Intesis IN485UNI001I000 Universal IR Air Conditioner User Manual

User Manual for Intesis models including: IN485UNI001I000, IN485UNI001I100, IN485UNI001I000 Universal IR Air Conditioner, Universal IR Air Conditioner, Air Conditioner, Conditioner

User Manual IN485UNI001I100

Intesis, Universal, IR, Air, Conditioner, IN485UNI001I000, Modbus, hms, AC, interfaces

HMS Networks S.L.U.

Modbus RTU interface for infrared HVAC integration

Modbus RTU interface for infrared HVAC integration Compatible with IR-enabled AC units, from most brands USER MANUAL Issue date: 01/2024 v1.4 ENGLISH

File Info : application/pdf, 16 Pages, 833.73KB

User-Manual-IN485UNI001I100 Modbus r1.1

Modbus RTU interface for infrared HVAC integration
Compatible with IR-enabled AC units, from most brands
USER MANUAL
Issue date: 01/2024 v1.4 ENGLISH

Intesis® Modbus IR Universal AC

Important Information
Disclaimer
The information in this document is for informational purposes only. Please inform HMS Industrial Networks of any inaccuracies or omissions found in this document. HMS Industrial Networks disclaims any responsibility or liability for any errors that may appear in this document.
HMS Industrial Networks reserves the right to modify its products in line with its policy of continuous product development. The information in this document shall therefore not be construed as a commitment on the part of HMS Industrial Networks and is subject to change without notice. HMS Industrial Networks makes no commitment to update or keep current the information in this document.
The data, examples and illustrations found in this document are included for illustrative purposes and are only intended to help improve understanding of the functionality and handling of the product. In view of the wide range of possible applications of the product, and because of the many variables and requirements associated with any particular implementation, HMS Industrial Networks cannot assume responsibility or liability for actual use based on the data, examples or illustrations included in this document nor for any damages incurred during installation of the product. Those responsible for the use of the product must acquire sufficient knowledge in order to ensure that the product is used correctly in their specific application and that the application meets all performance and safety requirements including any applicable laws, regulations, codes and standards. Further, HMS Industrial Networks will under no circumstances assume liability or responsibility for any problems that may arise as a result from the use of undocumented features or functional side effects found outside the documented scope of the product. The effects caused by any direct or indirect use of such aspects of the product are undefined and may include e.g. compatibility issues and stability issues.

ORDER CODE IN485UNI001I100

LEGACY ORDER CODE IN485UNI001I000

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Intesis® Modbus IR Universal AC
Table of Contents
1 Presentation ............................................................................................................................................ 4 2 Quick setup.............................................................................................................................................. 4 3 Device Installation ................................................................................................................................... 5
Device emplacement and IR connection............................................................................................ 5 Connection to EIA-485 ....................................................................................................................... 6 Mini USB port ..................................................................................................................................... 6 4 Modbus Interface Specification ............................................................................................................... 7 Modbus physical layer ........................................................................................................................ 7 Modbus Registers .............................................................................................................................. 7 4.2.1 AC Control and status registers ............................................................................................... 7 4.2.2 AC startup registers ................................................................................................................. 9 4.2.3 Device Registers .................................................................................................................... 10 Implemented Modbus functions ....................................................................................................... 11 EIA-485 bus. Termination resistors and Fail-Safe Biasing mechanism ........................................... 11 5 Configuration settings ............................................................................................................................ 12 DIP-switch settings ........................................................................................................................... 12 Push button functionality .................................................................................................................. 12 Device LED indicator ........................................................................................................................ 13 Intesis® MAPS Config Tool.............................................................................................................. 14 6 Technical Specs .................................................................................................................................... 15 7 List of compatible AC indoor units. ........................................................................................................ 16

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Intesis® Modbus IR Universal AC
1 Presentation
Intesis gateway IN485UNI001I100 provides full integration of infrared-enabled air conditioners (AC) into Modbus RTU (EIA-485) networks. Compatible with most AC units equipped with an IR receiver

Main features
· Reduced dimensions and quick installation · Compatible with most AC brands, infrared enabled models · Wall or desktop (surface) mounted. Reduced dimensions for easy installation. · Direct connection to Modbus RTU over EIA-485 as a slave device · Up to 63 interfaces can be connected to the Modbus network · Auto-learn function for quick and easy setup of IR remote control · Mini USB port for connection to config software. It is also used for power supply · Power adapter included (EU, UK, USA and AU plugs supplied). · Simultaneous control of the AC unit both from Modbus and from IR remote controller.
2 Quick setup
1. Connect the interface via mini USB to the PC (cable not included, Mini-USB Type Mini B)
2. Configure your device using Intesis MAPS configuration software (Check Intesis MAPS User Manual for detailed description).
3. Install the interface in proximity of the AC indoor unit and connect it to the power supply. Check the interface location that best fits the installation (More at chapter 3. Device Installation ). Use parrot mode to verify the device location.
4. Connect RS485 to Modbus RTU network.
IMPORTANT: Power supply The interface is USB-powered. If not connected to a computer for setting or testing routines from the Config Tool, the USB port should be feeding 5 Volts DC from the power adapter (included)

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Intesis® Modbus IR Universal AC 3 Device Installation
This Intesis device is equipped with four infrared (IR) emitters and one IR receiver. Two emitters point at the front, two are 45º oriented, downwards, one for each side. The receiver gets feedback from the IR wireless remote controller, so the AC unit status is reported to the Modbus system.
Figure 3.1 Built-in IR emitters and IR receiver
Device emplacement and IR connection Intesis IN485UNI001I100 is intended for surface mount, either wall or desktop. Different emplacements are acceptable, as shown in figures below.
Figure 3.2 Wall mount.

Figure 3.3 Wall / desktop mount.

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Intesis® Modbus IR Universal AC
Case A: Placed side-by-side with the AC unit. The signal will travel from the Intesis device to the AC unit taking advantage of the rebounds on the floor or furniture present in the room.
Case B: Placed in front of the AC unit. The signal will travel from the Intesis device directly to the AC unit.
Case C: Below the AC unit. In this case, the signal will travel from the Intesis device to the AC unit taking advantage of the rebounds on the wall in front of it or other furniture.
Case D: Desktop mount. The signal will travel directly from the Intesis device to the AC unit

Figure 3.4 Built/in ports and sensors.
Connection to EIA-485
Notice the EIA-485 screw terminal block at the back of the device:
1 Signal ground Modbus: SGND 2 Data positive Modbus: A/+ 3 Data negative
Modbus: B/-
Figure 5: Block-Terminal details
Mini USB port
Use the USB cable to connect the device to a computer running config software, for setting and testing purposes, or to the power adapter (included), for regular operation

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Intesis® Modbus IR Universal AC

4 Modbus Interface Specification

Modbus physical layer
IN485UNI001I100 implements a Modbus RTU Slave interface, to be connected to an EIA-485 bus. It performs an 8N2 communication (8 data bits, no parity and 2 stop bit) with several available baud rates (2400 bps, 4800 bps, 9600 bps default-, 19200 bps, 38400 bps, 57600 bps, 76800 bps and 115200 bps). It also supports 8N1 communication (8 data bits, no parity and 1 stop bit).
NOTE: The gateway automatically detects the communication type (8N2 or 8N1) and sets itself accordingly. No action is needed.
Modbus Registers
All registers are type "16-bit unsigned Holding Register" and they use the standard Modbus big endian notation. the Modbus big endian notation.

4.2.1 AC Control and status registers
IN485UNI001I100 has the following Modbus Maps to control and monitor the AC unit. Consider that this table shows the maximum range of values available in every Modbus register and that it will be adapted to the IR control to simulate in every application.

R/W Description

R/W R/W R/W R/W R/W

AC unit On/Off
0: Off 1: On
AC unit Mode 1
0: Auto 1: Heat 2: Dry 3: Fan 4: Cool
AC unit Fan Speed 1
0: Auto 1: FS1 2: FS2 ... 9: FS9
AC unit Vertical Vane Position 1
0: Auto 1: Pos1 2: Pos2 ... 7: Pos7 10: Swing
AC unit Temperature Setpoint 2, 3
-32768 (Initialization value) 16..31 (ºC) (0 = undetermined) 61..86 (ºF) (0 = undetermined)

1 Available values will depend on the AC unit mode. Check the AC unit user manual to know the possible values for this register
2 Magnitude for this register can be adjusted to Celsius x 1ºC, Celsius x 10ºC (default) or Fahrenheit. 3 It is not possible turn to x10 the value shown in Fahrenheit.

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Intesis® Modbus IR Universal AC

R/W Description

R R/W R/W R/W
R/W
R/W R/W
R R R R R/W

AC unit Ambient Temperature 1¡Error! Marcador no definido., 2, 3
18..30 (ºC) (0 = undetermined) 64,4..86 (ºF) (0 = undetermined) 0x8000 No setpoint sent from the Remote controller
IN485UNI001I100 Disablement 4
0: IN485UNI001I100 enabled (Default value) 1: IN485UNI001I100 disabled
AC Remote Control Disablement 5
0: Remote Control enabled (Default value) 1: Remote Control disabled
AC unit Operation Time
0..65535 (hours). Counts the time the AC unit is in "On" state.
AC unit Horizontal Vane Position 1
0: Auto 1: Pos1 2: Pos2 ... 7: Pos7 10: Swing
AC unit Vertical Vane Pulse 1
1: Pulse
AC unit Horizontal Vane Pulse 1
1: Pulse
Relative humidity
0-100% relative huminity
Max. number of fan speeds
Maximum number of fan speeds available. AC max setpoint 1, 2, 3
-32768 (Initialization value)
Upper limit for setpoint setting AC min setpoint 1, 2, 3
-32768 (Initialization value)
Lower limit for setpoint setting
Parrot Mode
0: Not active 1: Active

4 This value is stored in non-volatile memory
© HMS Industrial Networks S.L.U. - All rights reserved This information is subject to change without notice

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Intesis® Modbus IR Universal AC

4.2.2 AC startup registers

1100

1101

1102

1103

1104

1105

1106

1107

R/W Description

R/W R/W R/W R/W R/W R/W
R/W

Reset operation at startup:
0: Don't send status to AC 1: Send status to AC
AC unit On/Off at startup
0: Off 1: On
AC unit Mode at startup 5
0: Auto 1: Heat 2: Dry 3: Fan 4: Cool
AC unit Fan Speed at startup 1
0: Auto 1: FS1 2: FS2 ... 9: FS9
AC unit Temperature Setpoint at startup 6,7,3
-32768 (Initialization value) 16..31 (ºC) (0 = undetermined)
61..86 (ºF) (0 = undetermined)
AC unit U/D Vane Position at startup 1
0: Auto 1: Pos1 2: Pos2 ... 7: Pos7 10: Swing
AC unit L/R Vane Position at startup 1
0: Auto 1: Pos1 2: Pos2 ... 7: Pos7 10: Swing

5 Available values will depend on the AC unit mode. Check the AC unit user manual to know the possible values for this register
6 Magnitude for this register can be adjusted to Celsius x 1ºC, Celsius x 10ºC (default) or Fahrenheit. 7 It is not possible turn to x10 the value shown in Fahrenheit.

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Intesis® Modbus IR Universal AC

4.2.3 Device Registers
Register Address (protocol address)

100

203

204

205

202

203

206

207

R/W Description

Modbus RTU baud-rate

2400 bps

4800 bps

9600 bps (Default)

19200 bps

38400 bps

57600 bps

76800 bps

115200 bps

R R R R/W
R/W R R
R/W R/W
R
R

Modbus Slave Address
1..63

Device definition (device ID)

Software version

Block Periodic Sendings 8
0: Non-blocked (Default value)
1: Blocked

Reset device 1: Reset

IR Remote version

IR Remote code

RGB led criteria:
0: OFF 1: ON 2: Report only changes

RGB Led intensity. Values 1...5

AC unit Alarm Status
0: No alarm condition 1: Alarm condition

Error Code (IN485UNI001I100 errors)

0: No error present

Any other: device error:

Error value

Error MBS Description

65536

No error

-4

65532

Initialization value

-15

65521

Internal error

-16

65520

RCFWrongCRC error

8 If the register is configured as "0:Non-blocked", all commands received from Modbus will be sent to the AC system. If "1: Blocked", commands from Modbus will only be sent to the AC system if they differ from the previous value.

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Intesis® Modbus IR Universal AC
Implemented Modbus functions
IN485UNI001I100 implements the following standard Modbus functions: 3: Read Holding Registers 4: Read Input Registers 6: Write Single Register 16: Write Multiple Registers (Despite this function is allowed, the interface does not allow to write operations on more than 1 register with the same request, this means that length field should be always be 1 when this function is being used in case of writing)
EIA-485 bus. Termination resistors and Fail-Safe Biasing mechanism
EIA-485 bus requires a 120 terminator resistor at each end of the bus to avoid signal reflections. In order to prevent fail status detections by bus receivers when all the transmitters' outputs are in three-state (high impedance), it is also required a fail-safe biasing mechanism. This mechanism provides a safe status (a correct voltage level) in the bus when all the transmitters' outputs are in three-state. The Fail-Safe-Biasing mechanism is enabled by DIP-switch settings
Please check section 5.1 DIP-switch settings for details
The IN485UNI001I100 device includes an on-board terminator resistor of 120 that can be connected to the EIA-485 bus by using built-in DIP-switch block. Some Modbus RTU EIA-485 Master devices can provide also internal 120 terminator resistor and/or fail-safe biasing. Check the technical documentation of the Master devices connected to the EIA-485 network in each case.

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Intesis® Modbus IR Universal AC

5 Configuration settings

DIP-switch settings
To access the onboarded DIP-switch block, the enclosure must be opened by bending both frontal tabs (inserting a plane tool tip size <5 mm). This operation must be performed by qualified personnel only

DIP-switch

Description

EIA-485 bus without a termination resistor

Internal 120 termination resistor connected to EIA-485 bus

No bus polarization

Active bus polarization

Figure 5.8 Onboarded DIP-switch block

Push button functionality
The device is equipped with one push button which performs two different actions:

Action 1: AC ON&OFF

AC ON/OFF STATUS OFF OFF ON

User action 1 click 2 clicks
1 or 2 clicks

Device action ON+COOL+25ºC ON+HEAT+21ºC
OFF

When Parrot mode is active, switching ON&OFF the AC is not permitted from this button. Please, exit Parrot mode to enable AC ON&OFF.

Action 2: Parrot mode enable / disable

AC ON/OFF STATUS ON or OFF

User action 3 clicks

Device action Activate/deactivate Parrot mode

When Parrot mode is enabled, the device will simply emit every IR signal picked at by the receiver, acting as a repeater. Parrot mode is used for testing or troubleshooting to confirm the device location for AC control.

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Intesis® Modbus IR Universal AC

Device LED indicator
The device is equipped with one multicolor LED indicator. Different colors are used to report different operation modes and operation conditions, as described in following tables

Normal operation

LED COLOR READ BLUE BLUE YELLOW GREEN RED BLUE BLUE YELLOW GREEN

Blink freq / steady STEADY STEADY STEADY STEADY STEADY BLINK 3 times BLINK 3 times BLINK 3 times BLINK 3 times BLINK 3 times

Device informs... HEAT mode COOL mode DRY mode AUTO mode FAN mode Command received or sent during HEAT mode Command received or sent during COOL mode Command received or sent during DRY mode Command received or sent during AUTO mode Command received or sent during FAN mode

Parrot mode Parrot mode is a function to find the best device location for its normal operation.

LED COLOR
WHITE

Blink freq / steady Device informs...
0.5 s ON 0.5 s OFF Parrot mode ON

Auto-learn mode Autolearn is a function that allows to autoconfigure the native AC infrared remote controller in the IN485UNI001I100 device. This function can be enabled via Intesis Maps only, please, refer to Intesis Maps configuration manual for IN485UNI001I100 to use this function.

LED COLOR
WHITE

Blink freq / steady
STEADY

Device informs...
Device is ready to get an IR frame

Device connected via USB
LED COLOR
ORANGE
ORANGE MAGENTA CYAN

Blink freq / steady
STEADY
(low intensity)
STEADY
(high intensity)
0.5 s ON - 0.5 s OFF 1s ON - 1s OFF (x3)

Device informs...
USB link performed
Intesis Maps communication USB communication (FW download in progress) FW download finished

Error notification
LED COLOR RED

Blink freq / steady

Device informs...

Blinking (low intensity) RCF corruption

Check Intesis Maps configuration manual to know how to overcome this error.

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Intesis® Modbus IR Universal AC
Intesis® MAPS Config Tool
This interface in configured using Intesis Maps®. You can download this software for free in www.intesis.com. Please, review Intesis Maps IN485UNI001I100 user manual to learn how to configure the device using this software.

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Intesis® Modbus IR Universal AC

6 Technical Specs

Enclosure

Plastic, type PC (UL 94 V-0) Dimensions: 93 x 60 x 21 mm / 3.7" x 2.3" x 0.8" Color: Light Grey. NCS S 1002-B

Operation Temp

0°C to +60°C

Weight

55 g

Mounting Surface mount (wall or desktop).

Storage Temp

-20°C to +85°C

Operation humidity

5% to 95%, non-condensing

Terminal Wiring (low-voltage signals)

Per terminal: solid wires or stranded wires
(twisted or with shielded termination) 1 core: 0.25mm2... 1 mm2 2 cores: 0.25mm2... 0.75 mm2 3 cores: 0.25mm2... 0.75 mm2

Storage Temp

< 95%, non-condensing

EIA 485 USB port Buttons

1 x EIA485 3-pin plug-in screw terminal block: A, B, SG
1 x Mini-USB Type Mini B. Power consumption: max. 400mA @ 5 Vdc
1 x Button

Protection IP20 (IEC60529)

LED indicator

1 x external LED operational status

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Intesis® Modbus IR Universal AC
7 List of compatible AC indoor units.
This interface is compatible with almost every AC indoor unit with IR (infrared) control. Check if your AC unit is already integrated in this link.
If your AC unit or IR remote controller were not in the list, contact Intesis TS Team to confirm if the IR remote is already integrated or how to initiate the integration process.

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References

Microsoft Word para Microsoft 365