User Guide for neptronic models including: EVCB14N Series Modbus Communication Module, EVCB14N Series, Modbus Communication Module, Communication Module, Module

EVCB-Modbus Guide

Neptronic

EVCB Modbus

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EVCB14N-V508-Modbus Guide-210730-ESA
EVCB14N Series Modbus Communication Module User Guide

EVCB14NIT0S EVCB14NIT2S EVCB14NIT4S EVCB14NDT4S EVCB14NIT0SF EVCB14NIT4SF

(0 TRIACS / pressure independent) (2 TRIACS / pressure independent) (4 TRIACS / pressure independent) (4 TRIACS / pressure dependent) (0 TRIACS / pressure independent / with feedback) (4 TRIACS / pressure independent / with feedback)

EVCB14N-V508-Modbus Guide-210730-ESA

EVCB14N Series
Modbus Communication Module User Guide
Introduction
The EVCB14N Series Modbus Communication Module User Guide provides information for using Neptronic® communication feature. The controller uses Modbus communication protocol over serial line in the RTU mode and provides a Modbus network interface between client devices and Neptronic EVCB14N Series devices. The EVCB14N Series Modbus Guide assumes that you are familiar with Modbus terminology. The following are the requirements for Modbus:
· Data Model. The EVCB Modbus server data model uses only the Holding Registers table.
· Function Codes. The EVCB Modbus server supports a limited function codes subset comprising: o Read Holding Registers (0x03) o Write Single Register (0x06) o Write Multiple Registers (0x10)
· Exception Responses. The EVCB Modbus server supports the following exception codes: o Illegal data address o Illegal data value o Slave device busy
· Serial Line. The EVCB Modbus over serial line uses RTU transmission mode over a two-wire configuration RS485 (EIA/TIA-485 standard) physical layer. o The physical layer can use fixed baud rate selection or automatic baud rate detection (default) as per the Modbus Auto Baud Rate device menu item or holding register index 1. o The supported baud rates are 9600, 19200, 38400, and 57600. o The physical layer also supports variable parity control and stop bit configuration as per the Modbus Comport Config device menu item or holding register index 2. o In auto baud rate configuration, if the device detects only consecutive bad frames (2 or more) for one second with any given baud rate, it will reinitialize itself to the next baud rate.
· Addressing. The EVCB device only answers at the following address: o The device's unique address (1 to 246) that can be set through the device menu or through holding register index 0.

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EVCB14N Series
Modbus Communication Module User Guide

Holding Registers Table

Table Glossary

Name
W RO Unsigned Signed Bit String

Description
Writable Register Read Only Register For range of values from 0 to 65,535, unless otherwise specified For range of values from -32,768 to 32,767, unless otherwise specified For registers with multiple values using bit mask (example, flags)

Name
ASCII MSB LSB MSW LSW

Description
For registers containing ASCII (8-bit) characters Most Significant Byte Least Significant Byte Most Significant Word Least Significant Word

Holding Register Table

Register Index

Description

40000 Modbus Address and Product Type.

40001 MSTP Baud Rate.

40002 Modbus Slave Communication Port Configuration. 40003 Product Name (characters 8 & 7).

Data Type Unsigned Unsigned Scale 100
Unsigned ASCII

Range

MSB = Product type (e.g. 111 for EVCB) LSB = Modbus Address (e.g. 1-246)
0, 9600, 19200, 38400, or 57600 0 = Auto Baud Rate Detection Value/100 (e.g. 38400 baud = 384)
1= No parity, 2 Stop bits 2= Even parity, 1 stop bit 3= Odd parity, 1 stop bit

1 to 65,535

char 8: 0x53 = S

char 7: 0x00 =

40004 Product Name (characters 6 & 5).

40005 40006

Product Name (characters 4 & 3). Product Name (characters 2 & 1).

ASCII ASCII ASCII

1 to 65535 1 to 65535 1 to 65535

char 6: 0x49 = I char 4: 0x42 = B char 2: 0x45 = E

char 5: 0x34 = 4 char 3: 0x4E = N char 1: 0x56 = V

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Writable W W
W W W W W
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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40007 40008

Product actual firmware version. Product actual EEPROM version.

40009 System Status 1.

40010 System Status 2.
40011 Internal Temperature. 40012 External Temperature. 40013 Change Over Temperature.

Data Type Unsigned Unsigned
Bit String
Bit String
Unsigned Scale 100 Signed Scale 100 Signed Scale 100

Range
1 to 65535 (e.g. 410) 1 to 65535 (e.g. 203) [B0 ­ B11]: Reserved B12: CO2 alarm 0 = Normal; 1 = Alarm
B13: Pressure mode (actual status) 0 = Independent; 1 = Dependent
B14: Air Flow 0 = Normal; 1 = Error [B0-B11, B13-B14]: Reserved
B12: Alarm override 0 = Normal; 1 = Alarm 0 to 5000 Value x 100 (e.g. 23°C = 2300) -4000 to 10000 Value x 100 (e.g. 18°C = 1800) -4000 to 10000 Value x 100 (e.g. 18°C = 1800)

40014

Internal Humidity Internal humidity, reading of the integrated humidity sensor of TRLH or TRLGH/TDU (models with humidity sensor). If not available, the value will be fixed to 0x7FFF (32767)

40015 Input 3 reading, pressure sensor value (Not available on all models) 40016 Analog input 1 value.

Unsigned Scale 10
Unsigned Scale 10 Unsigned Scale 100

0 to 1000 Value x 10 (e.g. 45%RH = 450)
0 to 2500 Value x 10 (e.g. 10 Pa = 100) 0 to 1000 Value x 100 (e.g. 2 mV = 200)

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Writable RO RO
RO
RO RO RO RO RO RO RO
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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40017 40018 40019

Analog Input 2 value.
CO2 value in ppm If using TRLG or TRLG/TDU (models with CO2 sensor) and CO2 is in TRL mode, it is the sensor value in ppm. If using AI1 or AI2 and CO2 is set in Analog more, the reading is from the external sensor.
Air supply temperature.

40020 Control temperature.

40021 Heating demand for heating ramp 1.

40022 Cooling demand for cooling ramp 1.

40023 Temperature offset applied on internal temperature.

40024 Temperature offset applied on external temperature.

40025 Temperature setpoint used during the occupancy period of the day.

40026 Minimum temperature setpoint used during the day.

40027 Maximum temperature setpoint used during the day.

40028 Cooling setpoint during No Occupancy / Night Set Back

40029 Heating setpoint during No Occupancy / Night Set Back

Data Type
Unsigned Scale 100
Unsigned Scale 100
Signed Scale 100
Signed Scale 100
Unsigned Scale 10
Unsigned Scale 10
Signed Scale 100
Signed Scale 100
Unsigned Scale 10
Unsigned Scale 10
Unsigned Scale 10
Unsigned Scale 10
Unsigned Scale 10

Range
0 to 1000 Value x 100 (e.g. 3 mV = 300)
100 to reg 40098 Value x 100 (e.g. 5 ppm = 500)
-4000 to 10000 Value x 100 (e.g. 5°C = 500) -4000 to 10000 Value x 100 (e.g. 25°C = 2500) 0 to 1000 Value x 10 (e.g. 25% = 250) 0 to 1000 Value x 10 (e.g. 25% = 250) -500 to 500 Value x 100 (e.g. 0.5°C = 50) -500 to 500 Value x 100 (e.g. 0.5°C = 50) Range: 40026 to 40027 Value x 10 (e.g. 20°C = 200) Range: 100 to 40027 Value x 10 (e.g. 10°C = 100) Range: 40026 to 400 Value x 10 (e.g. 40°C = 400) Range: 40029 to 400 Value x 10 (e.g. 22°C = 220)
Range: 100 to 40028 Value x 10 (e.g. 16°C = 160)

Writable RO RO RO W RO RO W W W W W W W

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Register Index

Description

40030 Cooling demand for proportional band 1.

40031 Heating demand for proportional band 1.

40032 Cooling dead band for proportional band 1.

40033 Heating dead band for proportional band 1.

40034 Changeover temperature setpoint.

40035 40036 40037
40038 40039

Night setback override delay in minutes.
Integral time factor for heating in seconds.
Cooling anti-cycle delay: delay in minutes before activating or reactivating the cooling contact.
Floating time 1: Indicates the time in seconds required by the actuator to complete a 90° run.
Occupancy Delay Mode in minutes

40040 Cooling demand for cooling ramp 2.

40041 Proportional band for cooling ramp 2

40042 Dead band for cooling ramp 2.

40043 Heating demand for heating ramp 2.

40044 Proportional band for heating ramp 2.

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EVCB14N Series
Modbus Communication Module User Guide

Data Type

Range

Unsigned Scale 10
Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10 Unsigned Unsigned
Unsigned
Unsigned
Unsigned Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10
Unsigned Scale 10
Unsigned Scale 10

5 to 50 Value x 10 (e.g. 0.3°C = 3)
5 to 50 Value x 10 (e.g. 0.3°C = 3) 0 to 50 Value x 10 (e.g. 0.3°C = 3) 0 to 50 Value x 10 (e.g. 0.3°C = 3) 100 to 400 Value x 10 (e.g. 12°C = 120) 0 to 180 minutes 0 to 250 seconds
0 to 15 minutes
15 to 250 seconds
0 to 180 minutes 0 to 1000 % Value x 10 (e.g. 30% = 300) 5 to 50 Value x 10 (e.g. 0.2°C = 2) 0 to 50 Value x 10 (e.g. 0.2°C = 2)
0 to 1000 % Value x 10 (e.g. 30% = 300)
5 to 50 Value x 10 (e.g. 0.2°C = 2)

Writable
W
W W W W W W W W W RO W W
W W
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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

Data Type

Range

Writable

40045 Dead band for heating ramp 2.

Unsigned Scale 10

0 to 50 Value x 10 (e.g. 0.2°C = 2)

W

40046 Changeover demand for the VAV box.

Unsigned

0 to 1000 %

RO

Scale 10

Value x 10 (e.g. 30% = 300)

40047

Changeover proportional band: the range in which the controller modulates the cooling and heating output from 0 to 100%.

Unsigned Scale 10

5 to 50 Value x 10 (e.g. 0.2°C = 2)

W

40048

Changeover deadband: the range at which the controller takes no action when the temperature is above or below the setpoint.

Unsigned Scale 10

0 to 50 Value x 10 (e.g. 0.2°C = 2)

W

40049 AO1 min Vdc: minimum voltage of analog output 1.

Unsigned Scale 10

Range: 0 to reg. 40051 Value x 10 (e.g. 2 Volts = 20)

W

40050 AO2 min Vdc: minimum voltage of analog output 2.

Unsigned Scale 10

Range: 0 to reg. 40052 Value x 10 (e.g. 2 Volts = 20)

W

40051 AO1 max Vdc: maximum voltage of analog output 1.

Unsigned Scale 10

Range: reg. 40049 to 100 Value x 10 (e.g. 10 Volts = 100)

W

40052 AO2 max Vdc: maximum voltage of analog output 2.

Unsigned Scale 10

Range: reg. 40050 to 100 Value x 10 (e.g. 10 Volts = 100)

W

 = The minimum and maximum voltages correspond to 0 to 100% demand. The minimum voltage is always applied to the output. The maximum voltage is applied when the demand reaches 100%. For reheat applications, we recommend to leave the minimum voltage at 0Vdc to avoid heating when the demand is 0%.

40053 Time of numerical filter of delta pressure in seconds.

Unsigned

1 to 10 seconds

W

Not effective on all models.

40054 Factor of V=K*sqrt(dP), where dP = 1.

Unsigned

Range: 100 to 9995 CFM

W

Not effective on all models.

40055 Minimum air flow for cooling. Not effective on all models.

Unsigned

Range: 0 or (12.7%) Kfac to reg 40056 CFM

W

40056 Maximum air flow for cooling. Not effective on all models.

Unsigned

Range: reg 40055 to reg 40054 CFM

W

40057 Minimum air flow for heating. Not effective on all models.

Unsigned

Range: 0 or (12.7%) Kfac to reg 40058 CFM

W

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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40058 40059 40060 40061
40062

Maximum air flow for heating. Not effective on all models.
Integral time factor of air flow in minutes. Not effective on all models.
Actual air flow converted from delta pressure sensor. Not effective on all models.
Air flow calculated from system demand. Not effective on all models.
Configuration value for Air Flow Max used during airflow balancing sequence. Refer to EVCB-Airflow Balance Instructions. Not effective on all models.

40063 Analog output 1 value.

40064 Analog output 2 value.

40065 40066 40067 40068 40069 40070

Percentage of demand to close TRIAC output 1. Not available on all models.
Percentage of demand to close TRIAC output 2. Not available on all models.
Percentage of demand to close TRIAC output 3. Not available on all models.
Percentage of demand to close TRIAC output 4. Not available on all models.
Percentage of demand to open TRIAC output 1. Not available on all models.
Percentage of demand to open TRIAC output 2. Not available on all models.

40071 Percentage of demand to open TRIAC output 3. Not available on all models.

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Data Type

Range

Unsigned Unsigned Unsigned Unsigned

Range: reg 40057 to reg 40054 CFM 0 to 60 minutes Range: 0 to reg 40054 CFM Range: 0 to 9999 CFM

Unsigned

Range: 0 to 9999 CFM

Unsigned Scale 10 Unsigned Scale 10 Unsigned
Unsigned
Unsigned
Unsigned
Unsigned
Unsigned

Unit: Volt, Range: reg 40049 to reg 40051 Value x 10 (e.g. 5 Volts = 50) Unit: Volt, Range: reg 40050 to reg 40052 Value x 10 (e.g. 5 Volts = 50) 15 to 80%
15 to 80%
15 to 80%
15 to 80%
0 to reg 40065-4%
0 to reg 40065-4%

Unsigned

0 to reg 40065-4%

Writable W W RO RO
W
W W W W W W W W W
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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40072 40073

Percentage of demand to open TRIAC output 4. Not available on all models.
Integral time factor for cooling in seconds.

40074 Motor position. Not effective on all models.

40075 to 40080 - Reserved

40081

Air flow offset calibration. Refer to EVCB-Airflow Balance Instructions.Not effective on all models.

40084

Configuration value for Air Flow Min used during airflow balancing sequence. Refer to EVCB-Airflow Balance Instructions.
Not effective on all models.

40082, 40083, and 40085 to 40095 - Reserved

40096 Network fallback timeout Present Value in minutes.

40097 Reserved

40098 Maximum range of the CO2 sensor connected to AI1 or AI2.

40099 Maximum concentration of CO2 before the EVC activates an alarm.

Data Type

Unsigned Unsigned Unsigned

0 to reg 40065-4% 0 to 250 seconds 0 to 100%

Signed

-500 to 500 CFM

Unsigned

Range: 0 to 9999 CFM

Range

Unsigned

0 to 60 minutes

Unsigned Unsigned

100 to 5000 PPM Range: 100 to the greater ppm value between 2000 and reg 40098

Writable
W W RO RO W
W
RO W RO W W

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Register Index

Description

40100

System Option 1.  Not effective on all models.

EVCB14N Series
Modbus Communication Module User Guide

Data Type Bit String

Range

B3, B13-B14: Reserved
B0: Tstat temperature units 0 = Celsius; 1 = Fahrenheit
B1: Modbus temperature units 0 = Celsius; 1 = Fahrenheit
B2: Temperature setpoint lock 0 = Unlocked; 1 = Locked
B4: TO1/TO2 floating direction 0 = Direct; 1 = Reverse
B5: TO3/TO4 floating direction 0 = Direct; 1 = Reverse

B7: Freeze protection 0 = Disabled; 1 = Enabled
B8: User system off mode 0 = User can set Tstat to OFF 1 = User cannot set Tstat OFF
B9: Keypad bottom left lock 0 = Unlocked; 1 = Locked
B10:Keypad upper left lock 0 = Unlocked; 1 = Locked
B11: Keypad arrows lock 0 = Unlocked; 1 = Locked
B12: Program lock 0 = Unlocked; 1 = Locked

B6: Onboard motor direction B15: Schedule

0 = Direct; 1 = Reverse

0 = Disabled; 1 = Enabled

Writable W

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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40101

System Option 2.
Notes B14: Applies only if DI2 is in OverHeat or Override. B15: Configuration value of the fan operation when an output ramp is configured with the option "Fan On". When set to (0) On, the fan is continuously in operation even when EVC is off. When set to (1) Off, the fan turns off during the following conditions; User System Mode is set to OFF, when in night setback mode, scheduler forces the EVC OFF or when Digital Input 2 is set to Override and is active.  Not effective on all models.

40102 40103 40104

Status value of the actual changeover control mode.
System command status.  Not effective on all models.
TO OnOff.  Not available on all models.

40105 Occupancy or night setback mode commands.

40106 Status of digital input 1.

Data Type
Bit String
Unsigned Unsigned Unsigned Unsigned Unsigned

Range

B0-B1, B13: Reserved
B2: Auto baud rate detection 0 = Enabled; 1 = Disabled
B3: Night setback mode 0 = Tstat ON; 1 = Tstat OFF
B4: AO1 direction 0 = Direct; 1 = Reverse
B5: AO2 direction 0 = Direct; 1 = Reverse
B6: TO1 direction 0 = Direct; 1 = Reverse
B7: TO2 direction 0 = Direct; 1 = Reverse
0 = Cooling, 1= Heating

B8: TO3 direction 0 = Direct; 1 = Reverse
B9: TO4 direction 0 = Direct; 1 = Reverse
B10: Display RH 0 = No; 1 = Yes
B11: Pressure mode select 0 = independent;1 = dependent
B12: Auto pressure mode change 0 = Enabled; 1 = Disabled
B14: DI 2 Contact 0: NO; 1: NC
B15: Fan always "on" mode 0 = Always on; 1 = Follow NSB/NoOcc

0 = No Command, 1 = AirFlow 1 Balancing, 4 = AirFlow 2 Balancing

1 = TO1 OnOff 2 = TO2 OnOff
1 = Locally 2 = Off 3 = Occupancy
0 = Open, 1 = Close

4 = TO3 OnOff 8 = TO4 OnOff
4 = NoOccupancy 5 = Day 6 = Night

Writable
W
RO W RO W RO

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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40107

Analog input 1 signal.
 Not available on all models.  Not effective on all models.  Only available with EVCB14NIT0S.

40108 User System Control Mode.

40109 40110 40111

Sets the permissions or restrictions to change the system control mode by the user.
Indicates the status of the Night Setback mode.
Configuration of DI1 mode. Night setback or no occupancy status.  Only available with EVCB14NIT0S.

40112

Analog input 2 signal.
 Not available on all models.  Only available with EVCB14NIT0S.

40113 Occupancy status of the zone.

40114

AO1: Analog output 1 control ramp Notes: Options 11 and 12 are for fan powered applications and only available with models: EVCB14NIT4S, EVCB14NDT4S, and EVCB14NIT4SF.  Not available on all models.

Data Type
Unsigned
Unsigned Unsigned Unsigned Unsigned
Unsigned
Unsigned Unsigned

Range

1 = OFF 2 = ETS (external temp) 3 = SENS (changeover sensor) 4 = NoCL (normally cool) 5 = NoHT (normally heat) 6 = STFL (setpnt airflow 0-10Vdc) 7 = CO2 (carbon dioxide) 8 = AST (air supply temp sensor) 9 = mor (motor position)
1 = AUTO 2 = HEAT
1 = AUTO 2 = HEAT

10 = EXT50K (external 50K sensor) 11 = TSTAT temp sensor (thermostat temperature sensor) 12 = TSTAT Setpoint (thermostat setpoint 0-10Vdc) 13 = TSTAT Setpoint 2-10V (thermostat setpoint 2-10Vdc)
3 = COOL 4 = OFF
3 = COOL 4 = COOL-HEAT 5 = AUTO-LOCK

1 = Day, 2 = Night, 3 = Derogation

1=Off 2= Occupancy NO 3= Occupancy NC
1 = OFF 2 = ETS (external temp) 3 = SENS (changeover sensor) 4 = NoCL (normally cool) 5 = NoHT (normally heat) 6 = STFL (setpnt airflow 0-10Vdc) 7 = CO2 (carbon dioxide) 8 = AST (air supply temp sensor) 9 = mor (motor position)

4= Night Set Back NO 5= Night Set Back NC 6= Unoccupancy damper
10 = EXT50K (external 50K sensor) 11 = TSTAT temp sensor (thermostat temperature sensor) 12 = TSTAT Setpoint (thermostat setpoint 0-10Vdc) 13 = TSTAT Setpoint 2-10V (thermostat setpoint 2-10Vdc)

1 = No Occupancy, 2 = Occupancy, 3 = Derogation

1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = ArFL (airflow reading)

7 = CO2 (carbon dioxide) 8 = STFL (setpnt airflow 0-10Vdc) 9 ­ 10 = reserved 11 = Fan Auto (follow demand) 12 = Fan On (always on)

Writable
W
W W RO W
W
RO W

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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40115

AO2: Analog output 2 control ramp
Notes: Options 11 and 12 are for fan powered applications and only available with models: EVCB14NIT4S, EVCB14NDT4S, and EVCB14NIT4SF.  Not available on all models.

40116

TO1: Configuration of the ramp used to modulate (pulse or floating) or activate/deactivate (On/Off) TO1 based on demand.
 Not available on all models.

40117

TO2: Configuration of the ramp used to modulate (pulse or floating) or activate/deactivate (On/Off) TO2 based on demand.
 Not available on all models.

40118

TO3: Configuration of the ramp used to modulate (pulse or floating) or activate/deactivate (On/Off) TO3 based on demand.
 Not available on all models.

40119

TO4: Configuration of the ramp used to modulate (pulse or floating) or activate/deactivate (On/Off) TO4 based on demand.
 Not available on all models.

40120 40121 40122

TO1: Signal output type for TRIAC output 1.  Not available on all models.
TO2: Signal output type for TRIAC output 2.  Not available on all models.
TO3: Signal output type for TRIAC output 3.  Not available on all models.

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Data Type Unsigned
Unsigned
Unsigned
Unsigned
Unsigned Unsigned Unsigned Unsigned

Range

1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = ArFL (airflow reading)
1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = CO2 (carbon dioxide)
1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = CO2 (carbon dioxide)
1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = CO2 (carbon dioxide)
1 = OFF 2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = CO2 (carbon dioxide)

7 = CO2 (carbon dioxide) 8 = STFL (setpnt airflow 0-10Vdc) 9 ­ 10 = reserved 11 = Fan Auto (follow demand) 12 = Fan On (always on)
7 = STFL (setpnt airflow 0-10Vdc) 8 = COR* (changeover ramp) 9 = CH1* (cool/heat 1) 10 = ANLG* (analog 0-10Vdc) 11 = Fan Auto (follow demand) 12 = Fan On (always on)
7 = STFL (setpnt airflow 0-10Vdc) 8 = COR* (changeover ramp) 9 = CH1* (cool/heat 1) 10 = ANLG* (analog 0-10Vdc) 11 = Fan Auto (follow demand) 12 = Fan On (always on)
7 = STFL (setpnt airflow 0-10Vdc) 8 = COR* (changeover ramp) 9 = CH1* (cool/heat 1) 10 = ANLG* (analog 0-10Vdc) 11 = Fan Auto (follow demand) 12 = Fan On (always on)
7 = STFL (setpnt airflow 0-10Vdc) 8 = COR* (changeover ramp) 9 = CH1* (cool/heat 1) 10 = ANLG* (analog 0-10Vdc) 11 = Fan Auto (follow demand) 12 = Fan On (always on)

3 = Pulsing, 4 = On_Off, 5 = Floating

3 = Pulsing, 4 = On_Off

3 = Pulsing, 4 = On_Off, 5 = Floating

Writable W
W
W
W
W W W W
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Register Index

Description

40123 40124

TO4: Signal output type for TRIAC output 4.  Not available on all models.
Pressure independent output selection for VAV damper actuator.  Not available on all models.

40125

Motor ramp: Configuration of the ramp used to modulate the actuator based on demand.
 Not available on all models.

40126 40127 40128
40129

Changeover control mode status that indicates the source of changeover values.
Reserved
Reserved
Configuration of DI2 mode.  Only available with EVCB14NIT0S.

40130 Selected temperature control source (in Programming mode).

40131 40132 40133 40134 40135
40136

Airflow balance mode enter the balancing mode to adjust air flow factor. Not effective on all models.
Reserved
Configuration to set the motor position in night setback mode.  Not effective on all models.
Digital input 2 delay in seconds.
Time in seconds required by the actuator to complete a 90° run.  Not available on all models.
Minimum motor position in percentage of stroke for cooling.  Not available on all models.

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EVCB14N Series
Modbus Communication Module User Guide

Data Type

Range

Unsigned

3 = Pulsing 4 = On_Off

Unsigned Unsigned Unsigned

3 = Floating1, 4 = Floating2, 5 = Motor

2 = CR1 (cooling ramp 1) 3 = CR2 (cooling ramp 2) 4 = HR1 (heating ramp 1) 5 = HR2 (heating ramp 2) 6 = Not Available

7 = STFL (setpnt airflow 0-10Vdc) 8 = COR (changeover ramp) 9 = CH1 (cool/heat 1) 10 = ANLG (analog 0-10Vdc)

1 = Local, 2 = Cooling, 3 = Heating

Unsigned Unsigned Unsigned

1=Off

4=OverHeat2

2=Override 5=OverHeatAll

3=OverHeat1 6=ChangeOverNoCooling

7=ChangeOverNoHeating 8=Unoccupancy damper

1 = Internal Temperature 2 = External Temperature 3 = Remote Temperature

4 = Average Temperature 5 = Maximum Temperature

1 = Close 2 = Minimum Flow

3 = Maximum Flow 4 = Full Open

Unsigned Unsigned Unsigned

1 = Auto 2 = Open 0 to 3600 seconds
15 to 250 seconds

Unsigned

0 to 100%

Writable W W
W
W RO RO W
W W RO W W W W

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EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40137 40138 40139 40140 40141 40142 40143 40144 40145 40146
40147
40148
40149 40150 40151 40152

Minimum motor position in percentage of stroke for heating.  Not available on all models.
Airflow Hysteresis Stop in percentage. Not available on all models.
Airflow Hysteresis Start in percentage. Not available on all models.
Airflow scale.Not available on all models.
Airflow fault deadband in percentage. Not available on all models.
Airflow fault error in percentage. Not available on all models.
Airflow fault hysteresis in percentage. Not available on all models.
Airflow fault time.Not available on all models.
CL_HT SwitchTimer, waiting time before switching between the heating and cooling modes.
CL_HT SwitchTimerCount, countdown to indicate the swap between heating and cooling modes.
FloatingTO1/TO2, TRIAC output 1 or 2 when set to floating, indicates the floating signal demand.  Not available on all models.
FloatingTO3/TO4, TRIAC output 3 or 4 when set to floating, indicates the floating signal demand.  Not available on all models.
TO1 Pulsing, TRIAC output 1 when set to Pulsed, indicates the pulse signal demand.  Not available on all models.
TO2 Pulsing, TRIAC output 2 when set to Pulsed, indicates the pulse signal demand.  Not available on all models.
TO3 Pulsing, TRIAC output 3 when set to Pulsed, indicates the pulse signal demand. Not available on all models.
TO4 Pulsing, TRIAC output 4 when set to Pulsed, indicates the pulse signal demand. Not available on all models.

Data Type
Unsigned
Unsigned Unsigned Unsigned Unsigned Unsigned Unsigned Unsigned
Unsigned
Unsigned
Unsigned Scale 10
Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10

Range
0 to 100%
1 to 100% reg 40138 to 100% 1 = Scale1, 2 = Scale10, 3 = Scale100 1 to 30% 0 to 100% 1 to 30% 2 to 59 minutes
0 to 120 minutes
0 to 4,294,967,295 seconds
0 to 1000% Value x 10 (e.g. 15% =150)
0 to 1000% Value x 10 (e.g. 15% =150) 0 to 1000% Value x 10 (e.g. 15% =150) 0 to 1000% Value x 10 (e.g. 15% =150) 0 to 1000% Value x 10 (e.g. 15% =150) 0 to 1000% Value x 10 (e.g. 15% =150)

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Writable
W W W W W W W W W RO
RO
RO
RO RO RO RO
Page | 14

Register Index
40153 Over heat status.

Description

Configuration to override the motor position. 40154  Not available on all models.

40155 Information displayed on the TRL/TDU.

40156 40157

Status of digital input 2. Reserved

40158 System Options 3

40159 System Options 4

40160

Internal CO2, reading of the integrated CO2 sensor of TRLG or TRLGH/TDU (models with humidity sensor). If not available, the value will be fixed to 0x7FFF (32767)

40161 Internal light sensor reading in Luxes.

40162 Internal VOC sensor reading in ppb.

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EVCB14N Series
Modbus Communication Module User Guide

Data Type Unsigned Unsigned
Unsigned Unsigned

1 = OverHeatNormal 2 = OverHeat1
1 = Auto 2 = Open 3 = Close
1 = Temp Demand 2 = Setpoint Demand 3 = Temp
0 = Open, 1 = Close

Range
3 = OverHeat2 4 = OverHeatAll
4 = AirFlowCoolMin 5 = AirFlowCoolMax
4 = Setpoint 5 = Off

Bit String

[B0-B1, B4-B6, B8, B11-B15]: Reserved
B2: CO2 Display 0 = No; 1 = Yes
B3: CO2 Control Source 0 = Analog; 1 = TRLG

B7: Occupancy Control Source 0 = BI1; 1 = Intern Sensor
B9: Motor Position Control Temperature Fault 0 = Close; 1 = Open
B10: CO2 Control Mode 0 = Open; 1 = Control ramp

Bit String

[B0 ­ B15]: Reserved

Unsigned

0 to 2000 ppm

Unsigned Unsigned

0 to 16000 Luxes 1 to 60000 ppb

Writable RO W W RO RO
W
RO RO RO RO

Page | 15

EVCB14N Series
Modbus Communication Module User Guide

Register Index

Description

40163 Internal PIR sensor reading.

40164 40165

Occupancy minimum time in minutes.
Configuration value of the minimum position in cooling/heating mode in %.

40166 Control SetPoint.

40167 CO2 ramp proportional band

40168 CO2 ramp dead band

40169 Temperature sensor combination

40170 Average temperature

40171 Maximum temperature

40172 External sensor value of analog input 2

Data Type
Unsigned
Unsigned
Unsigned
Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1
Unsigned
Signed Scale 100
Signed Scale 100
Signed Scale 100

Range

0 = NoOccupancy, 1 = Occupancy

0 to 240 minutes

0 to 100 %

10 to 40 Value x 1 (e.g. 30°C = 30)
50 to 250 ppm Value x 1 (e.g. 50ppm = 50) 10 to 50 ppm Value x 1 (e.g. 50ppm = 50)
1 = TSTAT+AI1 2 = TSTAT+AI2
-4000 to 10000 Value x 100 (e.g. 5°C = 500)
-4000 to 10000 Value x 100 (e.g. 5°C = 500)
-4000 to 10000 Value x 100 (e.g. 5°C = 500)

3 = TSTAT+AI1+AI2 4 = AI1+AI2

Writable RO W W RO W W W RO RO RO

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Page | 16

Notes

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Customer service fax: (514) 333-1091 Monday to Friday: 8:00am to 5:00pm (Eastern time)



References

Microsoft Word for Microsoft 365