I have a SINUMERIK CNC controller that has an internal OPC UA server that I am trying to connect to. I get a connection rejected message when I try and add the OPC UA client in Ignition.

Does anyone have experience connecting to one of these? I am not an expert at Siemens and so I might be missing something very obvious.

That’s at the network level, like a wrong TCP port or a firewall blocking the port.

Okay, that seems to be the consensus with Siemens as well. I just can’t figure out what is blocking that port.

Thank you for confirming!