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Hi, problem was that the port of OPC was already used by different software. Try to change the port. I am sorry for this simple answer but I'm on ...

@twincontrols Thank you for your help, but it seems that only this app is running on the port 4840. Edit:I played a little bit with TwinCAT OPC U...

@sambba Thank you for your reply. I followed all these steps but still not able to find any endpoint.I also tried this video but with the same result:

@beckhoffsupport This is exactly what I did but there is still no endpoint. It seems that only one OPC UA server is running. I've really reache...

Hello,firstly, thank you for this explanation. It is very helpful.Secondly, I would have one question. I have been working on new library based on OOP...