AVEVA™ PI System™ Feedback Portal

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We created this site to hear your enhancement ideas, suggestions and feedback about AVEVA products and services. All of the feedback you share here is monitored and reviewed by the AVEVA product managers.

To start, take a look at the ideas in the list below and VOTE for your favorite ideas submitted by other users. POST your own idea if it hasn’t been suggested yet. Include COMMENTS and share relevant business case details that will help our product team get more information on the suggestion. Please note that your ideas and comments are visible to all other users.


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Status Completed
Product AVEVA™ PI Server
Categories Analytics & Calculations
Created by Guest
Created on Aug 20, 2022

RELATED IDEAS

Event-Weighted Summary Functions

Allow for Asset Analytics to support event-weighted summary functions (as opposed to time-weighted), such as average and count. This will allow for easily aggregating changes in digital tags, discrete sensor readings (e.g., bucket count), etc. This would allow Asset Analytics to easily perform many of the event-weighted functions of PI Totalizers.
  • ADMIN RESPONSE
    Aug 20, 2022
    Event weighted summaries with analysis arrays and event weighted options with some existing functions have been added and release with AF 2018 SP2.
  • Attach files
  • Guest
    Reply
    |     Aug 20, 2022
    Is this not the purpose of the TagMean() function? TagAvg() will perform a time-weighted average whereas TagMean() should perform an event-weighted average. I haven't verified but this is my assumption.
  • Guest
    Reply
    |     Aug 20, 2022
    TagMean does event weighted, but there's no way to get an event weighted total for example. The workaround is to multiply the tagmean by the event count, but even that is not a good workaround because bad values will not affect tagmean but will affect event count, so they need to be handled before the calculation is performed.
  • Matt Voll
    Reply
    |     Aug 20, 2022
    The original idea doesn't seem to specifically address Totalizing. Tagtot is a time weighted function. There is not an equivalent event-weighted function . . . this seems like a big gap in capability
  • Kenneth Barber
    Reply
    |     Aug 20, 2022
    https://pisquare.osisoft.com/thread/7591
  • Brent Bregenzer
    Reply
    |     Aug 20, 2022
    This could be applied to any of the standard statistical functions (TagMean, TagMax, etc.). For example a moving average over the last 20 sample values rather over the last 20 minutes.
  • Kelsey Bobeck
    Reply
    |     Aug 20, 2022
    Something like Excel's CountIf() would be incredibly helpful. It gets excessive always having to do workarounds or add additional tags to support a calculation. If you don't have an EA, that's not always feasible.
  • Guest
    Reply
    |     Aug 20, 2022
    I believe this request is slated to be included in AF 2018 R2. The original request is: Event-Weighted Summary Functions – User Feedback for OSIsoft Products