12:24, EEST
February 4, 2021
13:05, EEST
Moderators
February 11, 2020
Hello,
This appears to be a bug in Historian. If the Historian service is started when there is no connection to a Source Server, the service will periodically attempt to create MonitoredItems for Collection Items and, due to the lack of connection to the Source Server, this will fail and this failure is logged into valuehistory table. While logging this failure once is a good thing as it makes clear why there is no data for a Collection Item, logging it multiple times clutters the valuehistory table for no real benefit.
This bug might be fixed in a future update. If you would need a fix urgently, contact sales@prosysopc.com
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