IM numeric log data not returned to Plant Explorer

Problem:

Plant Explorer numeric log tools like Trend Aspect and Log Configuration Status tab return nothing when an IM log is selected.

Symptoms:

Doing a Read from the Status Tab of an IM log on the Log Configuration Aspect returns nothingSelecting an IM log on a Trend Aspect returns no data

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Asked 13 years ago

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Answers

Cause: Affinity has been configured on the Basic History Service and neither the IM or All Nodes has been added to the Affinity Definition Aspect. The result is that requests for IM data can not be directed to the IM because Affinity prevents it.

Resolution:

Either add All Nodes, as shown below, or IM node to the Affinity Definition Aspect that is assigned to the Basic History Service. Requests will begin working right after the aspect changes are applied.