User Manual

Page 21
40024
Read /
Write
Unoccupied Fan
Mode
3 Fan Speed Mode
1 = Low (Fan Auto)
2 = Med (Fan Auto)
3 = High (Fan Auto)
4 = Low (Fan On)
5 = Med (Fan On)
6 = High (Fan On)
1 Fan Speed Mode
0 = Fan Auto
4 = Fan On
40025
Read /
Write
Backlight
0 = On with Button Press only
1 = Always On (High)
2 = Always On Low - High With Button Press
40026
Read /
Write
Remote “SI & Com
0-V Temperature
Input Function
0 = Replace On Board Sensor with Remote
1 = Average On board Sensor with Remote
2 = Modbus Use Only (e.g. Coil Temp
Monitor)
3: 2 pipe monitor
40027
Read /
Write
Digital Input
Function
0 = Occupancy Initiate
1 = Chime Door Bell
2 = Input Disabled (Ver 3.09+)
40028
Read /
Write
Reset Fan Mode
0 = Leave fan mode unchanged
1 = Reset fan to Auto at switch off
40029
Read /
Write
Belimo Mode
0 = Standard 0-10V Valve Logic
1 = Belimo 6V = Off 3 Way Valve Logic
40030
Read /
Write
Modbus Address
1 to 255
40031
Read /
Write
Baud Rate
1 = 4.8Kbs
2 = 9.6kbs
3 = 19.2Kbs
40032
Read Only
Digital Input Status
0 = Open
1 = Closed
40033
Read Only
Internal Sensor
Value
Value / 10 (e.g. 23.3°C = 233)
40034
Read Only
Remote Sensor
Value
Value / 10 (e.g. 21.8°C = 218)
Version 3.09+ firmware provides the ability for Modbus to override all the SMT-131 outputs.
(5 x relays & 3 x 0-10v).
Note - To protect equipment functions the following rules apply.
To override register
40035 (W relay).
The anticycle timer must be OFF. (SW 5=Off).
To override register
40036 (Y relay)
The mode must be Heat Cool (Sw2=OFF) and the anticycle timer must be OFF. (SW 5 = Off)
To override register
40037 (High fan relay)
Single fan speed (Sw1=OFF) must be selected and the mode must be Heat Cool (Sw2=OFF)
To override register
40038 (Med fan relay)
Single fan speed (Sw1=OFF) must be selected and the mode must be Heat Cool (Sw2=OFF)
To override register
40039 (Low fan relay)
The mode must be Heat Cool (Sw2=OFF)