Analytics & Calculations

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Write to output before analysis trigger initially

The customer has created some PI AF analyses these analyses trigger based on Event-Triggered. However, the customer his wondering if she can write a value to the output attribute before the analysis triggering for the first time. As of now, we onl...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 6 Declined

4 VOTE

Analytics functions Find with custom filter

I would like to have new analytics functions Find(attribute attname, time startTime, timeendTime, string filter) and TimeTrue(attribute attname, time startTime, timeendTime, string filter) similar to FindEq() and TimeEq() but with flexible filter ...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 1 Declined

4 VOTE

Analytics iteration

In case of only reading the attributes of the tag structure during an analysis/calculation, as tagname, tagnum, etc. could there be a way to put the attribute even though it's an output. Background: Customer is using analysis template where some o...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 Declined

4 VOTE

Add FFT calculations

Currently, PI has an FFT interface. I would like to take this functionality and implement it within Asset Analytics so that we can understand the dominant frequencies of our continuous process data without having to support a separate custom appli...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 2 Declined

4 VOTE

Equivalent to TagTot using multiplication, for example, to calculate a geometric mean

TagTot will provide the sum of event values for a given time range. Customers wishing to calculate the geometric mean could use an equivalent function that multiplies each value together. Additionally, a specific geometric mean function may be u...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 1 Declined

4 VOTE

Ability to filter analysis by backfilling status

It's sometimes very important to wait the end of a backfilling operation before ask for another backfilling operation. That's why, it should be convenient to filter the analysis list to point out the analysis still in progress.

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 Declined

4 VOTE

Allow analyses to trigger after MaxTime has passed

Trigger analyses "On Any" but also allow for a MaxTime and trigger after MaxTime has passed. Helpful to keep the timestamp current.

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 Declined

3 VOTE

Preserve variable-attribute mapping upon attribute path change

Currently, if a variable is mapped to an attribute and the attribute's AF path changes, the variable must be remapped to the attribute. Instead of relying on the attribute's full path to identify the attribute, each attribute should be identified...

Kenneth Barber over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 5 Declined

3 VOTE

AF function PrevEvent() should return timestamp of previous event even if data is "No Data"

Normally AF function PrevEvent() returns the timestamp of the previous event for a specified timestamp. But if the previous event is system digital state "No Data" it does not return the timestamp but again system digital state "No Data". That is...

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 3 Declined

3 VOTE

Analysis with conditional timestamp override

Currently it is only possible to specify one timestamp override per analysis. I would like a way to set a conditional based timestamp override that way the output timestamp could vary based on the result of an analysis.

Guest over 2 years ago in AVEVA™ PI Server / Analytics & Calculations 1 Declined

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