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I have  a connection to a PI system that includes, amongst other things, lab data (originating from LIMS) and PI-AF calculations. 

I have a PI-AF calculation that is making use of a lab tag. 

This week, an invalid entry was made in LIMS for the lab tag and the value was subsequently substituted/updated in PI. I recalculated/backfilled the associated PI-AF calculation and trends of both the lab and PI-AF calculation is correct/accurate in PI. The configuration of the lab tag was also  modified to force the step attribute to 1, so that values appear in a staircase format in PI.

I would like these changes to be reflected in Trendminer, so I tried refreshing the index for both the lab tag and the calculation and that did not appear to do the job. Incorrect values that had been recalculated in PI are still showing in Trendminer. And the lab tag still is not represented in staircase format.

What am I missing?

Hi Yves,

The reason the tag type did not change is because the tm-compute service saves the tag type in its cache memory. The solution here is to restart the tm-compute service in Edge manager.

You can access Edge manager by browsing to https://<TrendMinerURL>/edge.

Restart the service by clicking the button next to the blue arrow as indicated in the screenshot below:

In case you don’t have admin permissions you should contact your TrendMiner administrator to access Edge manager and restart the service.

After restarting the service, please reindex the tag again. This should solve the issue and your tag should have the correct tag type and data.

Best regards,

Tom Mingneau

 

Tom, 

Our System Admin  has restarted the service and this worked perfectly! 

Thank you.

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