We’re using a Siemens ET200 Open Controller which is basically a Windows 7 embedded system with a soft-PLC & I/O grafted in. The PLC runs on the same hardware but on a different subnet than Windows. The PLC runs its own OPC UA server.
After installing Ignition the PLC/HMI comms stopped working. Also, I never could get Ignition to connect with the soft-PLC or the OPC UA server on the PLC. I tried changing ports, changing IPs, adding secondary IPs, turning SSL on/off, regular & edge versions, and [of course] rebooting ad nauseum.
I was able to connect to both the PLC and the OPC UA server from another PC running Ignition (and setup EAM). Uninstalling Ignition fixes the HMI comms problem but then I can’t have Ignition :P.
I’d love to have some direction in troubleshooting the issue(s). Thanks in advance for you help.