Uncertain_LastKnownValue for OPCUA tags from PC

Ignition
1

Hello There,

I have been Struggling with Connecting with a PC outputting OPCUA tags. Initially I the connection with the PC kept dropping out every few seconds once I starting importing alot of tags(Over 100) but did not fault out when I had a few tags being read. In order to fix this I put some tags in a different Group(Sample Tags) and that stopped the connection dropping issue. However Now I am Getting Uncertain_LastKnownValue for all the tags I am importing from this PC in both Groups. Below is an image of the Logs and the Connection Parameters. Please let me know if more information is required in order to Help diagnose this issue.

Thank you!

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2

Whatever server you are connected to doesn’t appear to implement the SetMonitoringMode service, which is not optional. This server is broken.

You could probably work around this by creating a Tag Group for tags from this server and setting the OPC Data mode to Polled/Read instead of Subscribe.

You should report this as a bug to whoever this server is from.