AnsweredAssumed Answered

Substitution Parameters in AF Analysis Templates?

Question asked by James Devine on Jan 8, 2016
Latest reply on Jan 19, 2016 by James Devine

Hello!

 

In PI System Explorer I would like to know the proper syntax for using substitution parameters in Analysis Templates. This is an example of the hard coded 'TagAvg' expression:

 

NameExpression
PITagAverageTagAvg('Attribute_Name', 'y', 't')

 

I want to substitute the 'y' and the 't' for string attributes located in a parent and/or grandparent element. I have tried dozens of substitution parameters found in the PI System Explorer User Guide to no avail. I have tried putting them in parentheses inside the single quotes, etc., etc.

 

I have tried sibling attributes too. My last attempt doing this, in addition to the 'Calc Failed', ended with this error message:

PITagAverage: Invalid start time: y. It must be time or time span.

Parameter name: 'startTime'

 

The last time I checked the value of 'y' was a suitable start time in PI system expressions. So what am I missing? Is there a resource about Analysis Templates substitution parameters I can turn to for guidance? I am especially interested in hearing from anyone who encountered this and solved it.

 

I appreciate your feedback.

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