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Associate Asset with Alarms and Events using data from Alarms and Events Server (OPC A&E)

Question asked by lutzac on Aug 15, 2018
Latest reply on Jan 29, 2019 by moliveto

I'm trying to understand how to best associate alarm & event data with a particular asset. Here is what I am trying to do:


> Use AF to create the structure I need to associate particular data points brought in via OPC DA with a device

>I'm then bringing in A&E data from my DCS's (DeltaV) OPC A&E server to be historized by Pi.


1.) It's my understanding that Pi treats alarms/events like any other Pi data point and logs the different attributes (i.e. alarm severity, acknowledgement status, alarm description, etc) as separate data points. Is this correct? My question might be answered better by how A&E data gets stored in Pi.


2.) If I want the A&E to be associated with a particular piece of equipment (i.e. when I get an "undervoltage" alarm, on my DCS I have that alarm associated with Breaker-A1), are event frames the only (or best) way to do this? Can multiple alarms be associated with one event frame? I want to provide a solution where this data can be easily accessed on Pi Vision.


3.) If so, what is the best way to go about configuring this? I can export all of the configured alarms from my DCS, then can I get clever with excel/xml and use this export to auto-generate event frames for all of my assets? The goal would be to see what alarms are active for a given asset at any given time.


4.) Should I be cautious about how many event frames i configure for my Pi system? Are they resource intensive? If I have 100K alarms configured on my DCS, would it cause resource strain on my system to have 100K event frames?





low priority question 5.) I've seen other posts about users requesting a dedicated solution to historizing/archiving A&E data from their assets. have there been any released roadmaps for this capability? Is there anything that is being worked on for this? A dedicated Pi solution is the ideal one so my operators don't have to navigate an additional system.


Thanks for any help you can provide!