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
NVM
Scaling
Access
(Reg./Coil)
Description/remarks
REG_HC_TEMP_IN3
216R10Reg
Temperatureonsensor3*10.Exhaustair
sensor/Preheatersensor.
REG_HC_TEMP_IN4
217R10Reg
Temperatureonsensor4*10.
Overheating/Frostprotectionsensor.
REG_HC_TEMP_IN5
218R10Reg
Temperatureonsensor5*10.Outdoor
airsensor.
REG_HC_TEMP_STATE
219R1
Reg+CoilCoil3489:Stateoftemperaturesensoron
input1
Coil3490:Stateoftemperaturesensoron
input2
Coil3491:Stateoftemperaturesensoron
input3
Coil3492:Stateoftemperaturesensoron
input4
Coil3493:Stateoftemperaturesensoron
input5
Coilstate:
0:nosensorfault
1:sensorfault
REG_HC_PRE-
HEATER_TYPE
220
R/W
YReg0:Nopreheater
1:Electricalpreheater
REG_HC_HEATER_TEMP_
SP_HOME_LEAVE
221RReg
Setpointsupportcontrolheaterduring
"Home/Leave"function.
REG_HC_TEMP_SP_DEG
222
R/W
Reg
Setpointfortemperatureregulation(*10).
REG_HC_INTERVAL_COOL-
ING_LOW
223
R/W
Reg
Combinedcontrolleroutputatwhich
coolingisatmaximum.
REG_HC_INTERVAL_COOL-
ING_HIGH
224
R/W
Reg
CombinedControlleroutputatwhich
coolingisatminimum.
REG_HC_INTERVAL_EX-
CHANGING_LOW
225
R/W
Reg
Lowerlimitforheatexchangingrangefor
combinedtemperatureregulator.
REG_HC_INTERVAL_EX-
CHANGING_HIGH
226
R/W
Reg
Upperlimitforheatexchangingrangefor
combinedtemperatureregulator.
REG_HC_INTERVAL_HEAT-
ING_LOW
227
R/W
Reg
Lowerlimitforheatingrangeforcombined
temperatureregulator.
REG_HC_INTERVAL_HEAT-
ING_HIGH
228
R/W
Reg
Upperlimitforheatingrangeforcombined
temperatureregulator.
REG_HC_P_BAND
229
R/W
Reg
P-Bandforcombinedtemperature
regulator(*10).Range:10-600
(correspondingto1to60°C)
REG_HC_I_TIME
230
R/W
Reg
I_Timeforcombinedtemperatureregulator
Range:1-240
0:nointegration
REG_PREHEATER_SET-
POINT
231
R/W
RegPreheatersetpoint.Range:-300-0
(correspondingto-30to0°C)
REG_PREHEATER_P_BAND
232
R/W
Reg
PreheaterP-Band(*10).Range:10-600
(correspondingto1to60°C)
REG_PREHEATER_I_TIME
233
R/W
RegPreheaterI-Time.Range:1-240
0:nointegration
REG_HC_OUT
234RReg
Outputofthesplitleveltemperature
controller.Range:0-100%.
REG_PREHEATER_OUT
235RReg
OutputofthePIcontrollerfortheelectrical
preheater.Range:0-100%.
REG_HC_TEMP_SP_DEG_
STEP
236RReg
Temperaturesettingstep(*10).
Example:10=1degreestep.25=2.5
degreestep.
1.Storedbywritingtoregister549(REG_STORE_NVM).
ModbusforResidentialunitsUserManual
D24810
5
SystemairSverigeAB