Connection To A Modbus Network; Read Access; Operating Data Read Access - Wolf WRS-K Installation And Operating Instructions Manual

4.1 Read access

4.1.1 Operating data read access

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4. Connection to a Modbus network

Via the Modbus interface, it is possible to gain read and write access to the
air handling control unit.
With read access, actual and set values can be checked, subject to
operating mode, via a Modbus network.
The values can be selected with function code 1 (read coils) or function code
3 (read holding register).
The following data is available for read access:
Description
Central fault
External system enable
Hygrostat humidity
Humidifier enable
System status
Operating status
1)
Pump, hot water
Pump, cold water
Heat source demand
Enable or pump HR
Outside/supply air damper
Exhaust/extract air damper
Enable gas valve
Enable or pump, adiabatic cooling
Enable convector heater (WO)
Thermostat, convector heater (WO)
Water supply line drain valve,
adiabatic cooling, open
Pan drain valve,
adiabatic cooling, open
Inlet valve,
adiabatic cooling, open
Supply air temperature
Outside temperature
Room temperature
Extract air temperature
Air quality (mixed gas)
Set room transducer
Indoor air humidity
Relative humidity, extract air
Relative humidity, supply air
Current set value, supply air
temperature
Current set temperature
Current set value, fresh air proportion
Current set speed, supply air fan
Current set speed, extract air fan
Current set value, relative humidity
Current set value, absolute humidity
Icing-up sensor
Actuating signal, heating
Actuating signal, cooling
Actuating signal, HR
Actuating signal, humidifier
Extract air temperature after
humidifier for adiabatic cooling
Actuation signal reheating
Unit Factor
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
°C 0.1
°C 0.1
°C 0.1
°C 0.1
V 0.1
°C 0.1
%r.h. 0.1
%r.h. 0.1
%r.h. 0.1
°C 0.1
°C 0.1
%
% 0.1
% 0.1
%r.h. 0.1
g/kg 0.1
°C 0.1
% 0.1
% 0.1
% 0.1
% 0.1
°C 0.1
% 0.1
1)
Type Index
- Coil 1
- Coil 2
- Coil 3
- Coil 4
- Coil 5
- Coil 117
- Coil 60
- Coil 18
- Coil 61
- Coil 62
- Coil 63
- Coil 64
- Coil 65
- Coil 87
- Coil 89
- Coil 90
- Coil 91
- Coil 92
- Coil 94
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Register 8
Register 9
Register 10
Register 11
1 Register 12
Register 13
Register 14
Register 23
Register 24
Register 27
Register 28
Register 29
Register 30
Register 31
Register 32
Register 33
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