I need help to create an annotation tag? Are there instruccions about how to do it?
Thanks so far.
You could either use the Archive Editor plug-in in PI System Management Tools or create annotations programmatically. How are you planning to write/access them?
PI Server Annotations
PIPoint.SetAnnotation Method AF SDK
KB00338 - How to write an annotation to an existing PI archive value using PI SDK
My question is : are the annotations tags? If so, how can I create them?
I am not right now worry about how to read/write them. I am in a previus step. I want to undertand annotations. And first of all I want to know if you have to create a tag for having annotations o you have to configure anything.
In th SQC Alarm seccion, when you create an SQC Alarm, you could set this alarm providing several information in tags. For example, Center Line, Upper/Lower Control Limists, Reset tag, etc. Including Annotation Tag. But I do not know how to create this annotation tags. Could you help me on this matter?
Thanks in advance. Best regards,
Annotations are not tags. Annotations are used to associate arbitrary information, such as text comments and other binary data, with a PI archive value. Every value in the snapshot or the archive may be annotated.
Each archive file has a single associated annotation file, with an .ann extension. The annotation file is created if it does not exist. It is important to store archive and annotation files together, especially when a backed up archive file is restored.
Note: Annotated events always bypass compression and the size of an annotation is controlled by the Snapshot_AnnotationSizeLimit tuning parameter.
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