Supplement to User Manual - ENGLISH Modbus Server
SU_ModbusV2-8, 2015-03-02 69
4
 state for the HPI quantities:
not available 0x0
ok 0x1
error 0x2
Example: measuring channel: B
physical quantity: standard volumetric flow rate
value: positive flow direction
Modbus register address = 2000 + 611 = 2611