MODBUS
Setting Description
Modbus Settings
Unit
Display of corresponding units.
> Select desired unit from drop-down menu.
Datatype
Float,
LongInt
> Select data transmission format from drop-down list.
Register > Enter register.
ID > Enter device / flow meter identification number (modbus address).
> Click + to add row for additional parameter or – to delete parameter.
Click Apply to save entries.
Further transmission parameters for Modbus RTU protocol:
Data bits: 8
Stop bits: 1
Parity: none
Realized functions: Read holding register: Function 03
OTE: N If no measurement values are available (for example in case of missing values due to sensor failure), the following
values are exported to Modbus interface:
• Maximum value for "Float" data type - FLT_MAX = 3.4028234663852886e+38
• Maximum value for "LongInt" data type - LONG_MAX = 2147483647
7.10.5. Serial
Settings for communication via serial interface.
Programming
Page 89 March 2021 HYB-UM-03155-EN-03
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