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Writing data to the server using Modbus TCP/IP

ronaldotukchro Nov 18, 2025 07:57 PM

Hi, I have a sensor that outputs three variables, and I need to write those three variables to a server using Modbus TCP/IP. I would do this with the ModbusMaster() instruction, but where would I configure the server's IP address? TCPOpen?
Could someone help me?

JDavis Nov 18, 2025 11:29 PM

Use TCPOpen() to open the connection. Use the socket number returned by TCPOpen for the comport in ModbusMaster().

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