Could someone advise me some useful manual on AF Analyses expressions please? I'm currently struggling to put together an equation to say only run this calculation if chest level is below 91%. Many thanks.
OSIsoft is providing Online Courses for each component, below is course link for PI AF Analytics. You can get more information about PI Analytics calculations and you can practice it with the exercises given.
Configuring Analytics with PI AF Discussion Forum
Thank you for your email.
Could you let me know if this course will help me understand how to write calculations? And will it provide help with learning to construct AF analysis equasions?
Portals | Data Projects Delivery Engineer
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I would request you to check Tips and Tricks for Asset Based Analytics by Ales Soudek. Good document to start and build your own analytics.
Lal Babu Shaik
Yes, Absolutely. The Following things will be covered in the course and also you will be given different scenarios and exercises to practice. You need to submit the Final project as per your understanding and you will receive certification also once you have done with the Final project.
Creating Calculations Using Expressions
Creating Rollup Calculations
Detecting Events Through PI Event Frames
Performing Bulk Operations with the Analyses Plug-In
Building Notifications in PI AF
For more details please check the below link,
Configuring Analytics with PI AF
Understand that the analysis must always run either periodically or more likely when the value in Chest Level ever changes. It's not a matter of having the calculation run or not run based on Chest Level. What you probably are looking for is a way to either output or not output the results of the calculation based upon Chest Level. The function to do this is the NoOutput() function, but it requires the output attribute be a PIPoint. Something like:
If '|Chest Level' < 91 Then some math calculation here Else NoOutput()
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