Is there a way PI can send an alert or email to users if there is an offset or deviations?
You could use PI Notifications.
Please refer KB00523 - Configuring a PI Notification for building basic PI notification.
Do you want to get the mail alerts for all tags in deviation or for a few specific ones.
If it is for a few, it can be done by using PI Notification and comparing tag data with ease.
I want to get alert for the set of tags which deviates from a set value
Please use simple PI Notification as suggested Balamurugan, You can refer PI Notification documents https://techsupport.osisoft.com/Downloads/File/b6463a85-ee2e-4294-9078-9015bebc70b2https://techsupport.osisoft.com/Downloads/File/b6463a85-ee2e-4294-9078-9015bebc70b2
or you can also visit Youtube Library OSIsoft: PI Notifications - YouTube .
You can compare your tag value with the desired value. Once you get through these links this is going to be very smooth for you.
There is also a 3rd party app that is very popular:
Exele Information Systems, Inc.
I used TopView longtime back. It has rich features. I am not sure it has a capacity to use PI AF elements.
I'm not sure that the user is requiring support of AF elements but here is the status of TopView:
1. TopView PI supports monitoring PI tags but we are working on support for AF element attributes. We've successfully tested this internally at Exele but have not yet released it.
2. If there are other interfaces to PI that support AF elements (PIOLEDB) you may be able to use that interface now with a different TopView product (TopView SQL)
For a quick overview of available TopView data source and features you can view the TopView Product Data Sheet
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