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Chapter 17
Modbus signals
Regio Midi manual
Signal name
Type
Modbus
address
Scale
factor
Description
RC_Actual_X.RegioFanSpeed
X, 4
9
-
Indicate current fan speed:
0=Off
1=Fan speed 1 is on
2=Fan speed 2 is on
3=Fan speed 3 is on
RC_Actual_R.RegioNotUsedX
X, 4
10
-
Not used
RC_Actual_R.RegioRoomTemp
R, 4
11
10
Room temperature
RC_Actual_R.RegioRoomTempExt
R, 4
12
10
Room temperature from external sensor
RC_Actual_R.RegioRoomTempInt
R, 4
13
10
Room temperature from internal sensor
RC_Actual_R.RegioAIChangeOver
R, 4
14
10
Change-over temperature
RC_Actual_R.RegioAnaIn1
R, 4
15
10
Value of analogue input 1
RC_Actual_R.RegioUAnaIn1
R, 4
16
1
Value of universal analogue input 1
RC_Actual_R.RegioUAnaOut1
R, 4
17
-
Value of universal analogue output 1
RC_Actual_R.RegioUAnaOut2
R, 4
18
-
Value of universal analogue output 2
RC_Actual_R.RegioSetPAdjustment R, 4
19
10
Setpoint adjustment from internal
device
RC_Actual_R.RegioPIDSetP
R, 4
20
10
The controller setpoint
RC_Actual_R.RegioPIDOutput
R, 4
21
-
The controller output (0…100 %)
RC_Actual_R.RegioHeatOutput
R, 4
22
-
Heat output (0…100 %)
RC_Actual_R.RegioCoolOutput
R, 4
23
-
Cool output (0…100 %)
RC_Actual_R.RegioAI1Raw
R, 4
24
10
The raw value on analogue input 1
RC_Actual_R.RegioUI1Raw
R, 4
25
1
The raw value on universal input 1
RC_Actual_R.RegioUO3Output
R, 4
26
10
Value of universal output 3
RC_Actual_R.RegioUAnaOut3
R, 4
27
10
Value of universal analogue output 3
RC_Actual_R.RegioRoomCO2
R, 4
32
-
CO
2
input value (ppm)
Not used in this model
R, 4
44
-
RC_Actual_R.RegioVoltInput
R, 4
45
10
Value of 0…10 V DC input at AI2
RC_Actual_R.RegioRoomFlow
R, 4
46
10
Value of Room Air Flow at AI2
RC_Actual_R.RegioSupplyAirTemp R, 4
47
10
Supply air temperature from sensor
connected to A1
RC_Actual_R.RegioSupplyAirPIDo
ut
R, 4
48
-
Supply air controller output
RC_Actual_R.RegioPID2Setp
R, 4
49
10
Room controller output (scaled) and
supply air controller setpoint
Holding register
Signal name
Type
Modbus
address
Default
value
Scale
factor
Description
RC_Setp_X.AlaModStat
X, 3
1
-
-
Not used
RC_SetP_X.RegioFreeCoolAvailable
X, 3
2
0
-
Sequence order for Y2 and
Y3:
0=Y2 activates before Y3
1=Y3 activates before Y2
