An OPC UA connection shows connected and the data does populate and I can get the live data from an OPC tag from that device. The problem is that the OPC connection faults for about 2 seconds when the tag is populated by the OPC device. It auto recovers and the data does change in the tag after the fault (not before). The device does periodically fault in between the tag changes, but not every time (maybe 1 in 10 times).
I spoke with vendor for the OPC device and they are checking into what could be happening, but they see no errors in their error logs at all. They also have similar devices we communicate with via OPC connections that never fault. Sure seems like the OPC device is causing the issues, but wanted to check on the Ignition side just in case.
Does anyone have any ideas on what would cause this type of behavior (either from the OPC device or from Ignition)? Are there any settings that would fix the problem? I tried adjusting the “keep alive failures allowed” setting, but it did not help.