Modbus Variable List Release date: 20210301, Revision: 36 GB Document in original language | · 2.
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Contents 1 2 3 | 2.1 Information....................................................1 1.1 Physical layer ........................................1 1.2 Transmission modes ...............................1 Modbus variable list .........................................1 2.1 Demand Control .....................................1 2.2 User modes ..........................................2 2.3 Airflow Control ......................................6 2.4 Outdoor Airflow Compensation .................9 2.
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.
2 | Modbus variable list Symbolic register name Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr.
4 | Modbus variable list Symbolic register name Sig. Modbus Reg. type Modbus Adr. Min Max Description REG_USERMODE_MODE I Read Input Register (Function 04) 1161 0 12 Active User mode.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr. Min Max REG_PRESSURE_GUARD_AIRFLOW_ LEVEL_SAF I Holding Register (Function 03/06/16) 1177 0 5 Fan speed level for configurable pressure guard function. 0: Off 1: Minimum 2: Low 3: Normal 4: High 5: Maximum REG_PRESSURE_GUARD_AIRFLOW_ LEVEL_EAF I Holding Register (Function 03/06/16) 1178 0 5 Fan speed level for configurable pressure guard function.
6 | Modbus variable list Sig. Modbus Reg. type Modbus Adr. REG_SPEED_PRESSURE_GUARD_SAF I Read Input Register (Function 04) 1227 SAF speed value for low fan speed.(1): Depends on regulation type. Value can be %, RPM, Pressure or Flow REG_SPEED_PRESSURE_GUARD_EAF I Read Input Register (Function 04) 1228 EAF speed value for low fan speed.(1): Depends on regulation type.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr. Min Max REG_MANUAL_OVERRIDE_OUTPUT_ EAF_VALUE I Holding Register (Function 03/06/16) 13802 0 100 REG_USERMODE_MANUAL_AIRFLOW_ LEVEL_SAF I Holding Register (Function 03/06/16) 1131 0 4 Fan speed level for mode Manual. Applies to both the SAF and the EAF fan. 0: Off(1) 2: Low 3: Normal 4: High (1): value Off only allowed if contents of register REG_FAN_MANUAL_STOP_ ALLOWED is 1.
8 | Modbus variable list Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr.
10 | Modbus variable list Symbolic register name Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr.
12 | Modbus variable list 2.10 Moisture transfer control Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr. Min Max REG_FREE_COOLING_ACTIVE I Read Input Register (Function 04) 4111 0 1 Indicates if free cooling is being performed REG_FREE_COOLING_MIN_SPEED_ LEVEL_SAF I Holding Register (Function 03/06/16) 4112 3 5 Minimum speed level during free cooling, SAF. : Normal 4: High 5: Maximum REG_FREE_COOLING_MIN_SPEED_ LEVEL_EAF I Holding Register (Function 03/06/16) 4113 3 5 Minimum speed level during free cooling, EAF.
14 | Modbus variable list Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr.
16 | Modbus variable list Sig. Modbus Reg. type Modbus Adr. Min Max REG_WS_DAY7_PRD1_ENABLED I Holding Register (Function 03/06/16) 5113 0 1 Flag indicating if this period is enabled. REG_WS_DAY7_PRD2_ENABLED I Holding Register (Function 03/06/16) 5114 0 1 Flag indicating if this period is enabled. Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | 2.17 Analog Input values (Temperatures, CO2, RH) Sig. Modbus Reg. type Modbus Adr.
18 | Modbus variable list Sig. Modbus Reg. type Modbus Adr.
Modbus variable list | 2.19 Output values Sig. Modbus Reg. type Modbus Adr.
20 | Modbus variable list Sig. Modbus Reg. type Modbus Adr. Min Max REG_ALARM_SAF_CTRL_ALARM I Read Input Register (Function 04) 15002 0 3 Alarm active/inactive. 0: Inactive 1: Active 2: Waiting 3: Cleared Error Active REG_ALARM_SAF_CTRL_CLEAR_ALARM I Holding Register (Function 03/06/16) 15003 0 1 Signal to clear the alarm REG_ALARM_EAF_CTRL_ALARM I Read Input Register (Function 04) 15009 0 3 Alarm active/inactive.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr. Min Max REG_ALARM_RAT_CLEAR_ALARM I Holding Register (Function 03/06/16) 15080 0 1 Signal to clear the alarm REG_ALARM_EAT_ALARM I Read Input Register (Function 04) 15086 0 3 Alarm active/inactive.
22 | Modbus variable list Sig. Modbus Reg. type Modbus Adr. Min Max REG_ALARM_EXTRA_CONTROLLER_ ALARM I Read Input Register (Function 04) 15149 0 3 Alarm active/inactive. 0: Inactive 1: Active 2: Waiting 3: Cleared Error Active REG_ALARM_EXTRA_CONTROLLER_ CLEAR_ALARM I Holding Register (Function 03/06/16) 15150 0 1 Signal to clear the alarm REG_ALARM_EXTERNAL_STOP_ALARM I Read Input Register (Function 04) 15156 0 3 Alarm active/inactive.
Modbus variable list | Sig. Modbus Reg. type Modbus Adr. Min Max REG_ALARM_MANUAL_FAN_STOP_ CLEAR_ALARM I Holding Register (Function 03/06/16) 15524 0 1 Signal to clear the alarm REG_ALARM_OVERHEAT_ TEMPERATURE_ALARM I Read Input Register (Function 04) 15530 0 3 Alarm active/inactive.
24 | Revision table 2.22 Modbus Sig. Modbus Reg. type Modbus Adr. Min Max Description REG_COMM_MODBUS_ADDRESS I Holding Register (Function 03/06/16) 17001 0 255 Modbus address of the MB. Only relevant if the MB is a modbus slave.
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