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I was able to reproduce the "Error reading system digital state" message by deleting the PtCreated digital state from the tag using PI SMT's Archive Editor.
After that I added values to the tag using the Archive Editor, then went back to the Point Builder window and hit Refresh, and the message was changed to the correct value.
Are you sure you used the refresh button to update the value on the Point Builder window?
- Do you have a collective? Does this happen for both primary and secondary members?
- Did you run PI SMT as administrator?
- Do you have r/w permissions to the PI Point Database Security and also to these tags?
Thank you Victor,
adding a value in Archive Editor and then removing it did the trick.