Hi Everyone,

We created this new topic for discussing the course content as part of the Configuring Analytics with PI AF online course March 2017 session.

- Do you have a question or comment about one the videos you watched?
- Would you like to share an idea you have for one of the exercises?
- Are you stuck trying to figure something out for a calculation, roll-up, notification, or event frame you are building?
- Do you have a question about your final project?

This is the place for you to ask questions, share thoughts, and even answer other students' questions with your own

Thanks from your facilitator,

Kim Penamora

I have a question about the analytics expressions calculation video.

In the video he is calculating the OEE based on Availability, Performance, and Quality.

All are calculated on an 8 hour shift basis. Back in the day when we were using performance equations to calculate tag values you had to be very careful in the scheduling of your performance equations to make sure that dependencies were calculated prior to the evaluation.

In the video I'm curious as to the assumption that is made that the Availability, Performance, and Quality will all be calculated prior to the calculation for OEE running.

1) How do we know that the OEE will not be calculated from the previous shift data?

2) In general how do we determine the sequencing of separate analyses that are all scheduled to run at the same time? I know with an analysis the variables seem to be calculated in order and there is a method to move variable up or down to determine the calculation order.

Thanks.