The electromagnetic flowmeter failed to modify the cumulative flow decimal value using Modbus communication
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A certain brand of electromagnetic flowmeter communicates with Siemens 1200; the PLC can reset and modify the integer part of the cumulative flow volume, but not the decimal part. When using a computer via serial port software to make modifications, only the integer part can be changed, while the decimal part cannot. I need help!
If the decimal part of the cumulative flow value in an electromagnetic flowmeter cannot be modified via Modbus communication, it may be that the device’s communication protocol does not support modifying the decimal part, or modifying it requires special commands or permissions. You can consult the user manual or technical documentation of the electromagnetic flowmeter to determine whether remote modification of the decimal part is supported. If there is no relevant information in the manual, you can contact the manufacturer’s technical support for assistance. At the same time, verify whether the settings of the PLC and the computer serial port software are correct, including register addresses, data format, etc. If all settings are correct and the decimal part still cannot be modified, it is likely a limitation of the device’s protocol. .
Note: The data type for the integer part is long, and the data type for the decimal part is int. Has the data type for the decimal part been set to long?
Do different data types require separate reset?