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
7.3Registersforthedamper
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_DAMPER_PWM
301RReg
Outputvalueforexchanger.0-100
correspondto0to10V .
7.4Registersfortherotor
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_ROTOR_STATE
351RReg
Statefortherotorcontrolstatemachine.
0:Normal
1:Rotorfaultassumed
2:Rotorfaultdetected
3:Summermodeconditionsvalid,but
summermodenotyetactive.
4:Summermode
5:WaitingtogooutofManualsummer
modeduetotemperatureconditions
6:Manualsummermode
7:Rotorcleaningduringsummermode
8:Rotorcleaningduringmanualsummer
mode
9:Fansoff
10:Rotorcleaningduringfansoff
11:Rotorfault,conditionsforrotorfault
notvalidanymore
REG_ROTOR_RELAY_ACTIVE
352R
Reg+CoilCoil5617:rotorrelayactive.
0:notactive
1:active.
REG_SYSTEM_ROTOR_TYPE
353
R/W
Reg
Indicatesthetypeofrotorcontrol:
0:On/offcontrol
1:Variablecontrol
REG_SYSTEM_PASSIVE_HOUSE
354
R/W
Reg0:Passivehousemodenotactive
1:Passivehousemodeactive
RegisterintroducedinPCU-EC4program
version5.09.00
7.5RegistersforRHsensor
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_RH_SENSOR_VALUE
381RReg
RHsensorvalue(in%).
Reserved
REG_RH_SENSOR_DATA_VALID
383RReg
IndicatesthatvaliddatafromtheRH
sensorisavailable.
ModbusforResidentialunitsUserManual
D24810
6
SystemairSverigeAB