TN - 1500 Insight Data Source is disabled
Last updated: March 4th, 2026Description
- Author: Ernest Lee
- Published: March 4th, 2026
Details:
Description
This Tech Note addresses an issue where an AVEVA Insight data source connected to a Historian Server is disabled. 4This often triggers an email notification to the user. 5
Applies to: Historian version 2020 R2 SP1 and newer
Details
One of the Insight data sources has been disabled.
Excessive Data Age: The Historian was sending data to Insight that was more than 50 days old.
Licensing Limitations: The Historian is using a Development Studio license, which in this scenario only supports a one-day History duration.
Resolution
- Gather Information: Execute the following query to identify stuck items in the replication sync queue:
SELECT DATEDIFF(ss, ModStartDateTimeUtc, ModEnd Date TimeUtc) AS Dur, Replication SyncRequestKey, Replication TagEntityKey, RequestVersion, ModStartDateTimeUtc, ModEndDate TimeUtc, EarliestExecution DateTimeUtc, ExecuteState
FROM Replication SyncRequestinfo
ORDER BY ModStartDate TimeUtc
2. Verify Specific Tags: Using the results from the first query, replace the placeholders below to investigate specific tags and history ranges:
Select * from Replication TagEntity where Replication Tag EntityKey = <Enter key here>
Select * from History where Tagname = 'Enter tagname here' and DateTime >= '<Enter ModStartDateTimeUtc>' and DateTime <= '<Enter ModEndDateTimeUtc>' and wwTimeZone = 'UTC'
3. Clear Sync Queue: To resolve stuck items and license violations (such as QD 33), you must clear the queue.
Step A: Shut down, back up, and clear the Replication StoreForward folder.
Step B: Run the following query to truncate the table:
TRUNCATE TABLE ReplicationSyncRequest
4. Re-enable:
Contact AVEVA support to re-enable the data source.
Give feedback about this article
Recommended articles
[ISS Support Case] No Data In A Deployed OMI Application
Got 3 servers 1 gr 1 AOS 1 IO developed application on GR server tests view apps and OMI app is working. On AOS server and open application OMI screen appears Gone to object viewer sees PLC objects (NOT in OMI application) In SMC Platform an engine running on scan. LM 4.0.1 OI 2023R2
Read More[ISS Support Case] Historian data not showing
No Historian data is displaying for any tags prior to 5/8 at about 11:00 AM. Found no errors in the SMC log or Windows System log from 5/8 at midnight through 5/10 at 11:59 PM. There was a Historian warning in the Windows App log on 5/9 at 1:00 AM "Null value / quality mismatch - value / quality is overwritten to conform with OPC specification". No events were known to have happened on 5/8 that would have caused this issue. Have requested a reboot of our Historian server at 4:30 PM this afternoon to see if the problem would be resolved by a reboot. Would just like to check and see if there is any other investigation that could be performed or any other remedy that we might be able to perform to resolve the issue in lieu of a Historian server reboot.
Read More[ISS Support Case] Aveva Historian Data retrieval bug
Client has 2 user accounts that have access to Historian Server. Client has no problem viewing the trend data in account 1, but when adding the same tag to trend on account 2, the tag flatlines. Queried data appears correct. This seems to only affect analog tags.
Read More