Modbus Server Supplement to User Manual - ENGLISH
62 SU_ModbusV2-8, 2015-03-02
Request of the State of Multiple Measured Values
For the start addresses and the offsets see Tab. 7.3 and Tab. 7.4.
The state addresses are references to the state registers from Tab. 6.3.
heat flow rate, totalizer for positive flow direction 34 35
heat flow rate, totalizer for negative flow direction 36 37
concentration 38 39
medium temperature (supply line) 40 41
medium temperature (return line) 42 43
medium pressure (supply line) 44 45
medium pressure (return line) 46 47
compressibility coefficient of the gas (gas measurement) 48 49
density 50 51
volumetric flow rate (net),
difference between the totalizers of the positive and negative flow direction
52 53
standard volumetric flow rate (net),
difference between the totalizers of the positive and negative flow direction
54 55
mass flow rate (net),
difference between the totalizers of the positive and negative flow direction
56 57
heat flow rate (net)
difference between the totalizers of the positive and negative flow direction
58 59
Example: measuring channel: B
physical quantities: medium temperature (supply line),
medium temperature (return line),
medium pressure (supply line),
medium pressure (return line)
Modbus register start address: 16000 + 40 = 16040
Modbus register range: 16040...16047
register number: 8
Tab. 7.3: Start addresses of the channels
channel start address
A 15200
B 16200
C 17200
D 18200
Z 19200
Y 20200
Tab. 7.2: Offset of the measured value
physical quantity (floating point number 32 bit) offset
lo word hi word
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