Issue
When viewing a Xenta log through Vista, estimated values are seen at a specific time period. Taking note of these times, a pattern develops.
Product Line
TAC Vista
Environment
Vista 5.x.x
Cause
The trend log backup object $Backup_LDB has been set to run and has the Retrieve trend log data option set. This causes Vista to go to every Xenta trend log and retrieve the latest values.
On large sites with many logs, this can take up to 8 hours and create excessive traffic on the Lonworks network. This excessive traffic can cause Xenta logs to fail in the upload process giving estimated values.
Resolution
Uncheck the Xenta Retrieve trend log data option and backup the values in the SQL database only.