How to connect a PLC to a Python script running on the computer

PLCnext Engineer
1

Hi,
I have a Python script running on my PC and I would like this script to communicate with the PLC which is also connected to the PC but I am not sure how to approach it, do it indirectly via some server or directly. Do you have any advice on how to do it best?

2

Hello,
Rest API, TCP/TLS ports. This two options come on mind for direct connection.
Best regards.

3

or OPC UA, if there is a suitable OPC UA client library available for Python.

4

You also can use our RSC library which is developed for exchanging data between Py and PLCnext runtime.

5

or OPC UA, if there is a suitable OPC UA client library available for Python.</p>

https://github.com/FreeOpcUa/opcua-asyncio