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_CDX_PROG_V_L
526RReg
CDxprogramversion,lownumber
Note:containstheprogramversionofthe
CDxpaneloperatedlatest.IftheCDxis
notoperatedsincepoweron,thevalue
is0.
REG_STORE_NVM
549WNReg
Writevalue165willstoresthefollowing
parametersinNVM:
•REG_FAN_SPEED_LEVEL
•REG_HC_TEMP_LVL
•REG_FAN_SF_FLOW_LOW
•REG_FAN_EF_FLOW_LOW
•REG_FAN_SF_FLOW_NOM
•REG_FAN_EF_FLOW_NOM
•REG_FAN_SF_FLOW_HIGH
•REG_FAN_EF_FLOW_HIGH
Allothervalues:nofunctionality.
Canonlybeactivatedbyaddressing
withFunctionCode6(“Writesingle
register”).
7.8Registersforclock
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_CLK_S
551
R/W
YReg
Clock:seconds(0..59)
REG_CLK_M
552
R/W
YReg
Clock:minutes(0..59)
REG_CLK_H
553
R/W
YReg
Clock:hours(0..23)
REG_CLK_D
554
R/W
YReg
Clock:dayofmonth(1..31)
REG_CLK_MNTH
555
R/W
YReg
Clock:month(1..12)
REG_CLK_Y
556
R/W
YReg
Clock:year(0=2000)
REG_CLK_WD
557
RReg
Clock:dayofweek(0..6:Monday..sunday)
7.9Registersforthelter
NameRegister
address
RorR/W
NVMAccess
(Reg./Coil)
Description/remarks
REG_FILTER_PER
601
R/W
YRegFilterreplacetimeinmonths
REG_FILTER_DAYS
602
R/W
YReg
Elapseddayssincelastlterreplacement
ModbusforResidentialunitsUserManual
D24810
10
SystemairSverigeAB