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_SYSTEM_PROG_V_LOW
504RReg
PCU-ECxMainprogramversion,low
number
REG_SYSTEM_BOOT_PROG_V_HIGH
505RReg
PCU-ECxBootprogramversion,high
number
REG_SYSTEM_BOOT_PROG_V_MID
506RReg
PCU-ECxBootprogramversion,middle
number
REG_SYSTEM_BOOT_PROG_V_LOW
507RReg
PCU-ECxBootprogramversion,low
number
REG_SYSTEM_PROG_STATE
508RRegProgramstate:
1:Mainprogram
2:Bootloader
3:Bootloading,bootloadingrequest
accepted
Note:thisregisterisalsosupportedbythe
bootloaderprogram.
REG_SYSTEM_START_BOOTLOADER
509WNRegWritinganone-zerovaluetothisregister
activatesthebootloader.
Thefollowingagsindicatewhatprograms
shallbedownloaded:
Bit0:DownloadCD3program
Bit8:DownloadPCU-EC3program
Note:thisfunctionisalsosupportedby
thebootloaderprogram.
Canonlybeaccessedbyaddressing
withFunctionCode6(“Writesingle
register”).
REG_SYSTEM_BOOT-
LOADER_FLAGS
510RRegBit0:Bootloadingisrequestedbythe
PCU-EC3card.
REG_SYS-
TEM_BRIDGE_CD3_FIRMWARE_H
518
R/W
Reg
ProgramversionforCD2/3availablein
Z-wavebridge,highnumber
REG_SYS-
TEM_BRIDGE_CD3_FIRMWARE_M
519
R/W
Reg
ProgramversionforCD2/3availablein
Z-wavebridge,middlenumber
REG_SYS-
TEM_BRIDGE_CD3_FIRMWARE_L
520
R/W
Reg
ProgramversionforCD2/3availablein
Z-wavebridge,lownumber
REG_SYSTEM_BRIDGE_PCU_EC3_F-
IRMWARE_H
521
R/W
Reg
ProgramversionforPCU-ECxavailablein
Z-wavebridge,highnumber
REG_SYSTEM_BRIDGE_PCU_EC3_F-
IRMWARE_M
522
R/W
Reg
ProgramversionforPCU-ECxavailablein
Z-wavebridge,middlenumber
REG_SYSTEM_BRIDGE_PCU_EC3_F-
IRMWARE_L
523
R/W
Reg
ProgramversionforPCU-ECxavailablein
Z-wavebridge,lownumber
REG_SYSTEM_CDX_PROG_V_H
524RReg
CDxprogramversion,highnumber.
Note:containstheprogramversionofthe
CDxpaneloperatedlatest.IftheCDxis
notoperatedsincepoweron,thevalue
is0.
REG_SYSTEM_CDX_PROG_V_M
525RReg
CDxprogramversion,middlenumber
Note:containstheprogramversionofthe
CDxpaneloperatedlatest.IftheCDxis
notoperatedsincepoweron,thevalue
is0.
ModbusforResidentialunitsUserManual
D24810
9
SystemairSverigeAB