alemueks Posted September 29, 2020 Report Share Posted September 29, 2020 Hi all, I have the following question. In a research Project we want to reach connectivity between (older) machines. For that, we want to make data from a PLC V430 available by using OPC UA. As V430 is not OPC UA-able, we want to connect the PLC to a RaPi and implement an OPC UA Server there. For that, can you please tell me, whether the communication between PLC V430 and RaPi is possible? What is the best way to communicate, Modbus tcp? Thank you very much for your Responses! Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted September 29, 2020 MVP 2021 Report Share Posted September 29, 2020 Modbus TCP would be the way to go. Get an Ethernet card for the V430 and set it up as a Modbus Slave. I did a quick search an found a Python Modbus library called pyModbus that should work for you. Joe T. 1 Quote Link to comment Share on other sites More sharing options...
alemueks Posted October 2, 2020 Author Report Share Posted October 2, 2020 thank you very much for your advice, you confirm me in my search results. We will try this with Modbus and pymodbus library. Greetings! Quote Link to comment Share on other sites More sharing options...
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