User Manual
Modbus RTU
Option module for PolluTherm
M H 6123 INT, page 3
4. Modbus data register list
Designation Modbus
Register
Modbus
Register Type
Modbus
Address
Data Value
Range
Unit
1
Read only (RO)
Read/write (R/W)
Firmware
Version
2
30001 or 40001 Input or Holding 0
Uint16
-
RO
Energy
30002 or 40002 Input or Holding 1
Int32
kWh, MWh,
MJ, GJ
RO
Energy
(Unit factor)
30004 or 40004 Input or Holding 3
UInt16
RO
Energy (Unit)
30005 or 40005 Input or Holding 4
4 char ASCII
RO
Energy (Float)
30007 or 40007 Input or Holding 6
IEEE754
RO
Volume
30009 or 40009 Input or Holding 8
Int32
l (dm
3
), m
3
RO
Volume
(Unit factor)
30011 or 40011 Input or Holding 10
UInt16
RO
Volume (Unit)
30012 or 40012 Input or Holding 11
4 char ASCII
RO
Volume (Float)
30014 or 40014 Input or Holding 13
IEEE754
RO
Flow
30016 or 40016 Input or Holding 15
Int32
l/h, m
3
/h
RO
Flow
(Unit factor)
30018 or 40018 Input or Holding 17
UInt16
RO
Flow (Unit)
30019 or 40019 Input or Holding 18
4 char ASCII
RO
Flow (Float)
30021 or 40021 Input or Holding 20
IEEE754
RO
Power
30023 or 40023 Input or Holding 22
Int32
W, kW
RO
Power
(Unit factor)
30025 or 40025 Input or Holding 24
UInt16
RO
Power (Unit)
30026 or 40026 Input or Holding 25
4 char ASCII
RO
Power (Float)
30028 or 40028 Input or Holding 27
IEEE754
RO
Inlet
temperature
(Fixed)
30030 or 40030 Input or Holding 29
Int16
0.01°C
RO
Inlet
temperature
(Float)
30031 or 40031 Input or Holding 30
IEEE754
°C
RO
Outlet
temperature
(Fixed)
30033 or 40033 Input or Holding 32
Int16
0.01°C
RO
Outlet
temperature
(Float)
30034 or 40034 Input or Holding 33
IEEE754
°C
RO
Temperature
difference
(Fixed)
30036 or 40036 Input or Holding 35
Int32
0.001°C
RO
Temperature
difference
(Float)
30038 or 40038 Input or Holding 37
IEEE754
°C
RO
Tariff Energy
30040 or 40040 Input or Holding 39
Int32
kWh, MWh,
MJ, GJ
RO
Tariff Energy
(Unit factor)
30042 or 40042 Input or Holding 41
UInt16
RO
Tariff Energy
(Unit)
30043 or 40043 Input or Holding 42
4 char ASCII
RO
Tariff Energy
(Float)
30045 or 40045 Input or Holding 44
IEEE754
RO
Cooling Energy 30047 or 40047 Input or Holding 46
Int32
kWh, MWh,
MJ, GJ
RO
Cooling Energy
(Unit factor)
30049 or 40049 Input or Holding 48
UInt16
RO
Cooling Energy
(Unit)
30050 or 40050 Input or Holding 49
4 char ASCII
RO
Cooling Energy
(Float)
30052 or 40052 Input or Holding 51
IEEE754
RO
Fabrication
Number
30054 or 40054 Input or Holding 53
Int32
-
RO
