I have three PLCs connected to a GSM router (please see the image attached). I want to connect them with my WinCC project. I create in Tag Management three different connections, but I don't know how to reference each PLC. It should be like:

10.234.55.8:PLC1_Port for PLC1;

10.234.55.8:PLC2_Port for PLC2; 

10.234.55.8:PLC3_Port for PLC 3, but WinCC cannot reference the PLC in IP:Port format. My question is how could I set up the connections?

Closed cause question posted twice.

The second thread with the subject WinCC - PLC connection through internet is published within the conference SIMATIC WinCC.