Modbus for residential D24810 User manual(A007)
Table Of Contents
- 1 Introduction
- 2 Transmission modes
- 3 Physical layer
- 4 Address
- 5 Notes
- 6 Wiring
- 7 Modbus variable list
- 7.1 Registers for fan control
- 7.2 Registers for heater control
- 7.3 Registers for the damper
- 7.4 Registers for the rotor
- 7.5 Registers for RH sensor
- 7.6 Registers for the week program
- 7.7 Registers for system parameters
- 7.8 Registers for clock
- 7.9 Registers for the filter
- 7.10 Registers for VTC defrosting
- 7.11 Register for VR/VTR defrosting
- 7.12 Registers for the digital inputs
- 7.13 Registers for PCU-PB
- 7.14 Registers for alarms
- 7.15 Register for demand control
- 7.16 Register for wireless network
- 7.17 Registers for RH transfer control
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_FAN_SYSTEM_CURVE_EF
137
R/W
YReg
Systemcurveforextractfan.Valuecan
befrom1to10.
REG_FAN_CONTROL_TYPE
138
R/W
Reg
Typeoffancontrol:
0:Airow
1:Speed
REG_FAN_INTERLOCK
139RReg
InterlockNOrelaystate:
0:Relayoff
1:Relayactive
1.Storedbywritingtoregister549(REG_STORE_NVM).
7.2Registersforheatercontrol
NameRegister
address
RorR/W
NVM
Scaling
Access
(Reg./Coil)
Description/remarks
REG_HC_HEATER_TYPE
201
R/W
Y1Reg0:noheater
1:Waterheater
2:Electricalheater
3:Other
REG_HC_COOLER_TYPE
202
R/W
Y1Reg0:nocooler
1:watercooler
REG_HC_WC_SIGNAL
204R1Reg
Signaltocooleroutput(in%)
REG_HC_WH_SIGNAL
205R1Reg
Signaltoanalogheateroutput(in%)
REG_HC_FPS_LEVEL
206
R/W
Y1RegFrostprotectionlevel.Allowedvalues:70,
80,90,100,110,120=7,8,9,10,11,12
°C.
REG_HC_TEMP_LVL
207
R/W
Y
1
RegTemperaturesetpointlevel:
0:Manualsummermode.
1to5:correspondtotemperaturelevels
asgivenbyREG_HC_TEMP_LVL1to
REG_HC_TEMP_LVL5.
6to29:extensionoflevels1to5.
REG_HC_TEMP_SP
208R1RegT emperaturesetpoint.
REG_HC_TEMP_LVL1
209R10Reg
Temperaturelevel1*10.Note:from
PCU-ECxprogramversion5.01.00,this
registerisnotsupportedanymore.
REG_HC_TEMP_LVL2
210R10Reg
Temperaturelevel2*10.Note:from
PCU-ECxprogramversion5.01.00,this
registerisnotsupportedanymore.
REG_HC_TEMP_LVL3
211R10Reg
Temperaturelevel3*10.Note:from
PCU-ECxprogramversion5.01.00,this
registerisnotsupportedanymore.
REG_HC_TEMP_LVL4
212R10Reg
Temperaturelevel4*10.Note:from
PCU-ECxprogramversion5.01.00,this
registerisnotsupportedanymore.
REG_HC_TEMP_LVL5
213R10Reg
Temperaturelevel5*10.Note:from
PCU-ECxprogramversion5.01.00,this
registerisnotsupportedanymore.
REG_HC_TEMP_IN1
214R10Reg
Temperatureonsensor1*10.Supplyair
sensor.
REG_HC_TEMP_IN2
215R10Reg
Temperatureonsensor2*10.Extractair
sensor.
ModbusforResidentialunitsUserManual
D24810
4
SystemairSverigeAB