Data Integrity Intermittently Going to 0


I have an integer OPC tag that is intermittently going to 0 for less than a second, then coming back to 192. Is there a good first place to start to try to find out why this is happening?



I would think the most likely cause is an overloaded driver? So the polling is taking long enough that the tag goes stale shortly before the data arrives. Look at your device diagnostics page.

Thank you!