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