Datasheet:

https://files.seeedstudio.com/products/101990666/res/RS485%20&%204-20mA%20Current%20pH%20Sensor%20User%20Manual-S-pH-01.pdf

To set the slave address, the ModbusRegisterWriter can be used.

The ModbusRegisterWriter already sets the correct communication parameters given in the datasheet:



PHSensor function block to retrieve PH value:

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Industrielle styresystemer - NTNU Ålesund - Automasjon