Modbus Variable List
Release date: 20210301, Revision: 36
Document in original language | · 30
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All rights reserved
E&OE
Systemair UAB reserves the rights to change their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.
Systemair is not liable or bound by the warranty if these instructions are not adhered to during installation or service.
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1 Information....... . .. . . .. . .. . ... . .. . .. . . .. . .. . . .. . .. . . .. . .. . .. . 1
1.1 Physical layer . . .. . .. . . .. . .. . .. . ... . .. . ... . .. . .. . . .. . .1
1.2 Transmission modes .... . .. . ... . .. . .. . . .. . .. . . .. . ..1
2 Modbus variable list. . . .. . .. . . .. ... . .. . ... . .. . .. . . .. . .. . . .. . .1
2.1 Demand Control .. . .. . .. . .. . ... . .. . .. . . .. . .. . ... . .. . .1
2.2 User modes ...... . . .. . .. . . .. . .. . . .. . .. . . .. ... . .. . ... . 2
2.3 Airflow Control . .. . ... . .. . .. . . .. . .. . . .. . .. . . .. . .. . .. . 5
2.4 Outdoor Airflow Compensation ........ . .. . . .. . .8
2.5 Temperature Control .. .. . .. . . .. . .. . ... . .. . ... . .. . ..8
2.6 Cooler.. . ... . .. . .. . . .. . .. . . .. . .. . ... . .. . ... . .. . .. . . .. . ..9
2.7 Heater .... . .. . . .. . .. . ... . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . 9
2.8 Extra Controller .. .. . .. . . .. . .. . ... . .. . ... . .. . .. . . .. . ..9
2.9 Change-over (Heating/Cooling)..... . .. . ... . .. 10
2.10 Moisture transfer control...... . . .. . .. . ... . .. . ... 10
2.11 Cooling recovery ...... . ... . .. . .. . . .. . .. . ... . .. . ... 10
2.12 ECO mode. . .. . ... . .. . ... . .. . .. . . .. . .. . ... . .. . ... . .. . 11
2.13 Free Cooling . ... . .. . ... . .. . .. . . .. . .. . .. . . .. . .. . . .. . .11
2.14 Week Schedule .. ... . .. . ... . .. . .. . . .. . .. . ... . .. . ... 11
2.15 Time and Date ..... . .. . . .. . .. . ... . .. . ... . .. . ... . .. . 14
2.16 Filter replacement ..... . . .. . .. . . .. . .. . . .. . .. . . .. .. 15
2.17 Analog Input values (Temperatures,
CO2, RH) . . .. . . .. . .. . ... . .. . .. . . .. . .. . . .. . .. . .. . . .. . .15
2.18 Digital Input functions. . .. . .. . ... . .. . ... . .. . .. . . .. 16
2.19 Output values ... . .. . .. . . .. . .. . . .. . .. . ... . .. . ... . .. . 17
2.20 Alarms... . . .. . .. . .. . . .. . .. . . .. . .. . . .. . .. . . .. ... . .. . .. 18
2.21 System settings . .. . .. . ... . .. . ... . .. . .. . . .. . .. . .. . . 22
2.22 Modbus .. . ... . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . . 22
2.23 Unit Backups . .. . ... . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . 22
3 Revision table..... . . .. . . .. ... . .. . ... . .. . .. . . .. . .. . . .. . .. . ... 23
Contents
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Information |
1 Information
Modbus is a serial communication protocol used for transmitting information over serial lines between electronic devices. The device requesting the information is called “Master”, while devices supplying the requested information are
“Slaves”. When it comes to planning data communication for open, multi-vendor industrial control systems, Modbus is
the first choice of end users and integrators alike.
The Modbus/RTU protocol defines how a “master” device polls one or more “slave” devices to read and write data in
real time by means of RS232, RS422, or RS485 serial data communication. Modbus/TCP, an extension of Modbus/RTU,
defines how Modbus/RTU and Modbus/ASCII messages are encoded within and transported over TCP/IP-based networks. Modbus/TCP is just as simple to implement and flexible to apply as the original Modbus/RTU.
1.1 Physical layer
New Systemair controls have standard and readily available Modbus/RTU over three-wire (A, B and GND) RS485 on the
Connection Board (CB) and Modbus/TCP over TCP/IP using Internet Access Module (available as an accessory - Art. No.
211243). For Modbus/TCP connection over TCP/IP using Internet Access Module refer to the IAM quick guide.
Slave address: 1 to 247
Baud rate: 9600 to 115200
Parity: None, Even, Odd
Stop bits: 1 (fixed)
Parameters can be changed in Modbus page (Service -> Communication -> Modbus) in the Control Panel.
1
1.2 Transmission modes
The registers are Input registers (read-only) and Holding registers (read-write) when using Modbus/RTU and Holding
registers (read-write) when using Modbus/TCP.
All registers are 16 bit Integers.
Table 1 Signal types used
Unsigned Integers
Signed Integers
I
I*
Table 2 Register types used
Input Registers
16-bit quantity, Analog Input Register provided by an I/O system, read-only, Modbus Function
04
Holding registers 16-bit quantity, analog output HR alterable by an application program, read-write , Modbus
function 03 / 06 / 16
2 Modbus variable list
Tables below provides an extensive list of Modbus variables used in the system grouped according to the functionality
the variables are related to.
2.1 Demand Control
Symbolic register name
REG_DEMC_RH_HIGHEST I
REG_DEMC_CO2_HIGHEST I
REG_DEMC_RH_PI_SP I
REG_DEMC_RH_PI_FEEDBACK I
REG_DEMC_RH_PI_OUTPUT I
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Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
1001 0 100
1002 0 2000
1011 0 100
1012 0 100
1019
Highest value of all RH sensors
Highest value of all CO2 sensors
Set point for RH demand control
Sensor value for RH demand control
Output value for RH demand control.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
| Modbus variable list
2
Symbolic register name
REG_DEMC_CO2_PI_SP I
REG_DEMC_CO2_PI_FEEDBACK I
REG_DEMC_CO2_PI_OUTPUT I
REG_DEMC_RH_SETTINGS_PBAND I
REG_DEMC_RH_SETTINGS_SP_SUMMER I
REG_DEMC_RH_SETTINGS_SP_WINTER I
REG_DEMC_RH_SETTINGS_ON_OFF I
REG_SUMMER_WINTER I
REG_DEMC_CO2_SETTINGS_PBAND I
REG_DEMC_CO2_SETTINGS_SP I
REG_DEMC_CO2_SETTINGS_ON_OFF I
REG_IAQ_SPEED_LEVEL_MIN I
REG_IAQ_SPEED_LEVEL_MAX I
REG_IAQ_LEVEL I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
1021 0 2000
1022 0 2000
1029
1031 1 100
1033 10 100
1034 10 100
1035 0 1
1039 0 1
1041 50 2000
1043 100 2000
1044 0 1
1121 2 3
1122 3 5
1123 0 2
Set point for CO2 demand control
Sensor value for CO2 demand control
Output value for CO2 demand control(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
Pband setting for RH demand control
Set point setting for RH demand control
during (temperature based) winter time
Set point setting for RH demand control
during (temperature based) summer time
Flag indicating if RH demand control is
allowed
Actual seasson for Demand Control0:
Summer1: Winter
Pband setting for CO2 demand control
Set point setting for CO2 demand control
Flag indicating if CO2 demand control is
allowed
Minimum level for Demand Control2: Low3:
Normal
Maximum level for user Demand Control3:
Normal4: High5: Maximum
Actual IAQ level:0: Economic1: Good2:
Improving
2.2 User modes
Symbolic register name
REG_USERMODE_HOLIDAY_TIME I
REG_USERMODE_AWAY_TIME I
REG_USERMODE_FIREPLACE_TIME I
REG_USERMODE_REFRESH_TIME I
REG_USERMODE_CROWDED_TIME I
REG_USERMODE_REMAINING_TIME_L I
REG_USERMODE_REMAINING_TIME_H I
REG_USERMODE_CROWDED_AIRFLOW_
LEVEL_SAF
REG_USERMODE_CROWDED_AIRFLOW_
LEVEL_EAF
REG_USERMODE_REFRESH_AIRFLOW_
LEVEL_SAF
REG_USERMODE_REFRESH_AIRFLOW_
LEVEL_EAF
REG_USERMODE_FIREPLACE_AIRFLOW_
LEVEL_SAF
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
1101 1 365
1102 1 72
1103 1 60
1104 1 240
1105 1 8
1111
1112
1135 3 5
1136 3 5
1137 3 5
1138 3 5
1139 3 5
Time delay setting for user mode Holiday
Time delay setting for user mode Away
Time delay setting for user mode Fire Place
Time delay setting for user mode Refresh
Time delay setting for user mode Crowded
Remaining time for the state Holiday/
Away/Fire Place/Refresh/Crowded
Remaining time for the state Holiday/
Away/Fire Place/Refresh/Crowded
Fan speed level for mode Crowded3:
Normal4: High5: Maximum
Fan speed level for mode Crowded3:
Normal4: High5: Maximum
Fan speed level for mode Refresh3:
Normal4: High5: Maximum
Fan speed level for mode Refresh3:
Normal4: High5: Maximum
Fan speed level for mode Fire Place3:
Normal4: High5: Maximum
| 30
Modbus variable list |
3
Symbolic register name
REG_USERMODE_FIREPLACE_AIRFLOW_
LEVEL_EAF
REG_USERMODE_AWAY_AIRFLOW_
LEVEL_SAF
REG_USERMODE_AWAY_AIRFLOW_
LEVEL_EAF
REG_USERMODE_HOLIDAY_AIRFLOW_
LEVEL_SAF
REG_USERMODE_HOLIDAY_AIRFLOW_
LEVEL_EAF
REG_USERMODE_COOKERHOOD_
AIRFLOW_LEVEL_SAF
REG_USERMODE_COOKERHOOD_
AIRFLOW_LEVEL_EAF
REG_USERMODE_VACUUMCLEANER_
AIRFLOW_LEVEL_SAF
REG_USERMODE_VACUUMCLEANER_
AIRFLOW_LEVEL_EAF
REG_USERMODE_CROWDED_T_OFFSET
REG_USERMODE_MODE I
REG_USERMODE_HMI_CHANGE_
REQUEST
REG_CDI_1_AIRFLOW_LEVEL_SAF I
REG_CDI_1_AIRFLOW_LEVEL_EAF I
REG_CDI_2_AIRFLOW_LEVEL_SAF I
REG_CDI_2_AIRFLOW_LEVEL_EAF I
REG_CDI_3_AIRFLOW_LEVEL_SAF I
REG_CDI_3_AIRFLOW_LEVEL_EAF I
REG_PRESSURE_GUARD_AIRFLOW_
LEVEL_SAF
REG_PRESSURE_GUARD_AIRFLOW_
LEVEL_EAF
REG_SENSOR_DI_AWAY I
REG_SENSOR_DI_HOLIDAY I
REG_SENSOR_DI_FIREPLACE I
Sig.
Modbus Reg. type Mod-
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
1140 1 3
1141 0 3
1142 0 3
1143 0 3
1144 0 3
1145 1 5
1146 1 5
1147 1 5
1148 1 5
1151 -100 0
1161 0 12
1162 0 7
1171 0 5
1172 0 5
1173 0 5
1174 0 5
1175 0 5
1176 0 5
1177 0 5
1178 0 5
12301 0 1
12302 0 1
12303 0 1
Fan speed level for mode Fire Place1:
Minimum2: Low3: Normal
Fan speed level for mode Away.0: Off(1)1:
Minimum2: Low3: Normal.(1): value Off
only allowed if contents of register REG_
FAN_MANUAL_STOP_ALLOWED is 1.
Fan speed level for mode Away.0: Off(1)1:
Minimum2: Low3: Normal.(1): value Off
only allowed if contents of register REG_
FAN_MANUAL_STOP_ALLOWED is 1.
Fan speed level for mode Holiday.0: Off(1)
1: Minimum2: Low3: Normal.(1): value Off
only allowed if contents of register REG_
FAN_MANUAL_STOP_ALLOWED is 1.
Fan speed level for mode Holiday.0: Off(1)
1: Minimum2: Low3: Normal.(1): value Off
only allowed if contents of register REG_
FAN_MANUAL_STOP_ALLOWED is 1.
Fan speed level for mode Cooker Hood2:
Low3: Normal4: High
Fan speed level for mode Cooker Hood1:
Minimum2: Low3: Normal
Fan speed level for mode Vacuum Cleaner2:
Low3: Normal4: High
Fan speed level for mode Vacuum Cleaner1:
Minimum2: Low3: Normal
Temperature setpoint offset for user mode
Crowded
Active User mode.0: Auto1: Manual2:
Crowded3: Refresh4: Fireplace5: Away6:
Holiday7: Cooker Hood8: Vacuum Cleaner9:
CDI110: CDI211: CDI312: PressureGuard
New desired user mode as requested by
HMI0: None1: AUTO2: Manual 3: Crowded4:
Refresh5: Fireplace6: Away7: Holiday
Fan speed level for configurable digital input
1.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable digital input
1.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable digital input
2.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable digital input
2.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable digital input
3.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable digital input
3.0: Off1: Minimum2: Low3: Normal4:
High5: Maximum
Fan speed level for configurable pressure
guard function.0: Off1: Minimum2: Low3:
Normal4: High5: Maximum
Fan speed level for configurable pressure
guard function.0: Off1: Minimum2: Low3:
Normal4: High5: Maximum
Value of physical Digital Input of Away
function
Value of physical Digital Input of Holiday
function
Value of physical Digital Input of Fireplace
function
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| Modbus variable list
4
Symbolic register name
REG_SENSOR_DI_REHRESH I
REG_SENSOR_DI_CROWDED I
REG_SENSOR_DI_COOKERHOOD I
REG_SENSOR_DI_VACUUMCLEANER I
REG_USERMODE_HOLIDAY_DI_OFF_
DELAY
REG_USERMODE_AWAY_DI_OFF_DELAY I
REG_USERMODE_FIRPLACE_DI_OFF_
DELAY
REG_USERMODE_REFRESH_DI_OFF_
DELAY
REG_USERMODE_CROWDED_DI_OFF_
DELAY
REG_CDI1_OFF_DELAY I
REG_CDI2_OFF_DELAY I
REG_CDI3_OFF_DELAY I
REG_SPEED_CDI1_SAF I
REG_SPEED_CDI1_EAF I
REG_SPEED_CDI2_SAF I
REG_SPEED_CDI2_EAF I
REG_SPEED_CDI3_SAF I
REG_SPEED_CDI3_EAF I
REG_SPEED_PRESSURE_GUARD_SAF I
REG_SPEED_PRESSURE_GUARD_EAF I
REG_USERMODE_REMAINING_TIME_
CDI1_L
REG_USERMODE_REMAINING_TIME_
CDI1_H
REG_USERMODE_REMAINING_TIME_
CDI2_L
REG_USERMODE_REMAINING_TIME_
CDI2_H
REG_USERMODE_REMAINING_TIME_
CDI3_L
REG_USERMODE_REMAINING_TIME_
CDI3_H
REG_FUNCTION_ACTIVE_PRESSURE_
GUARD
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
12304 0 1
12305 0 1
12306 0 1
12307 0 1
1181 0 365
1182 0 72
1183 0 60
1184 0 240
1185 0 8
1188 0 240
1189 0 240
1190 0 240
1221
1222
1223
1224
1225
1226
1227
1228
1621 Remaining time
1622
1623 Remaining time
1624
1625 Remaining time
1626
3114 0 1
Value of physical Digital Input of Refresh
function
Value of physical Digital Input of Crowded
function
Value of physical Digital Input of
Cookerhood function
Value of physical Digital Input of Vacuum
Cleaner function
Off delay for DI
Off delay for DI
Off delay for DI
Off delay for DI
Off delay for DI
Off delay for DI
Off delay for DI
Off delay for DI
SAF speed value for user mode Holiday.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for user mode Holiday.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
SAF speed value for mode Cooker Hood.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for mode Cooker Hood.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
SAF speed value for mode Vacuum Cleaner.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
EAF speed value for mode Vacuum Cleaner.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
SAF speed value for low fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for low fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
Indicates if function is active
| 30
Modbus variable list |
5
Symbolic register name
REG_FUNCTION_ACTIVE_CDI_1 I
REG_FUNCTION_ACTIVE_CDI_2 I
REG_FUNCTION_ACTIVE_CDI_3 I
REG_SENSOR_DI_PRESSURE_GUARD I
REG_SENSOR_DI_CDI_1 I
REG_SENSOR_DI_CDI_2 I
REG_SENSOR_DI_CDI_3 I
2.3 Airflow Control
Symbolic register name
REG_SENSOR_RPM_SAF I
REG_SENSOR_RPM_EAF I
REG_SENSOR_FLOW_PIGGYBACK_SAF I
REG_SENSOR_FLOW_PIGGYBACK_EAF I
REG_SENSOR_DI_BYF I
REG_SYSTEM_UNIT_FLOW I
REG_SYSTEM_UNIT_PRESSURE I
REG_MANUAL_OVERRIDE_OUTPUT_SAF I
REG_MANUAL_OVERRIDE_OUTPUT_EAF I
REG_MANUAL_OVERRIDE_OUTPUT_
SAF_VALUE
REG_MANUAL_OVERRIDE_OUTPUT_
EAF_VALUE
REG_USERMODE_MANUAL_AIRFLOW_
LEVEL_SAF
REG_USERMODE_MANUAL_AIRFLOW_
LEVEL_EAF
REG_FAN_MANUAL_STOP_ALLOWED I
REG_FAN_REGULATION_UNIT I
REG_SPEED_FANS_RUNNING I
REG_SPEED_SAF_DESIRED_OFF I
REG_FAN_LEVEL_SAF_MIN I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
3115 0 1
3116 0 1
3117 0 1
12316 0 1
12317 0 1
12318 0 1
12319 0 1
Min Max Description
bus
Adr.
12401 0 5000
12402 0 5000
12403
12404
12405
9001 0 2
9002 0 1
13601 0 1
13602 0 1
13801 0 100
13802 0 100
1131 1 4
1132 2 4
1353 0 1
1274 0 4
1351 0 1
1352 0 1
1301
Indicates if function is active
Indicates if function is active
Indicates if function is active
Indicates if physical DI is active
Indicates if physical DI is active
Indicates if physical DI is active
Indicates if physical DI is active
Supply Air Fan RPM indication from TACHO
Extract Air Fan RPM indication from TACHO
Flow value calculated from piggyback
pressure sensor.
Flow value calculated from piggyback
pressure sensor.
Value from Bypass Damper Feedback input.
In %.
Unit for CAV control mode.0: l/s1: m3/h2:
cfm
Units for VAV control mode.0: Pa1: InH2O
SAF Override.0: Auto1: Manual
EAF Override.0: Auto1: Manual
SAF Override value in % if manual (1)
selected
EAF override value in % if manual (1)
selected
Fan speed level for mode Manual, supply
fan.(1): value Off only allowed if contents of
register 1353 is 1.(1): Off2: Low3: Normal4:
High
Fan speed level for mode Manual, extract
fan.2: Low3: Normal4: High
Allow manual fan stop (also as selection for
user modes and Week schedule).0: Manual
stop not allowed1: Manual stop allowed
Type of fan control mode.0: Manual1:
RPM2: VAV (Constant Pressure)3: CAV
(Constant Flow)4: DCV (External)
Indicates that both fans are running
Indicates that the SAF shall be turned off
once the electrical reheater is cooled down.
SAF speed value for minimum fan speed.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
| 30
| Modbus variable list
6
Symbolic register name
REG_FAN_LEVEL_EAF_MIN I
REG_FAN_LEVEL_SAF_LOW I
REG_FAN_LEVEL_EAF_LOW I
REG_FAN_LEVEL_SAF_NORMAL I
REG_FAN_LEVEL_EAF_NORMAL I
REG_FAN_LEVEL_SAF_HIGH I
REG_FAN_LEVEL_EAF_HIGH I
REG_FAN_LEVEL_SAF_MAX I
REG_FAN_LEVEL_EAF_MAX I
REG_FAN_LEVEL_SAF_MIN_
PERCENTAGE
REG_FAN_LEVEL_EAF_MIN_
PERCENTAGE
REG_FAN_LEVEL_SAF_LOW_
PERCENTAGE
REG_FAN_LEVEL_EAF_LOW_
PERCENTAGE
REG_FAN_LEVEL_SAF_NORMAL_
PERCENTAGE
REG_FAN_LEVEL_EAF_NORMAL_
PERCENTAGE
REG_FAN_LEVEL_SAF_HIGH_
PERCENTAGE
REG_FAN_LEVEL_EAF_HIGH_
PERCENTAGE
REG_FAN_LEVEL_SAF_MAX_
PERCENTAGE
REG_FAN_LEVEL_EAF_MAX_
PERCENTAGE
REG_FAN_LEVEL_SAF_MIN_RPM I
REG_FAN_LEVEL_EAF_MIN_RPM I
REG_FAN_LEVEL_SAF_LOW_RPM I
REG_FAN_LEVEL_EAF_LOW_RPM I
REG_FAN_LEVEL_SAF_NORMAL_RPM I
REG_FAN_LEVEL_EAF_NORMAL_RPM I
REG_FAN_LEVEL_SAF_HIGH_RPM I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
1302
1303
1304
1305
1306
1307
1308
1309
1310
1401 16 100
1402 16 100
1403 16 100
1404 16 100
1405 16 100
1406 16 100
1407 16 100
1408 16 100
1409 16 100
1410 16 100
1411 500 5000
1412 500 5000
1413 500 5000
1414 500 5000
1415 500 5000
1416 500 5000
1417 500 5000
EAF speed value for minimum fan speed.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
SAF speed value for low fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for low fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
SAF speed value for normal fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for normal fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
SAF speed value for high fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
EAF speed value for high fan speed.(1):
Depends on regulation type. Value can be
%, RPM, Pressure or Flow
SAF speed value for maximum fan speed.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
EAF speed value for maximum fan speed.
(1): Depends on regulation type. Value can
be %, RPM, Pressure or Flow
SAF speed value for minimum fan speed
EAF speed value for minimum fan speed
SAF speed value for low fan speed
EAF speed value for low fan speed
SAF speed value for normal fan speed
EAF speed value for normal fan speed
SAF speed value for high fan speed
EAF speed value for high fan speed
SAF speed value for maximum fan speed
EAF speed value for maximum fan speed
SAF speed value for minimum fan speed
EAF speed value for minimum fan speed
SAF speed value for low fan speed
EAF speed value for low fan speed
SAF speed value for normal fan speed
EAF speed value for normal fan speed
SAF speed value for high fan speed
| 30
Modbus variable list |
7
Symbolic register name
REG_FAN_LEVEL_EAF_HIGH_RPM I
REG_FAN_LEVEL_SAF_MAX_RPM I
REG_FAN_LEVEL_EAF_MAX_RPM I
REG_FAN_LEVEL_SAF_MIN_PRESSURE I
REG_FAN_LEVEL_EAF_MIN_PRESSURE I
REG_FAN_LEVEL_SAF_LOW_PRESSURE I
REG_FAN_LEVEL_EAF_LOW_PRESSURE I
REG_FAN_LEVEL_SAF_NORMAL_
PRESSURE
REG_FAN_LEVEL_EAF_NORMAL_
PRESSURE
REG_FAN_LEVEL_SAF_HIGH_PRESSURE I
REG_FAN_LEVEL_EAF_HIGH_PRESSURE I
REG_FAN_LEVEL_SAF_MAX_PRESSURE I
REG_FAN_LEVEL_EAF_MAX_PRESSURE I
REG_FAN_LEVEL_SAF_MIN_FLOW I
REG_FAN_LEVEL_EAF_MIN_FLOW I
REG_FAN_LEVEL_SAF_LOW_FLOW I
REG_FAN_LEVEL_EAF_LOW_FLOW I
REG_FAN_LEVEL_SAF_NORMAL_FLOW I
REG_FAN_LEVEL_EAF_NORMAL_FLOW I
REG_FAN_LEVEL_SAF_HIGH_FLOW I
REG_FAN_LEVEL_EAF_HIGH_FLOW I
REG_FAN_LEVEL_SAF_MAX_FLOW I
REG_FAN_LEVEL_EAF_MAX_FLOW I
REG_INPUT_EXTERNAL_CTRL_SAF I
REG_INPUT_EXTERNAL_CTRL_EAF I
REG_OUTPUT_SAF I
REG_OUTPUT_EAF I
REG_OUTPUT_FAN_SPEED1 I
REG_OUTPUT_FAN_SPEED2 I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
1418 500 5000
1419 500 5000
1420 500 5000
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
2101 0 100
2102 0 100
14001 0 100
14002 0 100
14371 0 100
14372 0 100
EAF speed value for high fan speed
SAF speed value for maximum fan speed
EAF speed value for maximum fan speed
SAF speed value for minimum fan speed
EAF speed value for minimum fan speed
SAF speed value for low fan speed
EAF speed value for low fan speed
SAF speed value for normal fan speed
EAF speed value for normal fan speed
SAF speed value for high fan speed
EAF speed value for high fan speed
SAF speed value for maximum fan speed
EAF speed value for maximum fan speed
SAF speed value for minimum fan speed
EAF speed value for minimum fan speed
SAF speed value for low fan speed
EAF speed value for low fan speed
SAF speed value for normal fan speed
EAF speed value for normal fan speed
SAF speed value for high fan speed
EAF speed value for high fan speed
SAF speed value for maximum fan speed
EAF speed value for maximum fan speed
Value from External Controller Input, SAF. In
%.
Value from External Controller Input, EAF. In
%.
SAF fan speed
EAF fan speed
Supply air fan control signal in %
Extract air fan control signal in %
| 30
| Modbus variable list
8
2.4 Outdoor Airflow Compensation
Symbolic register name
REG_FAN_OUTDOOR_COMP_TYPE I
REG_FAN_OUTDOOR_COMP_MAX_
VALUE
REG_FAN_OUTDOOR_COMP_STOP_T_
WINTER
REG_FAN_OUTDOOR_COMP_MAX_TEMP
REG_FAN_OUTDOOR_COMP_START_T_
WINTER
REG_FAN_OUTDOOR_COMP_START_T_
SUMMER
REG_FAN_OUTDOOR_COMP_STOP_T_
SUMMER
REG_FAN_OUTDOOR_COMP_VALUE_
SUMMER
2.5 Temperature Control
Symbolic register name
REG_SYSTEM_UNIT_TEMPERATURE I
REG_TC_CONTROL_MODE I
REG_TC_SP
REG_TC_SP_SATC
REG_TC_CASCADE_SP
REG_TC_ROOM_CTRL_SP_SATC
REG_TC_CASCADE_SP_MIN
REG_TC_CASCADE_SP_MAX
REG_TC_EAT_RAT_SP
REG_SATC_HEAT_DEMAND I
REG_SATC_PI_SP
REG_SATC_PI_OUTPUT
REG_ROOM_CTRL_PI_SP
REG_ROOM_CTRL_PI_OUTPUT
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Read Input Register
I*
(Function 04)
Holding Register
I*
(Function 03/06/16)
Read Input Register
I*
(Function 04)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Read Input Register
I*
(Function 04)
Read Input Register
(Function 04)
Read Input Register
I*
(Function 04)
Read Input Register
I*
(Function 04)
Read Input Register
I*
(Function 04)
Read Input Register
I*
(Function 04)
Max
Min
bus
Adr.
1251 0 1
1252 0 50
1253 -300 0
1254 -300 0
1256 -300 0
1257 150 300
1258 150 400
1259 0 50
bus
Adr.
9003 0 1
2031 0 2
2001 120 300
2054 120 300
2013 120 400
2053 120 400
2021 120 400
2022 120 400
2051 120 400
2055 0 100
2061 120 300
2069 0 100
2071 120 300
2079 0 100
Min Max Description
Description
Compensate only SF or both SF and EF0:
SAF1: SAF/EAF
Compensation value at lowest temperature.
Temperature at which compensation
reaches maximum value during the winter
period.
Temperature at which highest
compensation is applied.
Temperature at which compensation starts
during the winter period.
Temperature at which compensation starts
during the summer period.
Temperature at which compensation
reaches maximum value during the summer
period.
Compensation value during summer period
Units for temperature.0: Celcius1:
Fahrenheit
Unit temperature control mode0: Supply1:
Room2: Extract
Temperature setpoint for the supply air
temperature
Temperature setpoint for the supply air
temperature
Temperature set point for SATC, as
calculated by RATC/EATC during cascade
control
Temperature set point for SATC, as
calculated by RATC/EATC during cascade
control
Minimum temperature set point for the
SATC
Maximum temperature set point for the
SATC
EAT or RAT value, used for room/extract air
controller.
Output of the SATC (0-100%)
SATC setpoint value
SATC output signal
RATC setpoint value
RATC output signal
| 30
2.6 Cooler
Modbus variable list |
9
Symbolic register name
REG_COOLER_FROM_SATC I
REG_COOLER_OAT_INTERLOCK_T I
REG_COOLER_CIRC_PUMP_START_T I
REG_COOLER_CIRC_PUMP_STOP_DELAY I
REG_OUTPUT_Y3_CIRC_PUMP I
REG_OUTPUT_Y3_ANALOG I
REG_OUTPUT_Y3_DIGITAL I
2.7 Heater
Symbolic register name
REG_HEATER_CIRC_PUMP_START_T
REG_HEATER_CIRC_PUMP_STOP_DELAY I
REG_OUTPUT_Y1_CIRC_PUMP I
REG_SPEED_ELECTRICAL_HEATER_HOT_
COUNTER
REG_FAN_SPEED_AFTER_HEATER_
COOLING_DOWN_SAF
REG_FAN_SPEED_AFTER_HEATER_
COOLING_DOWN_EAF
REG_FUNCTION_ACTIVE_HEATER_COOL_
DOWN
REG_OUTPUT_TRIAC_CONFIGURED I
REG_PWM_TRIAC_OUTPUT I
REG_OUTPUT_TRIAC I
REG_OUTPUT_Y1_ANALOG I
REG_OUTPUT_Y1_DIGITAL I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Sig.
Modbus Reg. type Mod-
Holding Register
I*
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
2311 0 100
2316 120 250
2314 0 200
2317 0 60
14302
14201 0 100
14202 0 1
Min Max Description
bus
Adr.
2113 0 200
2122 0 60
14301
1357
1358 0 100
1359 0 100
3113 0 1
13201 0 1
2149 0 100
14381 0 1
14101 0 100 Heater AO state.
14102 0 1 Heater DO state:0: Output not active1:
Cooler signal
Temperature at which cooling is interlocked
Temperature at which the cooler circulation
pump is started
Off time delay for the cooler circulation
pump in minutes
Cooler circulation pump output
Cooler AO state.
Cooler DO state:0: Output not active1:
Output active
Temperature at which the Heater circulation
pump is started
Off time delay for the heater circulation
pump in minutes
Heating circulation pump output
Electrical Heater hot counter. Count down
from 120 sec.
Supply Air Fan Speed Level After Heater
Cooling Down
Extract Air Fan Speed Level After Heater
Cooling Down
Active Heater Cool Down
Indicates if the TRIAC shall be used
TRIAC after manual override
TRIAC control signal
Output active
2.8 Extra Controller
Symbolic register name
REG_EXTRA_CONTROLLER_CIRC_PUMP_
START_T
REG_EXTRA_CONTROLLER_CIRC_PUMP_
STOP_DELAY
REG_OUTPUT_Y4_CIRC_PUMP I
REG_EXTRA_CONTROLLER_SET_PI_
SETPOINT
| 30
Sig.
Modbus Reg. type Mod-
Holding Register
I*
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
I*
(Function 03/06/16)
Min Max Description
bus
Adr.
2404 0 200
2405 0 60
14304
2403 -300 400
Start temperature for extra controller
circulation pump
Off time delay for the extra controller
circulation pump in minutes
Extra controller circulation pump output
Set point value for the extra controller PI
regulator
| Modbus variable list
10
Symbolic register name
REG_EXTRA_CONTROLLER_PREHEATER_
SETPOINT_TYPE
REG_EXTRA_CONTROLLER_GEO_
PREHEATER_SP
REG_EXTRA_CONTROLLER_GEO_
PREHEATER_ACTIVATION_T
REG_EXTRA_CONTROLLER_GEO_
PRECOOLER_SP
REG_EXTRA_CONTROLLER_GEO_
PRECOOLER_ACTIVATION_T
REG_SENSOR_DI_EXTRA_CONTROLLER_
EMT
REG_OUTPUT_Y4_ANALOG I
REG_OUTPUT_Y4_DIGITAL I
Sig.
Modbus Reg. type Mod-
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
2.9 Change-over (Heating/Cooling)
Symbolic register name
REG_CHANGE_OVER_CIRC_PUMP_
START_T
REG_CHANGE_OVER_CIRC_PUMP_STOP_
DELAY
REG_OUTPUT_Y1_Y3_CIRC_PUMP I
Sig.
Modbus Reg. type Mod-
Holding Register
I*
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
2418 0 1
2420 –300 100
2421 –300 0
2422 100 300
2423 150 300
12310 0 1
14203 0 100
14204 0 1
Min Max Description
bus
Adr.
2451 0 200
2452 0 60
14303
Temperature setpoint for the preheater.0:
Auto1: Manual
Extra controller EMT input value
Extra controller AO state.
Extra controller DO state:0: Output not
active1: Output active
Start temperature for the change-over
circulation pump
Off time delay for the change-over
circulation pump in minutes
Change-over circulation pump output
2.10 Moisture transfer control
Symbolic register name
REG_HEAT_EXCHANGER_RH_
TRANSFER_CTRL_ENABLED
REG_ROTOR_RH_TRANSFER_CTRL_
PBAND
REG_ROTOR_RH_TRANSFER_CTRL_ITIME I
REG_ROTOR_RH_TRANSFER_CTRL_
SETPOINT
REG_ROTOR_RH_TRANSFER_CTRL_ON_
OFF
Sig.
I
I
I
I
2.11 Cooling recovery
Symbolic register name
REG_COOLER_RECOVERY_LIMIT_T I
REG_HEAT_EXCHANGER_COOLING_
RECOVERY_ON_OFF
Sig.
I
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
2147
2201 100-040
2202 120 0
2203 100 45
2204 1 1
2315 0 100
2134 0 1
Min Max Description
bus
Adr.
Indicates if RH trasnfer control shall be
applied
Pband setting for RH transfer control
Itime setting for RH transfer control
Set point setting for RH transfer control
Enabling of humidity transfer control
Min Max Description
bus
Adr.
Temperature at which cooling recovery is
allowed
Enabling of cooling recovery
| 30
2.12 ECO mode
Modbus variable list |
11
Symbolic register name
REG_ECO_T_Y1_OFFSET
REG_ECO_MODE_ON_OFF I
REG_ECO_FUNCTION_ACTIVE I
2.13 Free Cooling
Symbolic register name
REG_FREE_COOLING_ON_OFF I
REG_FREE_COOLING_OUTDOOR_
DAYTIME_T
REG_FREE_COOLING_OUTDOOR_
NIGHTTIME_DEACTIVATION_HIGH_T_
LIMIT
REG_FREE_COOLING_OUTDOOR_
NIGHTTIME_DEACTIVATION_LOW_T_
LIMIT
REG_FREE_COOLING_ROOM_CANCEL_T
REG_FREE_COOLING_START_TIME_H I
REG_FREE_COOLING_START_TIME_M I
REG_FREE_COOLING_END_TIME_H I
REG_FREE_COOLING_END_TIME_M I
REG_FREE_COOLING_ACTIVE I
REG_FREE_COOLING_MIN_SPEED_
LEVEL_SAF
REG_FREE_COOLING_MIN_SPEED_
LEVEL_EAF
Sig.
Modbus Reg. type Mod-
Holding Register
I*
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
2504 0 100
2505 0 1
2506 0 1
Max
Min
bus
Adr.
4101 1
4102 120 300
4103 70 300
4104 70 300
4105 120 300
4106
4107 0 59
4108
4109 0 59
4111 0 1
4112 3 5
4113 3 5
Temperature offset for heating during Eco
mode
Enabling of eco mode
Indicates if conditions for ECO mode are
active (low temperature)
Description
Indicates if free cooling is enabled
Minimum of highest daytime temperature
for start of free cooling.
Highest night temperature limit for
termination free cooling
Lowest night temperature limit for
termination free cooling
Lowest temperature room temperature for
termination of free cooling
Start time of free cooling night-period, hour.
Valid range is from 0 to 8 and from 21 to
23.
Start time of free cooling night-period,
Minute
End time of free cooling night-period, hour.
Valid range is from 0 to 8 and from 21 to
23.
End time of free cooling night-period,
Minute
Indicates if free cooling is being performed
Minimum speed level during free cooling,
SAF.3: Normal4: High5: Maximum
Minimum speed level during free cooling,
EAF.3: Normal4: High5: Maximum
2.14 Week Schedule
Symbolic register name
REG_FREE_COOLING_ON_OFF I
REG_WS_T_OFFSET_ACTIVE
REG_WS_T_OFFSET_INACTIVE
REG_WS_DAY1_PRD1_START_H I
REG_WS_DAY1_PRD1_START_M I
REG_WS_DAY1_PRD1_END_H I
REG_WS_DAY1_PRD1_END_M I
| 30
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
4101 1
5001 -100 0
5002 -100 0
5003 0 23
5004 0 59
5005 0 23
5006 0 59
Indicates if free cooling is enabled
Temperature offset during active week
schedule.
Temperature offset during inactive week
schedule.
Monday, Period 1, start
Monday, Period 1, end
| Modbus variable list
12
Symbolic register name
REG_WS_DAY1_PRD2_START_H I
REG_WS_DAY1_PRD2_START_M I
REG_WS_DAY1_PRD2_END_H I
REG_WS_DAY1_PRD2_END_M I
REG_WS_DAY2_PRD1_START_H I
REG_WS_DAY2_PRD1_START_M I
REG_WS_DAY2_PRD1_END_H I
REG_WS_DAY2_PRD1_END_M I
REG_WS_DAY2_PRD2_START_H I
REG_WS_DAY2_PRD2_START_M I
REG_WS_DAY2_PRD2_END_H I
REG_WS_DAY2_PRD2_END_M I
REG_WS_DAY3_PRD1_START_H I
REG_WS_DAY3_PRD1_START_M I
REG_WS_DAY3_PRD1_END_H I
REG_WS_DAY3_PRD1_END_M I
REG_WS_DAY3_PRD2_START_H I
REG_WS_DAY3_PRD2_START_M I
REG_WS_DAY3_PRD2_END_H I
REG_WS_DAY3_PRD2_END_M I
REG_WS_DAY4_PRD1_START_H I
REG_WS_DAY4_PRD1_START_M I
REG_WS_DAY4_PRD1_END_H I
REG_WS_DAY4_PRD1_END_M I
REG_WS_DAY4_PRD2_START_H I
REG_WS_DAY4_PRD2_START_M I
REG_WS_DAY4_PRD2_END_H I
REG_WS_DAY4_PRD2_END_M I
REG_WS_DAY5_PRD1_START_H I
REG_WS_DAY5_PRD1_START_M I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
5007 0 23
5008 0 59
5009 0 23
5010 0 59
5011 0 23
5012 0 59
5013 0 23
5014 0 59
5015 0 23
5016 0 59
5017 0 23
5018 0 59
5019 0 23
5020 0 59
5021 0 23
5022 0 59
5023 0 23
5024 0 59
5025 0 23
5026 0 59
5027 0 23
5028 0 59
5029 0 23
5030 0 59
5031 0 23
5032 0 59
5033 0 23
5034 0 59
5035 0 23
5036 0 59
Monday, Period 2, start
Monday, Period 2, end
Tuesday, Period 1, start
Tuesday, Period 1, end
Tuesday, Period 2, start
Tuesday, Period 2, end
Wednesday, Period 1, start
Wednesday, Period 1, end
Wednesday, Period 2, start
Wednesday, Period 2, end
Thursday, Period 1, start
Thursday, Period 1, end
Thursday, Period 2, start
Thursday, Period 2, end
Friday, Period 1, start
| 30
Modbus variable list |
13
Symbolic register name
REG_WS_DAY5_PRD1_END_H I
REG_WS_DAY5_PRD1_END_M I
REG_WS_DAY5_PRD2_START_H I
REG_WS_DAY5_PRD2_START_M I
REG_WS_DAY5_PRD2_END_H I
REG_WS_DAY5_PRD2_END_M I
REG_WS_DAY6_PRD1_START_H I
REG_WS_DAY6_PRD1_START_M I
REG_WS_DAY6_PRD1_END_H I
REG_WS_DAY6_PRD1_END_M I
REG_WS_DAY6_PRD2_START_H I
REG_WS_DAY6_PRD2_START_M I
REG_WS_DAY6_PRD2_END_H I
REG_WS_DAY6_PRD2_END_M I
REG_WS_DAY7_PRD1_START_H I
REG_WS_DAY7_PRD1_START_M I
REG_WS_DAY7_PRD1_END_H I
REG_WS_DAY7_PRD1_END_M I
REG_WS_DAY7_PRD2_START_H I
REG_WS_DAY7_PRD2_START_M I
REG_WS_DAY7_PRD2_END_H I
REG_WS_DAY7_PRD2_END_M I
REG_WS_ACTIVE I
REG_WS_FAN_LEVEL_SCHEDULED I
REG_WS_FAN_LEVEL_UNSCHEDULED I
REG_WS_DAY1_PRD1_ENABLED I
REG_WS_DAY1_PRD2_ENABLED I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
5037 0 23
5038 0 59
5039 0 23
5040 0 59
5041 0 23
5042 0 59
5043 0 23
5044 0 59
5045 0 23
5046 0 59
5047 0 23
5048 0 59
5049 0 23
5050 0 59
5051 0 23
5052 0 59
5053 0 23
5054 0 59
5055 0 23
5056 0 59
5057 0 23
5058 0 59
5059 0 1
5060 1 5
5061 1 5
5101 0 1
5102 0 1
Friday, Period 1, end
Friday, Period 2, start
Friday, Period 2, end
Saturday, Period 1, start
Saturday, Period 1, end
Saturday, Period 2, start
Saturday, Period 2, end
Sunday, Period 1, start
Sunday, Period 1, end
Sunday, Period 2, start
Sunday, Period 2, end
Indicates that the current time lays within
the indicated intervals
Fan speed levels for SAF and EAF during
active week schedule.1: Off(1)2: Low3:
Normal4: High5: Demand(2)(1): Off
available if Manual Fan Stop is enabled.(2):
Demand available if demand control active
or external fan control enabled.
Fan speed levels for SAF and EAF during
inactive week schedule.1: Off(1)2: Low3:
Normal4: High5: Demand(2)(1): Off
available if Manual Fan Stop is enabled.(2):
Demand available if demand control active
or external fan control enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
| 30
| Modbus variable list
14
Symbolic register name
REG_WS_DAY2_PRD1_ENABLED I
REG_WS_DAY2_PRD2_ENABLED I
REG_WS_DAY3_PRD1_ENABLED I
REG_WS_DAY3_PRD2_ENABLED I
REG_WS_DAY4_PRD1_ENABLED I
REG_WS_DAY4_PRD2_ENABLED I
REG_WS_DAY5_PRD1_ENABLED I
REG_WS_DAY5_PRD2_ENABLED I
REG_WS_DAY6_PRD1_ENABLED I
REG_WS_DAY6_PRD2_ENABLED I
REG_WS_DAY7_PRD1_ENABLED I
REG_WS_DAY7_PRD2_ENABLED I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
5103 0 1
5104 0 1
5105 0 1
5106 0 1
5107 0 1
5108 0 1
5109 0 1
5110 0 1
5111 0 1
5112 0 1
5113 0 1
5114 0 1
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
Flag indicating if this period is enabled.
2.15 Time and Date
Symbolic register name
REG_TIME_YEAR I
REG_TIME_MONTH I
REG_TIME_DAY I
REG_TIME_HOUR I
REG_TIME_MINUTE I
REG_TIME_SECOND I
REG_TIME_AUTO_SUM_WIN I
REG_HOUR_FORMAT I
REG_DAY_OF_THE_WEEK I
REG_DST_PERIOD_ACTIVE I
REG_TIME_RTC_SECONDS_L I
REG_TIME_RTC_SECONDS_H I
REG_SYSTEM_START_UP_TIME_L I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
6001 0 2999 Current time
6002 1 12 Current time
6003 1 31 Current time
6004 0 23 Current time
6005 0 59 Current time
6006 0 59 Current time
6007 0 1
6008 0 1
6009 0 6
6010 0 1
6011
6012
6021
Flag indicating if DST is enabled.0: Daylight
saving time not enabled1: Daylight saving
time enabled
Indicaties the presentation of time in the
HMI. 24H/12H
Monday (0)...Sunday (6)
Now time in seconds. Lower 16 bits.
Now time in seconds. Higher 16 bits.
| 30
Modbus variable list |
15
Symbolic register name
REG_SYSTEM_START_UP_TIME_H I
REG_TIME_RTC I
2.16 Filter replacement
Symbolic register name
REG_FILTER_PERIOD I
REG_FILTER_REPLACEMENT_TIME_L I
REG_FILTER_REPLACEMENT_TIME_H I
REG_FILTER_PERIOD_SET I
REG_FILTER_REMAINING_TIME_L I
REG_FILTER_REMAINING_TIME_H I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
6022
6101
Min Max Description
bus
Adr.
7001 3 15
7002
7003
7004
7005
7006
RTC value in seconds, highest 16 bits
Filter replacement time in months
Timestamp of latest filter replcement, lower
16 bits
Timestamp of latest filter replcement,
higher 16 bits
Indicates that the
LastFilterReplacementTime shall be set
Now.
Remaining filter time in seconds, lower 16
bits.
Remaining filter time in seconds, higher 16
bits.
2.17 Analog Input values (Temperatures, CO2, RH)
Symbolic register name
REG_SENSOR_FPT
REG_SENSOR_OAT
REG_SENSOR_SAT
REG_SENSOR_RAT
REG_SENSOR_EAT
REG_SENSOR_ECT
REG_SENSOR_EFT
REG_SENSOR_OHT
REG_SENSOR_RHS I
REG_SENSOR_CO2S I
REG_SENSOR_PDM_EAT_VALUE I
REG_SENSOR_RHS_PDM I
REG_SENSOR_CO2S_1 I
REG_SENSOR_CO2S_2 I
REG_SENSOR_CO2S_3 I
Sig.
Modbus Reg. type Mod-
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
I*
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
bus
Adr.
12101 -400 800
12102 -400 800
12103 -400 800
12104 -400 800
12105 -400 800
12106 -400 800
12107 -400 800
12108 -400 800
12109 0 100
12115 0 2000
12544 -400 800
12136 0 100
12151 0 2000
12152 0 2000
12153 0 2000
Min Max Description
Frost Protection Temperature sensor value
(Water Heater)
Outdoor Air Temperature sensor (standard)
Supply Air Temperature sensor (standard)
Room Air Temperature sensor (accessory)
Extract Air Temperature sensor (accessory)
Extra Controller Temperature sensor
(accessory)
Efficiency temperature sensor (accessory)
Over Heat Temperature sensor (Electrical
Heater)
Relative Humidity Sensor (Accessory)
CO2 value (accessory)
PDM EAT sensor value (standard)
PDM RHS sensor value (standard)
CO2 sensor value - UI1 (accessory)
CO2 sensor value - UI2 (accessory)
CO2 sensor value - UI3 (accessory)
| 30
| Modbus variable list
16
Symbolic register name
REG_SENSOR_CO2S_4 I
REG_SENSOR_CO2S_5 I
REG_SENSOR_CO2S_6 I
REG_SENSOR_RHS_1 I
REG_SENSOR_RHS_2 I
REG_SENSOR_RHS_3 I
REG_SENSOR_RHS_4 I
REG_SENSOR_RHS_5 I
REG_SENSOR_RHS_6 I
REG_INPUT_ANALOG_UI_1 I
REG_INPUT_ANALOG_UI_2 I
REG_INPUT_ANALOG_UI_3 I
REG_INPUT_ANALOG_UI_4 I
REG_INPUT_ANALOG_UI_5 I
REG_INPUT_ANALOG_UI_6 I
REG_INPUT_DIGITAL_UI_1 I
REG_INPUT_DIGITAL_UI_2 I
REG_INPUT_DIGITAL_UI_3 I
REG_INPUT_DIGITAL_UI_4 I
REG_INPUT_DIGITAL_UI_5 I
REG_INPUT_DIGITAL_UI_6 I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
12154 0 2000
12155 0 2000
12156
12161 0 100
12162 0 100
12163 0 100
12164 0 100
12165 0 100
12166 0 100
12011 mV
12012 mV
12013 mV
12014 mV
12015 mV
12016 mV
12021 0 1
12022 0 1
12023 0 1
12024 0 1
12025 0 1
12026
CO2 sensor value - UI4 (accessory)
CO2 sensor value - UI5 (accessory)
CO2 sensor value - UI6 (accessory)
RH sensor value - UI1 (accessory)
RH sensor value - UI2 (accessory)
RH sensor value - UI3 (accessory)
RH sensor value - UI4 (accessory)
RH sensor value - UI5 (accessory)
RH sensor value - UI6 (accessory)
State of UI1
State of UI2
State of UI3
State of UI4
State of UI5
State of UI6
2.18 Digital Input functions
Symbolic register name
REG_SENSOR_RGS I
REG_SENSOR_DI_EXTERNAL_STOP I
REG_SENSOR_DI_LOAD_DETECTED I
REG_SENSOR_DI_FIRE_ALARM I
REG_SENSOR_DI_CHANGE_OVER_
FEEDBACK
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
12112 0 1
12308 0 1
12309 0 1
12311 0 1
12312 0 1
Rotating guard Sensor input
External Stop input value
Load Detected input value
Fire Alarm input value
Change over feedback value
| 30
Modbus variable list |
17
Symbolic register name
REG_DI_CONNECTION_1 I
REG_DI_CONNECTION_2 I
REG_DI_CFG_POLARITY_1 I
REG_DI_CFG_POLARITY_2 I
REG_INPUT_DIGITAL_DI_1 I
REG_INPUT_DIGITAL_DI_2 I
2.19 Output values
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
11401 0 18
11402 0 18
11421 0 1
11422 0 1
12031 0 1
12032 0 1
Indicates what kind of DI functionality is
connected to DI1.0: None /Away/ BYP/
Vacuum Cleaner/ Cooker Hood/ Crowded/
EMT/ External Stop/ Extra Controller Alarm/
Fireplace/ Holiday/ Refresh/ RGS/ Change
Over Feedback/ 14: Fire Alarm/
ConfigurableDI1 / ConfigurableDI2 /
ConfigurableDI3 / 18: Pressure Guard
Indicates what kind of DI functionality is
connected to DI1.0: None /Away/ BYP/
Vacuum Cleaner/ Cooker Hood/ Crowded/
EMT/ External Stop/ Extra Controller Alarm/
Fireplace/ Holiday/ Refresh/ RGS/ Change
Over Feedback/ 14: Fire Alarm/
ConfigurableDI1 / ConfigurableDI2 /
ConfigurableDI3 / 18: Pressure Guard
Polarity of DI1.0: NO1: NC
Polarity of DI1.0: NO1: NC
Boolean
Boolean
Symbolic register name
REG_SENSOR_RGS I
REG_DO1_AFTER_MUX I
REG_DO2_AFTER_MUX I
REG_DO3_AFTER_MUX I
REG_DO4_AFTER_MUX I
REG_AO1_AFTER_MUX I
REG_AO2_AFTER_MUX I
REG_AO3_AFTER_MUX I
REG_AO4_AFTER_MUX I
REG_AO5_AFTER_MUX I
REG_OUTPUT_OUTDOOR_EXTRACT_
DAMPER
REG_OUTPUT_Y2_ANALOG I
REG_OUTPUT_Y2_DIGITAL I
REG_OUTPUT_AO1 I
REG_OUTPUT_AO2 I
REG_OUTPUT_AO3 I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
I
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
12112 0 1
13301 0 1
13302 0 1
13303 0 1
13304 0 1
13311 0 100
13312 0 100
13313 0 100
13314 0 100
13315 0 100
14004 0 1
14103 0 100
14104 0 1
14351
14352
14353
Rotating guard Sensor input
Digital output after multiplexer
Digital output after multiplexer
Digital output after multiplexer
Digital output after multiplexer
Analog output after multiplexer
Analog output after multiplexer
Analog output after multiplexer
Analog output after multiplexer
Analog output after multiplexer
Indicates if Outdoor/Exhaust air damper
signal is On/Off
Heat Exchanger AO state.
Heat Exchanger DO state.0: Output not
active1: Output active
Voltage signal from AO1
Voltage signal from AO2
Voltage signal from AO3
| 30
| Modbus variable list
18
Symbolic register name
REG_OUTPUT_AO4 I
REG_OUTPUT_AO5 I
REG_OUTPUT_DO1 I
REG_OUTPUT_DO2 I
REG_OUTPUT_DO3 I
REG_OUTPUT_DO4 I
2.20 Alarms
Symbolic register name
REG_FILTER_ALARM_WAS_DETECTED I
REG_OUTPUT_ALARM I
REG_ALARM_SAF_CTRL_ALARM I
REG_ALARM_SAF_CTRL_CLEAR_ALARM I
REG_ALARM_EAF_CTRL_ALARM I
REG_ALARM_EAF_CTRL_CLEAR_ALARM I
REG_ALARM_FROST_PROT_ALARM I
REG_ALARM_FROST_PROT_CLEAR_
ALARM
REG_ALARM_DEFROSTING_ALARM I
REG_ALARM_DEFROSTING_CLEAR_
ALARM
REG_ALARM_SAF_RPM_ALARM I
REG_ALARM_SAF_RPM_CLEAR_ALARM I
REG_ALARM_EAF_RPM_ALARM I
REG_ALARM_EAF_RPM_CLEAR_ALARM I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
14354
14355
14361 0 1
14362 0 1
14363 0 1
14364 0 1
Min Max Description
bus
Adr.
7007
14003 0 1
15002 0 3
15003 0 1
15009 0 3
15010 0 1
15016 0 3
15017 0 1
15023 0 3
15024 0 1
15030 0 3
15031 0 1
15037 0 3
15038 0 1
Voltage signal from AO4
Voltage signal from AO5
State of DO1
State of DO2
State of DO3
State of DO4
Indicates if the filter warning alarm was
generated.
Sum Alarm DO
0: Output not active
1: Output active
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
| 30
Modbus variable list |
19
Symbolic register name
REG_ALARM_FPT_ALARM I
REG_ALARM_FPT_CLEAR_ALARM I
REG_ALARM_OAT_ALARM I
REG_ALARM_OAT_CLEAR_ALARM I
REG_ALARM_SAT_ALARM I
REG_ALARM_SAT_CLEAR_ALARM I
REG_ALARM_RAT_ALARM I
REG_ALARM_RAT_CLEAR_ALARM I
REG_ALARM_EAT_ALARM I
REG_ALARM_EAT_CLEAR_ALARM I
REG_ALARM_ECT_ALARM I
REG_ALARM_ECT_CLEAR_ALARM I
REG_ALARM_EFT_ALARM I
REG_ALARM_EFT_CLEAR_ALARM I
REG_ALARM_OHT_ALARM I
REG_ALARM_OHT_CLEAR_ALARM I
REG_ALARM_EMT_ALARM I
REG_ALARM_EMT_CLEAR_ALARM I
REG_ALARM_RGS_ALARM I
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
15058 0 3
15059 0 1
15065 0 3
15066 0 1
15072 0 3
15073 0 1
15079 0 3
15080 0 1
15086 0 3
15087 0 1
15093 0 3
15094 0 1
15100 0 3
15101 0 1
15107 0 3
15108 0 1
15114 0 3
15115 0 1
15121 0 3
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
| 30
| Modbus variable list
20
Symbolic register name
REG_ALARM_RGS_CLEAR_ALARM I
REG_ALARM_BYS_ALARM I
REG_ALARM_BYS_CLEAR_ALARM I
REG_ALARM_SECONDARY_AIR_ALARM I
REG_ALARM_SECONDARY_AIR_CLEAR_
ALARM
REG_ALARM_FILTER_ALARM I
REG_ALARM_FILTER_CLEAR_ALARM I
REG_ALARM_EXTRA_CONTROLLER_
ALARM
REG_ALARM_EXTRA_CONTROLLER_
CLEAR_ALARM
REG_ALARM_EXTERNAL_STOP_ALARM I
REG_ALARM_EXTERNAL_STOP_CLEAR_
ALARM
REG_ALARM_RH_ALARM I
REG_ALARM_RH_CLEAR_ALARM I
REG_ALARM_CO2_ALARM I
REG_ALARM_CO2_CLEAR_ALARM I
REG_ALARM_LOW_SAT_ALARM I
REG_ALARM_LOW_SAT_CLEAR_ALARM I
REG_ALARM_BYF_ALARM I
REG_ALARM_BYF_CLEAR_ALARM I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
I
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
15122 0 1
15128 0 3
15129 0 1
15135 0 3
15136 0 1
15142 0 3
15143 0 1
15149 0 3
15150 0 1
15156 0 3
15157 0 1
15163 0 3
15164 0 1
15170 0 3
15171 0 1
15177 0 3
15178 0 1
15184
15185 0
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
| 30
Modbus variable list |
21
Symbolic register name
REG_ALARM_MANUAL_OVERRIDE_
OUTPUTS_ALARM
REG_ALARM_MANUAL_OVERRIDE_
OUTPUTS_CLEAR_ALARM
REG_ALARM_PDM_RHS_ALARM I
REG_ALARM_PDM_RHS_CLEAR_ALARM I
REG_ALARM_PDM_EAT_ALARM I
REG_ALARM_PDM_EAT_CLEAR_ALARM I
REG_ALARM_MANUAL_FAN_STOP_
ALARM
REG_ALARM_MANUAL_FAN_STOP_
CLEAR_ALARM
REG_ALARM_OVERHEAT_
TEMPERATURE_ALARM
REG_ALARM_OVERHEAT_
TEMPERATURE_CLEAR_ALARM
REG_ALARM_FIRE_ALARM_ALARM I
REG_ALARM_FIRE_ALARM_CLEAR_
ALARM
REG_ALARM_FILTER_WARNING_ALARM I
REG_ALARM_FILTER_WARNING_CLEAR_
ALARM
REG_ALARM_FILTER_WARNING_
ALARM_ERROR_DURATION_COUNTER
REG_ALARM_TYPE_A I
REG_ALARM_TYPE_B I
REG_ALARM_TYPE_C I
Sig.
Modbus Reg. type Mod-
I
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
I
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
I
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
I
Holding Register
(Function 03/06/16)
I
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Read Input Register
(Function 04)
Min Max Description
bus
Adr.
15502 0 3
15503 0 1
15509 0 3
15510 0 1
15516 0 3
15517 0 1
15523 0 3
15524 0 1
15530 0 3
15531 0 1
15537 0 3
15538 0 1
15544 0 3
15545 0 1
15549
15901 0 1
15902 0 1
15903 0 1
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Alarm active/inactive.
0: Inactive
1: Active
2: Waiting
3: Cleared Error Active
Signal to clear the alarm
Counter for delay
Indicates if an alarm Type A is active
Indicates if an alarm Type B is active
Indicates if an alarm Type C is active
| 30
| Modbus variable list
22
2.21 System settings
Symbolic register name
REG_PASSWD_ADMIN I
REG_LOCKED_USER I
REG_LOCKED_FILTER I
REG_LOCKED_WEEK_SCHEDULE I
REG_PASSWD_USER_LEVEL_REQUIRED I
REG_PASSWD_FILTER_REQUIRED I
REG_PASSWD_WEEK_SCHEDULE_
REQUIRED
REG_PASSWD_PC_SETTINGS I
REG_PASSWD_PC_UNLOCKED I
REG_SUW_REQUIRED I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
I
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Read Input Register
(Function 04)
Holding Register
(Function 03/06/16)
Min Max Description
bus
Adr.
16001
16002 0 1
16003 0 1
16004 0 1
16051 0 1
16052 0 1
16053 0 1
16061
16062 0 1
16101 0 1
Administrator password.
Bit 12-15: digit 1
Bit 8-11: digit 2
Bit 4-7: digit 3
Bit 0-3: digit 4
Indicates if the User level is locked.
0: User menu locked
1: User menu not locked
Indicates if the Filter menu is locked.
0: menu locked
1: menu not locked
Indicates if the Week schedule menu is
locked.
0: menu locked
1: menu not locked
Home screen lock
Filter Change menu lock
Week schedule menu lock
Indicates if the start-up wizard shall be
activated.
2.22 Modbus
Symbolic register name
REG_COMM_MODBUS_ADDRESS I
REG_COMM_MODBUS_BAUD_RATE I
REG_COMM_MODBUS_PARITY I
2.23 Unit Backups
Symbolic register name
REG_FACTORY_RESET I
REG_SET_USER_SAFE_CONFIG I
REG_ACTIVATE_USER_SAFE_CONFIG I
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Sig.
Modbus Reg. type Mod-
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Holding Register
(Function 03/06/16)
Max
Min
bus
Adr.
17001 0 255
17002 0 10
17003 0 2
Min Max Description
bus
Adr.
30101 322-83228
30103 0 1
30104 0 1
Description
Modbus address of the MB.
Only relevant if the MB is a modbus slave.
Baudrate of the modbus connection
0=1200
1=2400
2=4800
3=9600
4=14400
5=19200
6=28800
7=38400
8=57600
9=76800
10=115200
Parity setting for the modbus connection.
0: None
1: Even
2: Odd
Activates setting of the parameters to their
default values.
Only activated by writing 3228 to this
register.
| 30
Revision table |
23
Symbolic register name
REG_USER_SAFE_CONFIG_VALID I
REG_SAFE_CONFIG_VALID I
3 Revision table
Main board
software
compatibility
1.5.0
1.6.0
2.0
Modbus Table
Revision
20180927 (Rev.
25)
20190116 (Rev.
29)
20200703 (Rev.
30)
20210301 (Rev.
36)
Sig.
Modbus Reg. type Mod-
Read Input Register
(Function 04)
Read Input Register
(Function 04)
30105
30106
Min Max Description
bus
Adr.
Change Log
-
Chapter 2.3. User modesRegisters:12316, ... , 12319 were added.1171, ... , 1190,1221, ... ,
1228,1621, ... , 1626,3114, ... , 3117,12316, ... , 12319 were addedRegisters:1141, ... ,
1144, 1161 have increase range.Changes related to Away and Holiday User modes, and 4
new user functions added - CDI 1-3 and Pressure Guard.
Chapter 2.5. Outdoor Airflow Compensation.Registers 1253. 1256 ... 1259 were added.
Compensation starting temperature for winter is added. Summer outdoor compensation is
added.
Chapter 2.18. Digital Input Functions.Registers 11401 and 11402.Max range changed from
14 to 18 adding new DI functions.
Chapter 2.20. Alarms.Registers 7007, 15544, 15545 and 15549 added.Filter warning
Alarm added.
Chapter 2.23. Unit Backups.Registers 30103, ... , 30106 added. Registers allow to set,
check and use safe user settings (store unit configuration in memory).
REGister 1131 edited
Added registers 12403, 12404, 12405, 2420, 2421, 2422, 2423, 12016, 12026, 12156,
12166, 15184, 15185,
| 30
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Modbus Variable List · · · en_GB · 2021-03-01 · 30
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