the case of the default instance 4194303), this could result in difficulties communicating with and N re-configuring the devices (as the devices Net and MAC would appear there same). For this reason, a random Virtual Address "VADDR" is chosen for devices with the default device instance 4194303 to ensure each device has a unique address. Enabling this feature will result in the VMAC getting set to the device's rNeOalTinEs:tIatnisceneovf e4r1r9e4c3o0m3m. ended to use the default device instance, so enabling this feature should not be necessary.

Specifies the UDP Port number to be used by BACnet/IPv6. The

range is 1-65534, but many numbers are reserved or used for

common services unrelated to BACnet (contact the site's IT

47808

department for any limitations and restrictions). The default

value is 47808 (which corresponds to 0xBAC0 in hexadecimal).

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Alerton Unitary Controller - Installation and Operations Guide

Configuration Parameter

Values

Description

Default

Multicast prefix

Specifies the multicast prefix to be used by your IPv6 network. This multicast prefix defines the scope of the multicast transmission, or how far the multicast address will propagate (this is dependent on the network configuration and the Site setup, so contact the local IT specialist for specifics).

ff02::

Min auto-assigned local UDP port

Automatically assign the minimum UDP Port value to the Alerton controller while Registering as a Foreign Device.

49152

Max auto-assigned local UDP port

Defines the maximum UDP Port value for auto assigning to the Alerton controller when Registering as a Foreign Device.

65534

The name or IPv6 address of BBDM to register with can be used. If the name is used, DNS must be configured and working properly.

Specifies the UDP Port number of the BBMD to which you want to register. The range is 1-65534, but many numbers are reserved, or used for common services unrelated to BACnet 47808 (contact the site's IT department for any limitations and restrictions).

Reregistration interval (sec)

10-3600

Specifies how often the Unitary Controller will re-register with the BBMD. Since Foreign Devices must register with a BBMD to enable broadcast traffic to be received from, and sent to the Foreign Device, and since Foreign device registration is not required to be persisted in the event of a BBMD reset, it is important to select a value for reregistration that balances data criticality with network performance. In most cases the default 300 300sec (5 minutes), reregistration interval is more than adequate for ensuring the foreign device has connectivity into the system, but in some cases where you have critical data being passed to/from the foreign device, you may want to bump the reregistration up to 60sec, or even the minimum value of 10 sec.

NOTE:
In rare cases some controllers may enter a Non-Responsive state when configuring for IPv6 if previously configured for IPv4. If this occurs, power cycle the controller and it will restart configured for IPv6.

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BACnet Compatibility

Alerton Unitary Controller - Installation and Operations Guide

Fig. 36 BACnet Compatibility

Table 27 BACnet Compatibility

Configuration Parameter

Values

Enable extensions for large networks

Y/N

Relax date/time checking

Y/N

Description

Default

This feature attempts to space out initial Trendlog notifications on

VLC that have many Trends setups with the same interval (to

distribute the load on the server).

In BACnet Protocol Revision 13, the BACnet specification was

updated to more closely define where wildcards can be used in

Dates and Times. To meet the specification for a protocol beyond 13

the VLC had to enforce these new requirements, which made some of the default values use by Alerton Frontends to be no longer

allowed. To maintain compatibility with Alerton workstation software

older than Compass 1.4 Update 2.2.0, this option was added to

disable the more restrictive wildcard checking.

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Alerton Unitary Controller - Installation and Operations Guide
Time Synchronization Configuration

Fig. 37 Time Synchronization Configuration

Table 28 Time Synchronization Configuration

Configuration Parameter
Time synchronization using Configuration method for NTP
Manual Server 1 Manual Server 2
Minimum NTP polling time in sec

Values

Description

Default

BACnet only NTP only

This configuration item determines whether time sync is done using the BACnet protocol or NTP only.

BACnet only

Manual DHCPv4

This allows for the automatic configuration of the NTP servers using DHCP. The adapter on which DHCP is enabled should be specified here. The NTP server information can also be entered manually by choosing the "Manual" option here.

Manual

Any NTP server

name or IP

Two NTP server names or IP address can be

address within the configured. Ideally, the server shall be within the

LAN. This field LAN.Ensure that the DNS server and Default GW are

allows manual configured correctly.

configuration.

The minimum duration in seconds between each

request from the client after the first update. The first-

time update happens within 2 seconds on startup.

This configuration is used for both Manual and DHCP

options.

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Alerton Unitary Controller - Installation and Operations Guide
UTC Offset, Daylight saving, Latitude, Longitude

Fig. 38 UTC Offset, Daylight Savings, Lat & Lon

Table 29 TC Offset, Daylight Savings, Lat & Lon

Configuration Parameter
Latitude Longitude

Values
AV-101910 AV-101911

Set UTC offset, minutes .

Daylight Saving Period NOTE: Additional parameters, DST START DATE & TIME, Disabled | By and DST END DATE & date range TIME fields are not accessible via the serial configuration.

Description

Default

User input latitude of controller location

47.852429

User input longitude of controller location

-122.2684254

Type the UTC offset, in minutes, that corresponds to the difference between

UTC and local standard time where the Alerton operates. Time zones to the West of the zero-degree meridian are positive values and those to the East are negative values. Coordinated Universal Time (UTC) is equivalent to Greenwich Mean Time, which refers to time kept on zero-degree meridian (Greenwich meridian). Use the UTC offset to specify the time zone in which the VLC is operating. Typical UTC offsets for the US are listed. Atlantic Standard Time: +240 Eastern Standard Time: +300 Central Standard Time: +360 Mountain Standard Time: +420 Pacific Standard Time: +480 Alaska Standard Time: +540 Hawaii-Aleutian Standard Time: +600 Samoa Standard Time: +660

By data range

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Alerton Unitary Controller - Installation and Operations Guide
Modbus
Modbus Overview:
This hardware has built-in support for integrating Modbus functionality, allowing for seamless communication and control of external devices. It supports up to 100 AV and 100 BV objects, with the AV range spanning from AV-800 through AV-899 and BV-800 through BV-899. Additionally, the system can handle up to 10 MV (Multistate Value) objects, specifically from MV-0 through MV-9.
A total of up to 10 Modbus slave devices, such as the TR50, TC300, and DALI, can be mapped directly to these allocated registers, enabling flexible and scalable integration of multiple devices into the controller. This feature ensures enhanced connectivity and functionality for diverse HVAC applications.
The performance of Modbus will depend on the baud rate configuration and how long the Modbus server device takes to respond.
For example, if the Modbus server responds fast and immediately, it will take 15 milliseconds to read one register with a baud rate of 9600, thus 64 registers can be read every 1 second if the poll rate is configured as 1 second.
If more registers are configured then for each register read time will take more than 1 second. For example, if 128 registers are configured to be polled every 1 second with a baud rate of 9600, then 128 registers will get read every 2 seconds due to baud rate throughout limitation. In such case increasing 9600 to 19200 will speed up read periodicity to 1 second.
Similarly, for 200 registers polled every 1 second ideal baud rate configured should be 38400.
Modbus Configuration:

Configuration Parameter
Enable Modbus Max retry count
NR holdoff time
Modbus baud rate Modbus parity

Fig. 39 Modbus Configuration Table 30 Modbus Configuration

Values

Description

Default

0-9 1-60 min

Enables for a Modbus serial network.

YES

Specifies the maximum number of retries that the VLC controller will use when attempting to talk to Modbus Slave Devices

Specifies the time in minutes the VLC controller will wait after

determining a Modbus device is offline before trying to talk to it

again.

Specifies the baud rate for the Modbus serial network

9600

Specifies the parity to be use on the Modbus serial network

Even

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Configuration Parameter
Modbus stop bits Max Registers per Message

Values 1-7

Description

Default

Specifies the number of stop bits to use on the Modbus serial network

One

Instead of reading one register per message user has the previlage to read max of 7 registers per message.

MRPM Configuration:
The present values for input registers are getting reset to zero when MRPM is configured more than 7 by user in DCF.
When the MRPM (Maximum Registers Per Message) is set to a value greater than 1, the controller optimizes read operations by grouping consecutive registers into a single request. For instance, if MRPM is set to 3 and the Modbus CSV file defines consecutive registers for a slave, the controller will attempt to combine three consecutive registers into one read request to that slave.
However, when MRPM exceeds 1, users must ensure that all configured registers for a slave in the CSV file are valid. If any register is invalid, it could cause the entire read request to fail, even for valid registers.
For Example:

SKU TR50-5D TR50-5N TR50-3D TR50-3N TR50-5D-U TR50-3D-U

Available Parameters Temperature, Humidity, CO2, PM2.5 and TVOC Temperature, Humidity, CO2, PM2.5 and TVOC Temperature, Humidity and CO2 Temperature, Humidity and CO2 Temperature, Humidity, CO2, PM2.5 and TVOC Temperature, Humidity and CO2

Reg type

Addr

Name

Input 1 Input 2 Input 3 Input 4
Input 5

Temperature
Humidity CO2 Particulates PM2.5
TVOC

Modbus Mapping Registers

Parameters Applicable on
SKUs

Type/ Unit

Default Unit

3N/3D/5N/5D

int 16

3N/3D/5N/5D 3N/3D/5N/5D
5N/5D

int 16 int 16
int 16

% RH ppm ug/m3

5N/5D

int 16 ppb

Bits Num
16 16 16 16
16

Range
32-122 oF 0-50 oC 0-100 0-9999 0-5000 8-2820 ppb 16-5640 ug/m3

Scale
0.1 0.1 0.1 1 1

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Consider a scenario where MRPM is set to 4, and the CSV file for a TR50-5D IAQ Sensor device includes the following:

Slave Address 1 1 1 1 1

Type
AV AV AV AV AV

Inst
800 801 802 803 804

Gateway String
I,3,2,*0.1 I,3,3,*0.1 I,3,4 I,3,5 I,3,6

Name
Temperature Humidity CO2 Particulates PM2 TVOC

Descr
ZoneTemperature Humidity ZoneCO2 Particulates PM2 TVOC

R50-5D IAQ Sensor supports all the parameters configured in the csv file (Temperature, Humidity, and CO2, PM 2.5, TVOC) and there is will be no issue when reading the parameters from the sensors.
If the user configures MRPM as 4 and uses the same CSV file with a controller connected to the TR50-3N IAQ Sensor, which supports only three sensors: Temperature, Humidity, and CO2, the controller will attempt to read Temperature, Humidity, CO2, and PM2 in a single request. Since the PM2 sensor is not available in the 3N model, the TR50-3N will reject the request, leading to a failure to read Temperature, Humidity, and CO2 as well.

Sending Device Mapping CSV file to VLC Device
1. Copy the CSV file to the DDC folder (typically C:\Alerton\Compass\2.0\<my REP>\<my JOB>\DDC). 2. Open Compass Device Manager and double click the particular VLC model.

Fig. 40 Compass device manager 3. On the Add/Edit Device Profile dialog select the Preferences Tab.

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Fig. 41 Preference 50

Alerton Unitary Controller - Installation and Operations Guide 4. Under Preferences, click on the CSV application Browser and select the required CSV file which need to be
uploaded.
Fig. 42 CSV file selection 5. Click OK, and navigate to Compass device manager page. 6. Select the particular VLC model and send the Modbus Application.

Fig. 43 Modbus application

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Point Mapping CSV File Format
Refer to the below mentioned TR50 Modbus Register details, using these, CSV files can be created.

Category Disp Values Disp Values Disp Values Disp Values Disp Values Disp Values Disp Values Disp Values Disp Values Disp Values
Disp Values

RegType Input Input Input Input Input Input Input Input Input Input
Input

Setup/ Runtime Runtime Runtime Runtime Runtime Runtime Runtime Runtime Runtime Runtime Runtime
Runtime

Addr

Dir

NonVolatile
V V V V

Name

SKU

Temperature

3N/3D/5N/ 5D

Humidity CO2
Particular PM2.5

3N/3D/5N/ 5D
3N/3D/5N/ 5D
5N/5D

Typ/ Unit int16 int16 int16 int16

TVOC

5N/5D

int16

Particular PM1

5N/5D

int16

Particular PM10

5N/5D

int16

Air quality score

3N/3D/5N/ 5D

int16

TAG Identifier 3N/3D/5N/

Data

int16

Host Firmware version

3N/3D/5N/ 5D

int16

BLE Firmware version

3N/3D/5N/ 5D

int16

Default Unit oF % RH ppm ug/m3 ppb ug/m3 ug/m3 signed string
signed/int32
signed/int32

Bits Num
16 16 16 16 16 16 16 16 64 32
32

Range 32-122 oF 0-50 oC
0-100 0-9999 0-5000 8-2820 ppb 16-5640 ug/m3 0-5000 0-5000 0-100 SS-TR50 00 00 00 01 99 99 99 99 00 00 00 01 99 99 99 99

Scale 0.1 0.1 0.1 1 1 1 1 1 -
-

Default

The format for creating and mapping the VLC device to Modbus Registers is as follows:

Slave Address

Type

Inst

Descr

Name

Units

Gateway String

Poll Int

COV Incr

Enumerations

CFA

800

Temperature

I,3,1,*0.1

801

Humidity

I,3,2,*0.1

802

CO2

I,3,3

803

cfgLedRing Brightness

I,4,3001

807

Particulates PM

I,3,4

808

TVOC

I,3,5

809

ParticulatesPM1

I,3,14

810

BLEFirmwareVersion

I,3,98

811

BLEFirmwareUpdateStatus

I,3,115

800

TempOutOfRange

O,4,2200

1: For normal 2: For offnormal

801

HumiOutOf-Range

O,4,2201

1: For normal 2: For offnormal

802

CO2Out-OfRange

O,4,2202

1: For normal

2:For high limit

3:For high high limit

803

PM25OutOf-Range

O,4,2203

1: For normal

2:For high limit

3:For high high limit

804

TVOCOutOf-Range

O,4,2204

1: For normal

2:For high limit

3:For high high limit

805

AQILevel

O,4,2205

1 = For normal

2 = For Moderate limit

3 = For Unhelthy limit

800

cfgTemperature-Unit

O,0,4000

801

cfgLEDAndLCDEnable

O,0,4020

802

cfgModbusAuto-Baudrate Enable

O,0,5000

803

cfgModbusFrameCntClear

O,0,5001

804

cfgLocalDetectionEnable

O,0,5040

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Type: This is the BACnet Point type in the VLC device to which the Modbus Register will get mapped (options are AV, BV,MV). Inst: This is the BACnet Point instance in the VLC device to which the Modbus Register will get mapped. Gateway String: This is the Mapping to the Modbus Register. NOTE: Gateway String DOES NOT contain Node (Slave), address. Name: This is the BACnet Point Name. Descr: This is the BACnet Point Description. Units: This is the BACnet Point Units. Poll Int: This is the interval at which the Modbus Register will get polled on the Modbus Network. This can be set individually on a point by point basis, or if set to 0, it will use the Default Poll Interval defined for the VLC device (set in Device Mapping file). NOTE: There are many items that determine the correct Polling Interval (Baud rate, number of devices and number of points per device). Starting with higher (slower) values is recommended. COV Incr: This is the BACnet Change of Value (COV), Increment for the Point. This only applies for Analog points and is used for BACnet COV Notifications (see BACnet COV). Enumerations: This is a list of Enumerations (and their associated State Text values), for mapping Modbus Register values to/from BACnet Multi-State points. If there is a Modbus Register that represents a set of specific States, you can define an enumeration for each state that will be shown in the BACnet multi-state point. NOTE: If a Modbus Register returns a value that not match a defined enumeration, the multi-state point will remain at the last read state and change to a reliability of "Configuration Error".
Sending Point Mapping CSV to VLC Device
1. Use Unitary IP Builder tool and the instructions within the tool to create VLC Modbus and related files and activities.
Fig. 44 Modbus Application 2. Give the required Device Instance, Gateway strings, Point Type values and save the Modbus application in DDC
folder. 3. Open Compass Device Manager. 4. On the Add/Edit Device Profile dialog select the Preferences Tab. 5. On the Preferences Tab, click the "Browse..." button in the Application section. 6. Select the Point Mapping file with the same Device Instance you created above and click OK. 7. From the Main Device Manager dialog highlight Device Instance and click "Send...". 8. On the Send Data from Disk to Device(s) dialog select the "DDC or CSV" option, and then click Send.

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Syslog
Syslog is a standard protocol to send system log messages from the controller to a server, allowing the admin to collect and analyze logs from various network devices in a single location for monitoring, troubleshooting, and security analysis. Syslog is used to prevent the cyber attack. For example, if someone is trying to access the controller from a third-party tool then the Syslog feature will capture if there is any application change in the controller, trying to login via BLE, or trying to access the controller with the wrong Passcode. These messages are captured in the Syslog server. Syslog Configuration: Syslog Configuration enables the audit logging feature via an audit logging server. Whenever an audit event happens, the controller will send the information to the Syslog server. To capture the audit logging event in the external Syslog server, run a Syslog server on the PC. Enable the IP address, either IPv4 or IPv6, in the controller. If the controller is in IPv4, then only IPv4 will work. If the controller is in IPv6, then only IPv6 will work. If the controller is already working on IPv4, then enable Syslog IPv4 as YES. Once the IP address is enabled, mention the UDP port number. The standard UDP port number is 514. If the user wants to change the port number, then use the same port number mentioned on the server side. This is the basic configuration to enable the Syslog server. Once this configuration is done, the audit logging events will be pushed to the Syslog server. Example: Bluetooth connection, Bluetooth login failure Below are the details about the logs that are supported by Syslog server:
Fig. 45 Logs supported by Syslog server Syslog server implementation is followed by RFC standard 5424. Syslog server running on a PC example, Syslog watcher Manager.

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Fig. 46 Syslog Configuration 54

Alerton Unitary Controller - Installation and Operations Guide

Table 31 Syslog Configuration

Configuration Parameter

Values

IPv4

Enable Syslog

Y/N

Syslog server IP Address

Syslog server UPD port

IPv6

Enable Syslog

Y/N

Manual IPv6 address

Manual IPv6 prefix bits Syslog server UPD port

Description

Default

Enable/Disable the IPv4 Syslog Protocol

IP address input by default configuration was selected above 192.168.1.212

Specifies the UDP Port number to be used by BACnet/IPv4 514

Enable/Disable the IPv6 Syslog Protocol
IPv6 address input if manual IPv6 address configuration was selected above Manual entry for IPv6 network prefix Specifies the UDP Port number to be used by BACnet/IPv6

Y 2001::b53d:16c 3:a748:5f04 64 514

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BLE Settings
The controllers that support BLE can be used to configure the BLE settings using the following steps. As part of BLE settings, the user can enable/disable the BLE, and set a Passcode within the range that the Passcode is valid for the BLE connection. This Passcode is used by the mobile application to log into the controller.
1. From the Device Manager, select the Controller, and click Edit. 2. On the Capabilities tab, select Supports Bluetooth for BLE controllers.
Fig. 47 BLE Supports 3. From the Device Manager, Select Controllers and Go to Advanced and then select Set BLE PassCode.
NOTE: From the Compass Device Manager, the user can select a Controller in bulk or a single.

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Fig. 48 BLE Settings 56

Alerton Unitary Controller - Installation and Operations Guide 4. Before enabling or disabling the Bluetooth, a Time sync is required.

5. From Push Bluetooth Setting, Enable the Bluetooth, Select Set BLE Pass Code. Choose the Start Date and End Date. Set Pass Code and Click Send.

Fig. 49 Push Bluetooth Settings
NOTE: From the Start Date, set the Pass Code End Date to the next day. For example; Start Date - 21/08/2024, End Date - 22/08/2024.
If the Passcode expires or has expired by the end date, the user must perform the operation from step 3.

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Configuration Parameter
Bluetooth Set BLE Pass Code Day of starting validity password Last day of validity password BLE Pass Code

Values 11-06-2024
11-06-2024 -

Table 32 BLE Configuration
Description Enable or Disable Enable or Disable -
8 number characters

Default
Disable None

NOTE:
The correct time should be set in the controller using time sync from Compass before setting the BLE PIN. For more information about time sync, refer to Compass 2.2.3 Installation and Upgrade Guide 31-00314-05.

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Configuring all Inputs and Outputs (Templates)
Configuring the I/O for the VLC controller is different from other Alerton products. Please be sure to read through this section in its entirety. The Alerton/Standard templates are used for configuring the I/O of the VLC controllers. Follow the below steps for navigating to the VLC configuration page:
1. From the Compass, Click Device Manager.
Fig. 50 Compass page 2. Select the required VLC controller from the device manager list and Press F12.

Fig. 51 Device Manager 59

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Alerton Unitary Controller - Installation and Operations Guide 3. It displays the device properties of the VLC8u8-IP-BLE controller. Navigate to the left and click VAV-IP/VLC IP.

Fig. 52 VLC Configuration Page 4. From the Device Properties, Select VLC-8u8 or VLC-16u8.

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Fig. 53 Device Properties 60

Alerton Unitary Controller - Installation and Operations Guide 5. Click the UIO Configuration (AI/BI) and UIO Configuration (AO/BO) on the VLC top display.
Fig. 54 VLC Top Display NOTE: On the primary top display for the Unitary Controller the user can access to all related device templates (i.e., VLC Parameters, AVs, BVs, Alarms, Trendlogs etc.) for configuring the Unitary Controller. NOTE: The Hardware mode and Data Presentation mode (AI only) must be selected from the input configuration screen.

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Alerton Unitary Controller - Installation and Operations Guide 6. Clicking on Hardware Mode brings you to the I/O configuration screen Input/Output (Outputs) for the Unitary Controller.
Fig. 55 Unitary Hardware Mode I/O Configuration (Outputs) NOTE: The usage of the UIO as an output is indicated by an Unknown Objects. 7. Clicking on Hardware Mode brings you to the I/O configuration screen Input/Output (Inputs) for the Unitary Controller.

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Fig. 56 Unitary Hardware Mode I/O Configuration (Inputs) 62

Alerton Unitary Controller - Installation and Operations Guide 8. Clicking on Inputs/Outputs Mode, navigates to the Unitary Device Object and Description screen.

Fig. 57 Unitary Device Object and Description
Inputs
Device Units
A setting option of English or Metric that determines the scaling of the input and the input units. Example: (°F) for English and (°C) for Metric.

Fig. 58 Device Units 63

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Microset Detection Mode
There are 4 options available in Microset Detection Mode: (1) Reserved, (2) Auto Detect, (3) Always Connected, (4) Disabled. (1) Reserved: Reserved is for future use. Controller won't accept this value. (2) Auto detect: (same as Microset AutoDetect = enabled in DDC headers) - this will poll every 12 seconds to see if a Microset is present.
NOTE: For steady green status LED indication, Microset detection mode=Auto Detect is required. The only exception is if the Res(PB/Pulse)/10k Therm type is used, in which case "disabled" mode should be selected.
(3) Always Connected: (new setting) Set if a Microset is present. This setting will switch AI-0 to be a temperature sensor and will attempt to talk to the sensor right away. This eliminates the state of power-up where the Microset hasn't yet been detected and odd numbers are displayed. (4) Disabled: Users can set this option to prevent the "Status LED" from flashing Red when the Microset is disconnected from the controller. When this option is enabled, the "Status LED" will display green as long as no other active alarms exist.

Fig. 59 Microset detection mode
NOTE: For MicroTouch configurations using Res(PB/Pulse)/10k Therm type, the jumper cannot be used and there is no option to use FST.
For MicroTouch configurations using Res(PB/Pulse)/10k Thermistor type, the option to use the after hours mode with button press is lost.

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Hardware Input Mode
Here the hardware mode of physical terminals can be set as analog input, binary input. The Universal Input (UIO) terminals on the VLC are input and can be set up for resistance, push-button, voltage (0-10 V), or current (0-20 mA). Terminal IN0/MSET on the VLC is the only terminal to accept a Microtouch or Microset for input. Terminal IN0 on VLC is the only terminal that cannot be set for pulse input. All other Universal Input Terminals can be configured for pulse input.
Fig. 60 Hardware input mode NOTE: The UIO present value will be retained if the user changes the hardware mode to some other type and reverts to the previous configuration (For example - If UIO-2 is configured as "Pulse Totalizer" and the present value is 34 and if the user now changes UIO-2 to AO and then reverts to "Pulse totalizer" again after some time, the present value is retained at 34 and continues from that point instead of starting from 0).

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Data Presentation Mode
Defines how the input data is presented under Input Value for analog inputs. The default is counts like other VLCs but can be set to several other possible modes to provide a more user-friendly view of the input data reading. Based on this setting, under the Input Values for Input Scaling, the low and high values will display the proper engineering unit. For example, if the input is set to a resistance input, and the data presentation mode is set to engineering units, the input values will display in Ohms. Likewise, if the input is set to voltage, setting the data presentation mode again to engineering units, the Input Values would be displayed as Volts.
Fig. 61 Data Presentation Mode NOTE: The unknown objects listed indicates that the UIO is being used as an output.

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Pulse Value
Pulse value is a configuration parameter when using a pulse input, this setting will provide the value for every pulse. For example, if the hardware mode is set to pulse totalizer it will count the number of pulses and multiply it against the pulse value. If a pulse value is set to 12 to indicate 12 gallons used every time it pulses, the totalizer will show how many gallons have been used over the total number of pulses counted.
Pulse Time Base
Pulse Time Base is used as a configuration parameter when using a pulse input of consumption rate. The pulse time base is indicated in seconds. In conjunction with pulse value, using the gallons example from above, a time interval can be applied. For example, if set to 60, every pulse will indicate gallons per minute, if set to 1, every pulse will indicate gallons per second.
Fig. 62 Pulse Value and Time Base

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Input Scaling
All inputs can be scaled via a 2-point scaling mechanism by defining Input Value Low (X1), Input Value High (X2), Output Value Low (Y1), and Output Value High (Y2). The default is X1=0, X2=1, Y1=0, Y2=1. For example, an Analog Input (AI) is set to voltage (0-10 V) to measure inches water column and that setting is -0.5 to 1.5 you would set the input low value to 0, input high value to 10, then the output low value to -0.5 and the output high to 1.5 the AI is now displaying inches water column. Another example, if a temperature reading is reading a degree high, scaling could be set up to adjust the output value reading set the output value low to -1 and output value high to 0, the output of the temperature reading should read 1 degree lower.
Fig. 63 Input scaling

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Object Units
The object units display the desired units for an analog input present value. For example, if set to Liters, the values will display as Liters in the unit.
Fig. 64 Analog inputs units

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Outputs
Hardware Mode
Universal Input / Output (UIO) Terminals in addition to the input modes supported by as noted above, can also support analog output and binary output. For more information on this BO type, see the section below on Binary Outputs.
NOTE: The Present Value remains for some UIOs BACnet objects regardless of the hardware mode (specifically AOs and BOs). It's recommended to set present value to 0 prior to changing hardware mode.
Output Scaling
Like input scaling, outputs are scaled via a 2-point scaling mechanism as well. For example, if we set Input Value Low (X1) to 0, Input Value High (X2) to 100, and then Output Value Low (Y1) to 0 and Output Value High (Y2) to 100, as we command the AO from 0 to 100 percent DDC signal, it will take the output value and scale it between 2 and 10 VDC. So, if outputting a current output, it'll be between 4 and 20 milliamps. Outputs can be scaled however you want depending on the output type and range.

Fig. 65 Output scaling
NOTE: The Hardware Status (HW Status) section values are calculated after all scaling and has been applied on the controller. This Output Scaling feature removes the need for using a two-point linear scaler in DDC.

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Out of Service (For Inputs and Outputs)
Out of Service is now supported directly for AIs/AOs and BIs/BOs and useful as a troubleshooting aid. For inputs, setting Out of Service to TRUE decouples the physical input from what the device is reading. The input now behaves like an AV while in this state. This helps test control routines without having to re-write DDC.
While in Out of Service mode, the Out of Service flag is set to TRUE, the Fault flag is set to TRUE, and Reliability will be set to OPEN LOOP. For example, if a temperature sensor goes bad. The AI can be placed into Out of Service mode and the present value can be manually set to a typical running value and everything will run as normal until you replace the temperature sensor. Once the sensor is replaced, return the point to normal operation and the sensed value will now be used.
Out of Service mode for outputs behaves much the same as inputs, the software is decoupled from the hardware and the hardware settings will remain at their last value and allow for testing of control routines.
NOTE: Ensure that any manually adjusted outputs are returned to a controlled state before returning to service as the adjusted outputs will be treated as the last value and controlled as such.
Placing an input or output into Out of Service Placing an input or output into Out of Service mode is simple but performed a couple of different ways because available screen real estate of the template.
For inputs on the VLC, you can use the context menu to navigate to the object Properties template using the following steps:
9. Locate the terminal of the point to be put into Out of Service mode, in the image below it is AI 2 which is configured as an Analog Input.
10. Right-click on the present value of that AI 2 to raise the context menu. 11. Select Displays and click Analog Input Template.

Fig. 66 Accessing the Analog Input Template 71

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Alerton Unitary Controller - Installation and Operations Guide 12. Navigate to Out_of_Service property and change False to True.

Fig. 67 AI 2 Object properties
To set the Out_of_Service property for the analog outputs, locate the output terminal AO 2 in Hardware status (HW), right-click to bring up the context menu, and navigate to the analog output Template to change the property from False to True.
Out_of_Service can also be Enabled/Disabled by selecting the "Out_of_Service" checkbox on the input and output configuration screens.
NOTE: Out_of_Service is used when there is failure in the field sensor.
Binary Outputs
These binary outputs are different in that they switch between the minimum and maximum output values or 0. Power for BO is only supplied by the base controller's power. Typical usage for the BOs is controlling pilot relays.
When the Universal Inputs Outputs are configured as Binary Outputs using the Hardware Mode selection box, the rest of the configuration is done in the Output Config Page.
In the Output Config Page, you can view the status of the Binary Output is Off (shown as a Zero ~ Green Animation dim) or On (shown as a One ~ Green Animation bright). Binary Outputs can be configured with Minimum Off and On times and the status of these timers is shown.
NOTE: The Minimum ON and OFF enforcement is done at Priority 6 in the priority array for the BO. As such, the present value should reflect this as long as the present value is not being commanded at a priority higher than 6 (in which case the Min ON/OFF would NOT be enforced).

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Alerton Unitary Controller - Installation and Operations Guide Also shown is priority array index value 8 which is commonly placed on templates for operator overrides to quickly determine if the point is in override or not.
Fig. 68 Universal I/O - Binary Output - Configuration and Scaling Output Scaling Identical to input scaling except rather than scaling the input value, the scaling here applies to the output values. It is a 2-point linear scale.

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NETWORK TOPOLOGIES

Ring topology can be a cost-effective solution for networks required to tolerate a single cable failure. To create a ring topology, only one Ethernet Switch (with RSTP support) and n cables are needed, where n is the total number of devices in the ring (including the Ethernet Switch).

Daisy Chain topology
There are two scenarios in daisy chain network topology:

(1) Daisy Chain Topology in IP CAT5/6 Network:

In the IP CAT5/6 network daisy chain connection type, if any of the devices in the network fails, the devices beyond the failed device also fail. For example, there are 10 devices in a network, and device number 1 is the client, connected to device number 2, and device number 2 is connected to device number 3, and so on. If the device 5 fails to function, device 6, 7, 8, 9, and 10 also fails to communicate with the client device.

Supervisor/

Daisy Chain Topology

Web Browser

Ethernet

Switch

Fig. 69 IP CAT5/6 Daisy chain topology

(2) Daisy Chain Topology in IP T1L Network:
Daisy-chaining IP T1L Unitary controllers offer a high level of network resiliency, even if case of device failure. As an example, if one controller in the network fails, the device beyond the failed device should be able to communicate with the other functional devices. Depending on the cable type and assuming the distance between functional nodes does not exceed the maximum stated above, the maximum number of offline IP T1L devices on the bus varies between 2 and 10 for daisy-chaining to remain functional.
Assuming that for the cable type used and based on the distance between functional devices, the fail-safe daisy-chaining stops to work beyond 2 offline controllers, then the devices downstream the failed controllers will not be able to communicate. For example, there are 10 devices in a network, and device number 1 is the client, connected to device number 2, and device number 2 is connected to device number 3, and so on. If the devices 5,6,7 fails to function, then the devices 8, 9, and 10 will also fail to communicate with the client device. This is because each controller in the power fail mode shortens the two IP T1L ports to make the connection resilient. However, shorting introduces internal resistance, which introduces attenuation to the signal. Thus, consecutive device failures add attenuation to the signal, such that the controller beyond it fails to communicate.
In a daisy chain configuration, A maximum of 100 Alerton Unitary Controllers can be connected in a daisy chain configuration; However, it is recommended that the number of controllers daisy chained be limited to 25-30.
T1L Daisy Chain Topology

Supervisor/ Web Browser

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Ethernet

Switch

T1L

Adapter

Fig. 70 IP T1L Daisy chain topology

Alerton Unitary Controller - Installation and Operations Guide

NOTE: Do not include RSTP enabled device in a non-RSTP daisy chain network. For example, if the user is using the controller in daisy chain network where RSTP is not enabled, the user should not include RSTP enabled devices in between the daisy chain network.
Ring network topology
If the Unitary Controller is connected in a redundant ring, it requires one spanning tree protocol-supported Ethernet switch as a part of the ring. This switch will connect the Unitary Controller to the IP network. The loop-free topology ensures that there aren't any broadcast storms or duplicate frame transmissions.
The maximum number of controllers connected in the ring network topology is 39 with one switch. The switch manages the connection of the loop.

NOTE:
It is recommended that the ROC update be performed on a batch size of 25 or lesser on an RSTP loop. Exceeding this limit in a single batch may cause some devices to enter NR state.

For optimal performance and bus traffic, it is recommended to limit the number of controllers to less than 39.

RSTP Ring Topology

Supervisor/ Web Browser

Multi Port (RSTP) Ethernet Switch
Fig. 71 IP CAT5/6 Ring Topology

Supervisor/ Web Browser

T1L RSTP Ring Topology

T1L

Adapter Adapter

Multi-Port (RSTP) Ethernet Switch
Fig. 72 IP T1L Ring Topology
NOTE: Due to RSTP inherent nature, once the Unitary Controller reboots there is a short period of time (less than 1 min) that the network topology requires to stabilize and assign proper port roles to each bridge. This characteristic may result in requiring an additional attempt at performing the ROC upgrade in RSTP topologies. Therefore, retry updating the device whenever this occurs. An alternative solution is to disable the bridge that creates the ring topology during the upgrade of the devices; the bridge can be re-enabled once the upgrade process is completed.
IMPORTANT: Proper configuration of gateway parameters on IP devices is crucial for stable network functionality. Incorrect settings can lead to devices becoming unresponsive and disconnected from the network. When a device is placed on a network with multiple subnets, avoid setting the Gateway Method to None. If set to Manual, ensure the gateway's IP matches your network's gateway.

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RSTP
Introduction
Rapid spanning Tree Protocol (RSTP) is a link layer network protocol that prevents bridge loops and flooding in local networks with redundant connections. To ensure a loop-free topology, RSTP disables some connections leaving a single active path between any two devices. These disabled connections can be used as a backup path in case of active connection failure. The former STP protocol has been superseded by RSTP Rapid Spanning Tree Protocol, which can respond to topology changes faster than STP.
RSTP works by first nominating a single device to be the Root Bridge. The nominated Root Bridge device acts as an anchor point for the system. It gives all other bridges a reference point for choosing the best path to open and connect for routing. Bridge Protocol Data Units (or BPDUs), are passed between bridge ports to communicate Root Bridge and local port information. BPDUs are key to managing the RSTP network as they are used to assign the Port Roles of all the ports on the Bridge devices. The RSTP resides on layer 2 (data link) of the OSI 7-layer model.
CACUATIOUNTION
When adding Unitary Controllers with RSTP turned on, ensure that the entire network runs RSTP. Please note that if any link in the existing network runs just STP, then RSTP functions as STP on that single link. RSTP is backward compatible with STP; however, If there exists just a single link running STP, then the advantage of "rapid convergence" offered by RSTP is lost, and the network will take longer to converge (possibly up to 50 seconds) whenever there is a change in network topology. The best choice is always to segregate different protocols.
Only enable RSTP in the Unitary controllers if there are redundant paths in the network. This has an impact on firmware download situations. When RSTP is enabled, all the switch ports are turned off when the Unitary Controller reboots. This will result in a temporary loss of connectivity when there are no redundant links in the network.
To ensure that the RSTP protocol functions correctly within each network, RSTP must be turned ON for all Unitary Controllers.

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RSTP Scenario

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Workstation Switch

Fig. 73 RSTP Scenario
In the above scenario, the lines represent additional connections that facilitate an alternative path (loop) for the Unitary Controllers labeled A through D. For example, if a device Alerton Unitary Controller A fails, then it will check for the closest controller as a second NIC in the Workstation; in addition, the connection between other two controllers will establish a new path for the controllers on the bottom row. By adding a second NIC to the Workstation, the Unitary Controller provides an alternative route if Alerton Unitary Controller A fails; without this connection, Unitary Controller a would be a risk. This simple network provides each controller with two different paths to the Workstation.
Root Bridge Features
1. Only one Root Bridge per network. 2. Automatically assigned to the device that has the lowest Bridge ID. 3. Bridge ID = Bridge Priority and MAC address (note the MAC address is used in the event of tied Bridge Priorities). 4. Bridge Priority is a configurable property, the default value is 49152 and is adjusted in increments of 4096. 5. MAC address is the NICs non-configurable MAC address.
Root Bridge Selection
There are both advantages and disadvantages if the Root Bridge is selected automatically. But, careful consideration must be taken when deciding which Ethernet Switch or Unitary Controller is the nominated device to take on this responsibility. The risk of allowing the devices to select the Root Bridge automatically is the potential for the Root Bridge to get assigned to a device that may need to be in the most logical location on the network. Making the switch or Unitary Controller closest to the Core Network connection, the Root Bridge would make the most sense. In addition, consider system redundancy and which device would be the most sensible backup in case the Root Bridge lost power; the whole point of RSTP is to facilitate redundancy.

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Root Bridge Example 1
In this example, Unitary Controller A takes on the responsibility of being the Root Bridge due to having a lower Root Priority (28672).

Root Bridge

Fig. 74 Root Bridge Example 1
Root Bridge Example 2
In this example, Unitary Controller B takes on the responsibility of the Root Bridge. With the Root Priority values equal, it compares MAC addresses and nominates the device with the lowest MAC address. This example highlights the impracticality of allowing the Unitary Controllers to negotiate amongst themselves which device is the Root Bridge.

Root Bridge

Root Bridge
VAV A (Priority = 32767, MAC = 00.60.2D.00.11.99)

VAV B (Priority = 32767, MAC = 00.60.2D.00.11.22)

VAV D (Priority = 32767, MAC = 00.60.2D.00.11.77)

VAV C (Priority = 32767, MAC = 00.60.2D.00.11.33)
Fig. 75 Root Bridge Example 2
Port Roles
Once the Root Bridge device is determined, the selected device will set its ports to the Designated Port Role. Designated Ports will generate and receive Bridge Protocol Data Unit (BPDU) messages. BPDU messages are essential to all devices that make up the RSTP network. BPDU messages contain the Root Bridge device Bridge ID and a Cost to Path parameter that accumulates the further a device is from the Root Bridge. BPDU message generation is repetitive and created within 2 seconds of each other. When receiving the BPDU messages, the Non-Root Bridge devices will assign the Root Port role to the port closest to the Root Bridge device; this is determined by comparing the Cost to Path values on each connected port. In the root bridge example 2, if the Unitary Controller B is declared the Root Bridge, its two populated ports default to Designated Ports. Via BPDU message, the Unitary controllers A and C will assign Root Port (RP) roles to the ports directly connected to Unitary Controller B. The remaining ports will default to the Designated Port (DP) role and generate their own BPDU messages. Unitary Controller D will compare the BPDU messages received on both ports to determine the most efficient path to the Root Bridge. Unitary Controller D could have a tied Cost to Path score for either of their ports as both have a valid path to the Root Bridge across an equal number of segments. If a Cost to Path is tied, the lowest Bridge ID will be nominated as the Root Port.

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Port Status
The Port Status provides feedback on what condition the port is. Ports will be in one of three states: 1. Learning: Port is mapping but not sending data yet. 2. Forwarding: Port is functioning correctly and sending data. 3. Discarding: Port is not sending data, typically indicating that a loop has been detected and the Port Role is set to Alternative Port.
RSTP Configuration

Fig. 76 RSTP Enable/Disable and set Bridge priority
The Ethernet and IP configuration contains:
4. Enable Rapid Spanning Tree Protocol. 5. RSTP Bridge Priority, select the Bridge Priority from the drop-down (values 0...61440), the Bridge Priority
values are set in blocks of 4096.
Table 33 RSTP Configuration

Menu Enable/ Disable Rapid Spanning Tree Protocol
Bridge Priority

Values Enable / Disable
0...61440

Description

Default

Enable / Disable RSTP

Disable

Controls which VLC node / Managed switch is the root bridge. The Bridge Priority is set in increments of 4096 between the ranges of 0 to 61440 (For example 4096, 8192, 12288...)

49152

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RSTP Diagnostics
The AV's 170000 to 170099 are reserved for RSTP Diagnostics regardless of whether RSTP has been enabled or not. Allocated Diagnostic AV's for the Unitary Controller are:

AVs AV 170000 AV 170001 AV 170002 AV 170003 AV 170004 AV 170005 AV 170006 AV 170007

Description
Spanning Tree type. RSTP is supported by VLC. Displays "RSTP" when enabled and displays "None" when RSTP is disabled.
Bridge ID Shows the Bridge priority followed by the MAC ID of the node. Example: 49152-00:60:2D:08:00:67 Bridge Priority Priority of the Bridge. Lower values result in the node being elected Root Bridge Root Bridge ID Bridge priority followed by the MAC ID of the Root Bridge of the entire network. Hello Time Maximum time in seconds between consecutive BPDU messages (also called the heartbeat time). BPDU messages may come in faster during network Syncing. Hello time is always 2 seconds. Max Age Max age of IP VLC devices are dynamic and can be auto configured to root bridge's Max age setting. Forward Delay Forward delay of IP VLC devices are dynamic and can be auto configured to root bridge's forward delay setting.
Number of Days, Hours, Minutes, and Seconds since the last Topology Change in the network. Topology change happens when non-Edge ports move to a forwarding state.

NOTE: Max age and Forward delay fields of VLC devices are dynamic and auto configures to root bridge's Max age and Forward delay setting.
For setups exceeding 20 devices in RSTP, users must configure the MaxAge and Forward-Delay as 40 and 21, respectively, on the root device. These settings will dynamically propagate to all connected VLC devices. If a VIP device is designated as the root device, it's advisable to limit connections to fewer than 20 devices to avoid conflicts with the default RSTP values configured in the VIP device, which could lead to connectivity issues.
Information for each port is represented in AVs and BVs:

AVs AV 170100 AV 170101 AV 170102
AV 170103

Description Spanning tree mode that the link works in. This can be "None" when RSTP is disabled or link is down "RSTP" when RSTP is enabled and the node connected is using RSTP or "STP" when RSTP is enabled and the node connected is using STP. Adapter. Always eth0. Port RSTP Role Role that the port is playing in the Rapid Spanning Tree network. "Disabled" Port is disabled. "Root" Port leads to the "Root Bridge". "Designated" Port connects other nodes to Root Bridge. "Alternate" Port discarding traffic. "N/A" Link is down. Port RSTP status Status of the port. "Learning" Port is learning MAC address, but not forwarding traffic. "Discarding" Port is discarding traffic as there is a loop in the network. "Forwarding" Port is sending and receiving traffic. "N/A" Link is down.

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AVs AV 170104

Description Neighbor Bridge ID The Bridge ID that this port is connected to. "N/A" Link is down "Bridge ID" The bridge ID of the neighbor sending traffic to this port is displayed. "Edge" Neighbor is not participating in the RSTP network.

BVs AV 170200 AV 170201 AV 170202
AV 170203
AV 170204 BV 170100

Device Templates and Graphics can be used to display Diagnostic AV data to assist with troubleshooting or managing the RSTP network. When RSTP is disabled the STP Type shows "None" which indicates that RSTP has been disabled in the Device Configuration.

Troubleshooting RSTP
If it is determined that some Unitary controllers are responding very slowly or not at all, check the steps listed below:
1. Check that all Unitary Controllers and other switches on the network have RSTP enabled. If using Diagnostic graphics (AV-170000) for each Unitary Controller the "Spanning Tree Type" should display "RSTP" if RSTP is enabled.
2. If any managed switch is used ensure that "RSTP" is enabled. 3. Verify that all the Unitary Controllers have the same Root Bridge ID (AV-170001). 4. Use AV-170007 to check the time elapsed since the last Topology change, use this as an indicator to see how
frequently the RSTP structure is changing. This indicates how long the network has been stable.

Tested Network Switches
RSTP network testing has been performed with the following managed switches:
· Cisco: 500 Series · D-Link: DGS-1010-28 · Netgear: GS108Tv2 and GS418TPP

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OBJECTS AND PROPERTY REFERENCES

Objects in the VLC8u8 Unitary Controllers

Object (Instance Range) AI (0) AI-1...8 AO-1...8 BI-1...8 BO-1...8 BO-21...24 BO-31...34 AV-0...89 AV-90...110 AV-130...169 AV-170-177 BV-0...63 BV-64...87 BV-99 BV-101 BV-130...177 BV-178...193 MV-0...10 MV-70 MV-71 MV-101...108 MV-201...208 AV-301...308 AV-351...358 AV-401...408 AV-451...458 AV-501...508 AV-531...538 AV-561...568 AV-601...608 AV-651...658 AV-701...708 AV-751...758 AV-800...899

Function
Analog input corresponding to physical UIO input IO0 (MSET Physical Input) Analog inputs corresponding to physical UIO inputs IO1 through IO8 Analog outputs corresponding to physical UIO outputs IO1 through IO8 Binary inputs corresponding to physical UIO inputs IO1 through IO8 Binary outputs corresponding to physical UIO outputs IO1 through IO8 Binary outputs corresponding to physical SPDT outputs DO1 through DO4 Binary outputs corresponding to physical SSR outputs SR1 through SR4 General Purpose DDC Microset DDC supports Microset, Microset-II, and Microset 4 General Purpose DDC without priority array General Purpose DDC WITH priority array General Purpose DDC Microset DDC supports Microset, Microset-II, and Microset 4 Disables 0.5°F deadband between AV-95 & AV-96 (ON = AV-96 can equal AV-95) Enable/Disable Bluetooth (Active = Bluetooth Enabled, Inactive = Bluetooth Disabled) General Purpose DDC without priority array General Purpose DDC WITH priority array General Purpose DDC Microset/Microtouch Detect Mode Device English/Metric UIO-1...8 Hardware Input Mode Selection AI-1...8 Data Presentation Mode AI-1...8 Input Scaling X1 AI-1...8 Input Scaling X2 AI-1...8 Input Scaling Y1 AI-1...8 Input Scaling Y2 AI-1...8 Pulse Value AI-1...8 Pulse Value (Time Base) AI-1...8 Pulse Value (Pulse Count) AO-1...8 Output Scaling X1 AO-1...8 Output Scaling X2 AO-1...8 Output Scaling Y1 AO-1...8 Output Scaling Y2 Reserved for Modbus Integration

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Object (Instance Range) BV-800...899 MV-800...809 Calendar Device
Event Enrollment(1) File (0) File (1024) File (2048)
Notification Class
Program 0 Program 1024 Schedule(1)
Zones(1)
Trendlogs(1)

Function
Reserved for Modbus Integration Reserved for Modbus Integration Describes a list of calendar dates, special event dates, holiday dates, and date ranges. Provides general information about a device. Defines an event and connects the occurrence of the event to the transmission of an event notification. Primarily used for alarms in Compass 2.2.0 Provides information about the real-time operating code (ROC) file. Provides information about the current DDC file. Provides information about the DDC trap file. Stores a list of available recipients for the distribution of event notifications (alarms, trend-log gathering). Stores information about the ROC/controller program. Stores program status information about the current DDC program. Controls designated properties by periodic schedule that may recur during a range of dates. Proprietary Alerton object containing the individual properties and references required to support the optimum start and tenant activity features of Compass 2.2.0 BACnet Trendlog objects.

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Objects in the VLC16u8 Unitary Controllers

Object (Instance Range) AI-0 AI-1...16 AO-1...16 BI-1...16 BO-1...16 BO-21...24 BO-31...34 AV-0...89 AV-90...110 AV-130...169 AV-170-177 BV-0...63 BV-64...87 BV-99 BV-101 BV-130...177 BV-178...193 MV-0...10 MV-70 MV-71 MV-101...116 MV-201...216 AV-301...316 AV-351...366 AV-401...416 AV-451...466 AV-501...516 AV-531...546 AV-561...576 AV-601...616 AV-651...666 AV-701...716 AV-751...766 AV-800...899 BV-800...899 MV-800...809 Calendar

Function Analog input corresponding to physical UIO input IO0 (MSET Physical Input) Analog inputs corresponding to physical UIO inputs IO1 through IO16 Analog outputs corresponding to physical UIO outputs IO1 through IO16 Binary inputs corresponding to physical UIO inputs IO1 through IO16 Binary outputs corresponding to physical UIO outputs IO1 through IO16 Binary outputs corresponding to physical SPDT outputs DO1 through DO4 Binary outputs corresponding to physical SSR outputs SR1 through SR4 General Purpose DDC Microset DDC supports Microset, Microset-II, and Microset 4 General Purpose DDC without priority array General Purpose DDC WITH priority array General Purpose DDC Microset DDC supports Microset, Microset-II, and Microset 4 Disables 0.5°F deadband between AV-95 & AV-96 (ON = AV-96 can equal AV-95) Enable/Disable Bluetooth (Active = Bluetooth Enabled, Inactive = Bluetooth Disabled) General Purpose DDC without priority array General Purpose DDC with priority array General Purpose DDC Microset/Microtouch Detect Mode Device Units Selection (English / Metrics) UIO-1...16 Hardware Input Mode Selection AI-1...16 Data Presentation Mode AI-1...16 Input Scaling X1 AI-1...16 Input Scaling X2 AI-1...16 Input Scaling Y1 AI-1...16 Input Scaling Y2 AI-1...16 Pulse Value AI-1...16 Pulse Value (Time Base) AI-1...16 Pulse Value (Pulse Count) AO-1...16 Output Scaling X1 AO-1...16 Output Scaling X2 AO-1...16 Output Scaling Y1 AO-1...16 Output Scaling Y2 Reserved for Modbus Integration Reserved for Modbus Integration Reserved for Modbus Integration Describes a list of calendar dates, special event dates, holiday dates, and date ranges.

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Object (Instance Range) Device Event Enrollment(1) File (0) File (1024) File (2048) Notification Class Program 0 Program 1024 Schedule(1)
Zones(1) Trendlogs(1)

Function Provides general information about a device. Defines an event and connects the occurrence of the event to the transmission of an event notification. Primarily used for alarms in Compass 2.2.0 Provides information about the real-time operating code (ROC) file. Provides information about the current DDC file. Provides information about the DDC trap file. Stores a list of available recipients for the distribution of event notifications (alarms, trendlog gathering). Stores information about the ROC/controller program. Stores program status information about the current DDC program. Controls designated properties by periodic schedule that may recur during a range of dates. Proprietary Alerton object containing the individual properties and references required to support the optimum start and tenant activity features of Compass 2.2.0 BACnet Trendlog objects.

(1) Event Enrollment (Alarms), Schedule, Zones, and Trendlogs support only internal points. External points cannot be referenced.

NOTE: It is not recommended to modify or add additional devices zone schedules under the Unitary Controller.

NOTE: If multiple notifications occur within a 1-second time frame, some COV notifications will be missed. Nevertheless, the DDC Engine will execute the DDC Logic within a time frame of 500 milliseconds which involves reading physical inputs (AI, BI, AO, BO, MV), processing the code, and writing to the outputs (AV, AO, BV, BO, MV).
During point data save operation, the user has to select "VLC calibration factors, box sizes, zero cutoffs" field in order to get proper commissioning report. Point data write operation for VLC parameters using "VLC calibration factors, box sizes, zero cutoffs" field will be ignored and will not update. Instead "Present values, priority arrays, relinquish defaults" field helps in writing VLC parameters.
AV-105 Microtouch lever value should always be set to zero until user has configured and connected Microtouch.

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Properties of VLC AI Objects

Property Description

Type

Yes

Character string

Object- Identifier

BACnet® Object Identifier

Object- Name

Yes

Character string

COV-Increment Yes

Real

Present- Value Yes

Real

Units

Yes

Enumerated

Status Properties

Event-State

Out-Of- Service Yes

Type Enumerated
Boolean

Status-Flags

Bit string

Properties of VLC AO Objects

Property

Object- Identifier

Object- Name

Yes

Object- Type

Present- Value Yes

Description

Yes

Status- Flags

Event- State

Type BACnet® Object Identifie Character string Enumerated Real Character string
Bit string
Enumerated

Reliability

[Yes] BACnet® Reliability

Out-Of- Service Yes

Boolean

Example
0 no-units

Remarks Initially set to something like "AI n. "Example: Occupied Set Point This property consists of the object- type property and the object instance, which is a numeric code that identifies the object of interest. Example: AI 1. Initially set to "AI n" CANNOT BE SET BLANK. Example: AI 1 If the present value changes by this amount or greater, then a change-of- value notification is sent to sub- scribed devices. The range is 3 x 1038 (six significant digits of resolution) Example: 76.4 Indicates the unit of measure, in BACnet® engineering units, that the AI is expressed in. Example: Deg F

Default Value "normal"
FALSE

Remarks
De-couples the Physical Input from the Logical Input, allowing the user to write to the presentvalue and reliability properties for Testing or Override. A four-position bit string that indicates the status of the AI. If status bit=1, then the status is TRUE.

Example AO n AO n AO AO n
"normal"
FALSE

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Property

Units

Yes

Priority- Array

Yes

RelinquishDefault

Yes

ReliabilityEvaluation- Inhibit

Yes

Property- List

Aler-InterfaceValue

Type

Example

Enumerated

no units

BACnet® Priority Array all null

Real

0.0

FALSE

Remarks Indicates the unit of measure, in BACnet® engineering units, that the AO is expressed in. Example: Volts. 16 index prioritized array of AO Commands. Value of the AO Present-Value when the PriorityArray is all NULL. Disables the Reliability reporting when set to OFF. List of all supported properties of an Object (except Object- Identifier, Object-Name, ObjectType, and Property-List, which are always required for ALL BACnet® Objects). Value of Physical AO.

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Properties of VLC AV Objects

Property Description

Type

Yes

Character string

Object- Identifier

BACnet® Object Identifier

Object- Name

Yes

Character string

Object- Type Property- List

Enumerated

Example AV

Remarks Initially set to "AV n". Example: Occupied Set Point. This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. Example: AV 1. Initially set to something like "AV n" CANNOT BE SET BLANK. Example: AV 001. Example: AV.

Core Properties COVIncrement Present- Value Priority- Array RelinquishDefault Units

Write Type

Yes

Real

Default Value 0

Yes

Real

Yes

BACnet® Priority Array all null

Yes

Real

Yes

Enumerated

no-units

Notes
If the present value changes by this amount or greater, then a change-of-value notification is sent to subscribed devices. The range is 3 x 1038 (six significant digits of resolution) Example: 76.4 Only present on user AVs with priority array (AV 170..177). Only present on user AVs with priority array (AV 170..177). Indicates the unit of measure, in BACnet® engineering units, that the AV is expressed in. Example: Deg F.

Status Properties Event-State
Status-Flags

Write Type Enumerated Bit String

Default Value

Remarks

A four-position bit string that indicates the status of the AV. If status bit=1, that status is TRUE.

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Properties of Microset VLC AV Objects

Property Description

Type

Yes

Character string

Object- Identifier

BACnet® Object Identifier

Object- Name

Yes

Character string

Object- Type Property- List

Enumerated

Example AV

Remarks These are initially set (upon reset to factory defaults) to the default values shown in the section on Microset point allocations but can be changed to other values thereafter. Example: Occupied Set Point. This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. Example: AV 1. These are initially set (upon reset to factory defaults) to the default values shown in the section on Microset point allocations but can be changed to other values thereafter, CAN NOT BE SET TO BLANK. Example: AV 1. Example: AV

Core Properties COVIncrement Present- Value

Write Type

Yes

Real

Yes

Real

Units

Yes

Enumerated

Default Value 0.0

Notes
If the present value changes by this amount or greater, then a change-of-value notification is sent to subscribed devices. The range is 3 x 1038 (six significant digits of resolution) Example: 76.4 Indicates the unit of measure, in BACnet® engineering units, that the AV is expressed in. Example: Deg F.

Status Properties Event-State
Status-Flags

Write Type Enumerated Bit String

Default Value

Remarks

A four-position bit string that indicates the status of the AV. If status bit=1, that status is TRUE.

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Properties of VLC BI Objects

Property

Object- Identifier

Object- Name Object- Type Present- Value Description Status-Flags Event-State

Yes
[Yes] Yes

Reliability

[Yes]

Out-Of- Service Yes

Polarity

Inactive- Text

Yes

Active-Text

Yes

Change-Of- StateTime

Change-Of- StateCount

Yes

Time-Of- StateCount- Reset

Elapsed-ActiveTime

Yes

Time-Of- ActiveTime-Reset

ReliabilityEvaluation- Inhibit

Yes

Property- List

Type BACnet® Object Identifier

Example BI n

BACnet® Object Identifier Character string BACnet® Object Type BACnet® Binary BV Character string
Bit string
Enumerated

BI n BI n BI
BI n
"normal"

BACnet® Reliability

Boolean

FALSE

BACnet® Polarity Character string Character string BACnet® Date Time Unsigned BACnet® Date Time Unsigned32 BACnet® Date Time Boolean

"normal" FALSE

Remarks This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. CANNOT BE SET BLANK. Example: Exh Fan. Example: BI Example: Active. Example: Exhaust Fan Status. A four-position bit string that indicates the status of the BI. If status bit=1, then the status is TRUE.
Normally is Read-Only and reports "no fault detected". Gets set to "Open Loop" (and is writable), when Out-of-Service is set to TRUE. Decouples the Physical Input from the Logical Input, allowing the user to write to the presentvalue and reliability properties for Testing or Override. Indicates the polarity of the BI (normal or reversed). Specifies Text that can be used when BI is Inactive. Specifies Text that can be used when BI is Inactive.
Indicates the Time of the last State Change.
Indicates the total number of State Changes (can be reset to 0).
Indicates the time of the last State Count reset.
Indicates the total Elapsed Active Time in seconds (can be reset to 0). Indicates the time of the last Elapsed Active Time reset.
Does nothing for BI.
List of all supported properties of an Object (except Object- Identifier, Object-Name, ObjectType, and Property-List, which are always required for ALL BACnet® Objects).

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Properties of VLC BO Objects

Property

Object- Identifier

Object- Name

Yes

Object- Type

Present- Value Yes

Description

Yes

Status-Flags

Event-State

Reliability

Yes

Out-Of- Service Yes

Polarity

Inactive- Text

Yes

Active-Text

Yes

Change-Of- StateTime

Change-Of- StateCount

Yes

Time-Of- StateCount- Reset

Elapsed-ActiveTime

Yes

Time-Of- ActiveTime-Reset

Minimum- OffTime

Yes

Minimum- OnTime

Yes

Priority- Array

Yes

RelinquishDefault

Yes

ReliabilityEvaluation-

Yes

Type BACnet® Object Identifier Character string BACnet® Object Type BACnet® Binary BV Character string
Bit string
Enumerated

Example BO n BO n BO
BO n
"normal"

BACnet® Reliability

Boolean

FALSE

BACnet® Polarity Character string Character string BACnet® Date Time Unsigned BACnet® Date Time Unsigned32 BACnet® Date Time

"normal"

Unsigned32

BACnet® Priority Array all null

BACnet® Binary BV

Inactive

Boolean

FALSE

Remarks This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. CANNOT BE SET BLANK. Example: Exh Fan.
Example: Active. Example: Circulation Pump Command. A four-position bit string that indicates the status of the BO. If status bit=1, then the status is TRUE.
Normally is Read-Only and reports "no fault detected". Gets set to "Open Loop" (and is writable), when Out-of-Service is set to TRUE. Decouples the Physical Input from the Logical Input, allowing the user to write to the presentvalue and reliability properties for Testing or Override. Indicates the polarity of the BO (normal or reversed). Specifies Text that can be used when BO is Inactive. Specifies Text that can be used when BO is Inactive. Indicates the Time of the last State Change. Indicates the total number of State Changes (can be reset to 0). Indicates the time of the last State Count reset. Indicates the total Elapsed Active Time in seconds (can be reset to 0). Indicates the time of the last Elapsed Active Time reset. Specifies the Minimum Time the BO will be held OFF when transitioning from ON to OFF (minimum Time Enforced at Priority 6 in priorityarray). Specifies the Minimum Time the BO will be held ON when transitioning from OFF to ON (minimum Time Enforced at Priority 6 in priority-array). 16 index prioritized array of BO Commands. Value of the BO Present-Value when the PriorityArray is all NULL. Disables the Reliability reporting when set to OFF.

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Property

Type

Property- List

Aler-Inter- faceValue

BACnet® Binary BV

Properties of VLC BV Objects

Example

Remarks List of all supported properties of an Object (except Object- Identifier, Object-Name, ObjectType and Property-List, which are always required for ALL BACnet® Objects).
Value of Physical BO.

Property

Description

Yes

Object- Identifier

Object- Name

Yes

Present-Value

Yes

Priority- Array

Yes

RelinquishDefault

Yes

Type Character string

Example BV n

BACnet® Object Identifier

Character string Enumerated

BV n Inactive

BACnet® Priority Array all null

REAL

Inactive

Remarks Initially set to "BV n". This property consists of the object-type property and the object instance, which is a numeric code that identifies the object of interest. Example: BV 1. Initially set to "BV n".
Only present on user BV with priority array (BV 40 and BV 178..193). Only present on user BV with priority array (BV 40 and BV 178..193).

Status Property Event-State
Status-Flags

Write Type Enumerated
Bit String

Default Value

Remarks
Example: Normal A four-position bit string that indicates the status of the object. If status bit=1, that status is TRUE. Example: In Alarm=0, Fault=0, Overridden=0, Out of Service=0

Property

Change-Of- State-Count

Yes

Change-Of- State-Time

Elapsed-Active-Time

Yes

Time-Of- Active- Time-Reset Time-Of- State- Count- Reset

Type

Example

Remarks Indicates the total number of State Changes (can be reset to 0). Indicates the Time of last State Change. Indicates the total Elapsed Active Time in seconds (can be reset to 0). Indicates the time of the last Elapsed Active Time reset. Indicates the time of the last State Count reset.

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Properties of Microset VLC BV Objects

Property

Description

Yes

Object- Identifier

Type Character string BACnet® Object Identifier

Object- Name

Yes

Character string

Object- Type Property- List

Enumerated

Example

Remarks These are initially set (upon reset to factory defaults) to the default values shown in the section on Microset point allocations but can be changed to other values thereafter.

These are initially set (upon reset to factory defaults) to the default values shown in the section on Microset point allocations but can be changed to other values thereafter. CAN- NOT BE BLANK. BV

Core Properties Present-Value

Write Type

Yes

Enumerated

Default Value Inactive

Remarks

Status Property Event-State
Status-Flags

Write Type Enumerated
Bit String

Default Value

Remarks

A four-position bit string that indicates the status of the object. If status bit=1, that status is TRUE. Example: In Alarm=0, Fault=0, Overridden=0, Out of Service=0

Properties of the VLC Device Objects

Property

apdu-segmenttimeout

Yes

Type Unsigned

apdu- timeout

applicationsoftware- version

daylight- savingsstatus

description

Unsigned
Character string Boolean Character string

Example 6000
6000

Remarks The time after transmission of a "segment" until the lack of a reply means it was assumed to be lost (in milliseconds, 1000 = 1 sec). Default = 6000. The time after transmission of an APDU until the lack of a reply means it was assumed to be lost. The APDU time-out value for this device in milliseconds (1000 = 1 sec). Default = 6000.

1.0.0

Indicates the ROC file version.

FALSE

Indicates whether daylight savings is in effect (TRUE) or not (FALSE). Not used at present.

Second floor Assigned by the user to de- scribe the device's controller function.

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Property

device-addressbinding

firmware- revision

local-date

local-time

location

max-apdu- lengthaccepted

model- name

number-of- apduretries

object- identifier

object-list
object- name object-type protocol- objecttypessupported protocol- servicessupported protocol- version segmentationsupported
system- status

utc-offset

vendor- identifier vendor- name

Type List Character string Date Time Character string Unsigned Character string Unsigned BACnet®_ Object_Identifier Array Character string Enumerated Bit string
Bit string Unsigned Enumerated
Enumerated
Signed Unsigned Character string

Example Remarks

Empty.

1.0.0 Sunday, 02/24/ 2002 10:15:56.00 am East Wing 1476 To be added 3 Device 4194303
Device 4194303 Device

Indicates the VLC boot code Version. Indicates date: day of the week, month/day/year. Writable through Time Sync. Indicates the time stored in the device. Writable through Time Sync. Indicates the physical location of the device. The maximum message packet size that the device can handle. Assigned by the vendor to indicate the device model. The number of times a message is resent after it is assumed to be lost. This property consists of the object-type property and the device instance, which is a numeric code that identifies the device of interest. An array whose elements list the object-identifier properties of all objects the device supports. No two devices are permitted to have the same object name.

An internally used bit string. Indicates which BACnet® object types reside in the device.

<Bit string> 18 segmented both Operational
0 18 Alerton

An internally used bit string. Indicates which BACnet® services the device can process. Indicates the version of the BACnet® protocol supported by the device. Device is capable of segmenting both transmission and reply messages. Other possible values are operational - read-only, download-required, download-in-progress, nonoperational. Coordinated Universal Time offset, in minutes. Not used at present. A unique code assigned by ASHRAE to the manufacturer, in this case, Alerton. Indicates the device manufacturer.

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Properties of VLC Event - Enrollment Objects

Property

acked- transitions Y

description

event- enable

event- parameters

event-state

event-type

notification-class

notify-type

object- identifier

object- name

object- propertyreference

object-type

Type

Example

Remarks

bit string

To-offnormal=1, To-fault=1, To -normal=1

Indicates whether the corresponding transitions have been acknowledged. A 1 indicates that the transition was acknowledged.

Character string Event enrollment 0

A description assigned to describe the object's function.

bit string

To-offnormal=1 , To-fault=1, To- normal=1

Indicates whether notifications are enabled for these event transition types. A 1 indicates that the transition is reported. Set in the Event Enrollment Editor at the operator workstation.

BACnet® Event Parameter

change_of_ bitstring

Enumerated NORMAL

Indicates the current state of the event.

Enumerated

CHANGE_OF_ BITSTRING

Indicates the type of event algorithm to be used to detect events.

Enumerated 1

Indicates the notification class to be used for event transitions. Set in the Event Enrollment Editor at the operator workstation.

Unsigned

alarm

Indicates whether the object is set up for alarms or events.

BACnet_Object_Identifier

Event-enrollment 0

Consists of the object-type property and the object in- stance, which is a numeric code that identifies the object of interest.

Character string Alarm

Assigned at the operator workstation.

Boolean

FALSE

Indicates whether the file has been saved for backup.

Event enrollment

Properties of VLC File Objects

Property

References

Adobe PDF Library 17.0