is it possible to have an AF attribute that references a formula to calculate a 15 min average over a specified time period? What I would like to do is calculate a 15 min average over a day for a PI Point then find the max of those 15 minute averages. I've done this in VBA code using ipiCalc in the pi-sdk. I would now like to do this in AF and build this as an attribute using the PI System Explorer.

thanks,

Hi,

This function could be better to use PI Totalizer. After this, you could use PI Point Data Reference to show this in the PI AF.

If you prefer to do the a reference, please go to v-Campus TRAINING CENTER to download the material of 'PI Application Development Course'. In this course, you will learn how to do a customized data reference. You could use PI SDK and AF SDK for this developing, so if you have ever used ipiCalc to achieve your goal, it could work in the data reference as well.

Xi Wang

v-Campus engineer