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
7.14Registersforalarms
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_ALARMS_ALL
801R
Reg+CoilCoilAddress12801:Filteralarm
CoilAddress12802:Fanalarm
CoilAddress12803:Notused
CoilAddress12804:Rotoralarm
CoilAddress12805:Frostalarm
CoilAddress12806:PCU-PBalarm
CoilAddress12807:T emperaturesensor
alarm
CoilAddress12808:Emergency
Thermostatalarm
CoilAddress12809:Damperalarm
CoilAddress12810:LowSSalarm
CoilAddress12811:Defrostalarm
CoilAddress12812:RHsensor
Coilvalue0:alarmnotactive
Coilvalue1:alarmactive
REG_ALARMS_RELAY_ACTIVE
802R
Reg+CoilCoiladdress12817:alarmrelayactive.
0:Relaynotactive.
1:Relayactive.
REG_ALARMS_ALL_DETAILED
803RReg
Allalarmags,includingtemperature
sensorstatusags.
Bit0:Filteralarm
Bit1:Fanalarm
Bit2:Rotoralarm
Bit3:Frostalarm
Bit4:PCU-PBalarm
Bit5:Emergencythermostatalarm
Bit6:Damperalarm
Bit7:LowSSalarm
Bit8:Defrostalarm
Bit9:RHsensoralarm
Bit10:Supplyairsensoralarm
Bit11:Extractairsensoralarm
Bit12:Exhaustair/Preheatersensoralarm
Bit13:Overtemperature/Frostprotection
sensoralarm
Bit14:Outdoorairsensoralarm
ModbusforResidentialunitsUserManual
D24810
15
SystemairSverigeAB