Universal Wall-Mount Controller
Modbus Communication Module User Guide
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Register
Index
Description
Data Type
Range
Writable
400
10
System Status 2.
Bit String
[B1, B3-B6, B14]
:
Reserved
B0: Selector Switch Status
0 = Remote Mode, 1 = Local Mode
B2: CO2 Alarm
0 = Normal, 1 = Alarm
B7: AL_Override
0 = Off, 1 = On
B8: AL_WindowOpened
0 = Off, 1 = On
B9: AL_DoorOpened
0 = Off, 1 = On
B10: AL_BI1
0 = Off, 1 = On
B11: AL_BI2
0 = Off, 1 = On
B12: AL_AI1
0 = Off, 1 = On
B13: AL_AI2
0 = Off, 1 = On
B15: AL_OverHeat
0 = Off, 1 = On
RO
400
11
Internal temperature sensor reading.
Signed
Scale 100
Unit: ºC/ºF, Range: 0ºC to 50ºC or 32ºF to 122ºF
Value x 100 (e.g. 23°C = 2300 or 33ºF = 3300)
RO
400
12
External temperature sensor reading.
Signed
Scale 100
Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF
Value x 100 (e.g. 23°C = 2300 or 33ºF = 3300)
RO
400
13
Changeover temperature sensor reading.
Signed
Scale 100
Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF
Value x 100 (e.g. 23°C = 2300 or 33ºF = 3300)
RO
400
14
Control temperature reading.
Signed
Scale 100
Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF
Value x 100 (e.g. 23°C = 2300 or 33ºF = 3300)
W
400
15
Internal humidity sensor reading.
Only available on model TUHB24C6X2.
Unsigned
Scale 10
Unit: % RH, Range: 5%RH to 100%RH,
Value x 10 (e.g. 30%RH = 300)
RO
400
16
External humidity sensor reading.
Unsigned
Scale 10
Unit: % RH, Range: 5%RH to 100%RH,
Value x 10 (e.g. 30%RH = 300)
RO
400
17
Analog input 1 reading.
Signed
Scale 100
Unit: Volts or ºC/ºF, Range: 0V to 10V, -40 to 100ºC or -40 to 212ºF,
0 (open), 1 (close).
Value x 100 (e.g. 3 V = 300/18°C = 1800 or 33ºF = 3300)
RO
400
18
Analog input 2 reading.
Signed
Scale 100
Unit: Volts or ºC/ºF, Range: 0V to 10V, -40 to 100ºC or -40 to 212ºF,
0 (open), 1 (close).
Value x 100 (e.g. 3 V = 300/18°C = 1800 or 33ºF = 3300)
RO
400
19
CO2 sensor value in ppm.
Signed
Scale 1
Unit: ppm, 100 to 5000,
Value x 1 (e.g. 500 ppm = 500)
RO
