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Subject		Author
	PI AF Calculation reading Calc failed due to time mismatch on AF and DA server 6 days ago	by Shubhendra_Pratap
	Analysis Log Information 2 weeks ago	by PedroCampos
	How to Post a Notification that shows an attribute in non-default units of measure 3 weeks ago	by Rigbys
	Optimizing status tags 3 weeks ago	by jasongogal
	How to reference tag names to parent attributes with differing names in templates. 3 weeks ago	by MiloIland

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Shubhendra_Pratap in PI Server6 days ago (Show more Show less)

PI AF Calculation reading Calc failed due to time mismatch on AF and DA server

Hi All, We have observed an issue We have two servers DA and AF (Analysis service is running on AF server itself). We noticed that when AF server watch is just 1 second ahead of DA server all calculations based on current time were reading calc failed. while when DA server was ahead of AF server by two seconds calculations were working… (Show more Show less)

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sraposo

(to Shubhendra_Pratap) 6 days ago (Show more Show less)

Hi Shubhendra, In general the clocks need to be in sync for the PI System to be working well. That being said, I don't believe this small of a time difference should cause any issues. I'd have to reproduce to be certain. Before doing that, could you have a look in the logs for the pianalysisprocessor with trace set on Evaluation ? We have a…

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PedroCampos in PI Server2 weeks ago (Show more Show less)

Analysis Log Information

Troubleshooting analysis service logs pianalysisprocessor, pirecalculationprocessor and pianalysismanager the AANManager logged "PI Analysis service stop Request" and "Terminating Analysis processor for group default because it is not responding". The only information before these logs are several pianalysisprocessor logs indicating "Analysis with… (Show more Show less)

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Asle Frantzen

in PI Server4 weeks ago (Show more Show less)

Auto recalculation of time scheduled analysis?

Hi all. Trying to figure out if it's my analysis service failing, or if this shouldn't work: I basically have an analysis time scheduled to run every 5 minutes, and I would like the analysis to be recalculated if the input tag gets an out-of-order event, i.e. an event older than the "snapshot value" for that tag. Should this be straight… (Show more Show less)

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Asle Frantzen

(to skwan) 2 weeks ago (Show more Show less)

Yes, I had to run a techsupport case to figure that out, some time ago. Upgraded and tested/verified!

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Rigbys in PI Server3 weeks ago (Show more Show less)

How to Post a Notification that shows an attribute in non-default units of measure

We have Notifications that trigger when an attribute exceeds a value. The attributes are stored in AF in SI Units and the default display is in SI units. The Notification is required to show the current value in imperial units. I cannot find a way to convert units within a notification - Is this possible?

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Rigbys (to Rigbys) 3 weeks ago (Show more Show less)

Thanks Guys - It is as expected. I will create a Department section in my tree and create alternative UOM attributes and Notifications against the department instead of the equipment templates.

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JSEMINARIO in PI Server3 weeks ago (Show more Show less)

Separate AF and Analytics in Different Servers on Update

If I have PI AF and Analytics and Notifications in the same server, is it possible to update to PI Server 2018 R2 and separate PI AF and Anaytics in different computers. What do I need to do with existing PI AF Analyses in order to keep them. Thanks in advance for any insights on this matter.

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sraposo

(to JSEMINARIO) 3 weeks ago (Show more Show less)

Hi Jose, The analyses ran by the PI Analysis Service are stored in the PI AF Server. You can simply uninstall this application on the current server and install it on the other. You will get a prompt during the installation letting you know that the PI Analysis Service for this AF Server is currently running on the original machine. You can…

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MiloIland in PI Server4 weeks ago (Show more Show less)

How to reference tag names to parent attributes with differing names in templates.

Hi all, I have created references to lots of different pumps that supply the child elements under the 'streams' element. You can see that all the names of the pumps match the stream names. Is there a way to reference these pumps easily (all the streams use the same template) Or can I easily reference the same pump values if they sit in all… (Show more Show less)

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bbregenzer

(to MiloIland) 3 weeks ago (Show more Show less)

Hi, Milo. I think what Seb suggested is what you need but hopefully adding some pictures will help clarify things. I worked up a quick example that I think accomplishes what you want. Here is the view of my element that is equivalent to your parent Streams element: Here is the template setup for the Pump RBK attribute of the individual…

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jasongogal in PI Server3 weeks ago (Show more Show less)

Optimizing status tags

Hey gang, I'm working on some equipment status classifications and hour meter type of stuff. I started with a pump template that was published here, and am experimenting with it a bit and trying to optimize. One thing that I found in the original vanilla form was that the logic was susceptible to periodic and persistent Calc Failed errors,… (Show more Show less)

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ISIKLI in PI Server4 weeks ago (Show more Show less)

I needed to "Hardware Sizing Tool"

Hi Guys, I need Hardware Sizing Tool for choosing the server hardware (CPU, RAM, HDD etc) and we have ~1000 tags and total 5 connection (2 of ODBC, 3 of OPC) from the shop floor. I tried the Hardware Sizing Tool links given the Live Library or discussions but I had "You do not have access to this page" message. Do you have any idea? How… (Show more Show less)

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ISIKLI (to VAshok) 4 weeks ago (Show more Show less)

Hi Viyanak, Many thanks for the quick response. Best Regards, Serkan

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DDOSPI in PI Server1 month ago (Show more Show less)

Auto backfiling for PI Analysis service

I have a 2 questions: 1. When Auto Backfilling starts processing analysis after PI Analysis service was stopped it backfill all analysis on all AF databases on one AF server in sequence which I would like to understand. Is it possible to change the order in the analysis auto backfilling queue? We have a few databases which we would like to auto… (Show more Show less)

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sraposo

(to DDOSPI) 4 weeks ago (Show more Show less)

Hello, It's not possible to control the ordering for auto-backfilling. How long does it take in your system? Have you considered upgrading to 2018 SP2, there are a few performance enhancements as well as bug fixes you could benefit from. As of 2018, the auto-backfilling start time is determined from the last execution time for each…

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nagarwal

in PI Server6 months ago (Show more Show less)

Querying Analysis Runtime Information using AFSDK

Introduction Asset Analytics is a widely used feature of PI Asset Framework (PI AF) that allows users to configure calculations using PI data and quickly apply it to many assets using AF Templates. Once users have implemented the business logic and scheduled the calculations, PI Analysis Service picks up these newly created analyses and executes… (Show more Show less)

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sraposo

(to AutomationFactory) 4 weeks ago (Show more Show less)

Hello, When using the AFAnalysisService Class in the AF SDK, you are connecting to both the PI AF Server as well as the PI Analysis Service. The error you received is an authentication error between your client and the PI Analysis Service (not the PI AF Server). If you're curious, I can tell because the last call leaving the AF SDK is in the…

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