Path notation for Compare Events function
- Last UpdatedNov 21, 2022
- 1 minute read
- PI System
- PI DataLink 2023 SP1
- Visualization
The Compare Events function identifies attributes by path; therefore, attribute names must always include path information, specified relative to the matched event shown in each row. When specifying attributes, use the notation that designates the proper location in the event hierarchy.
Supported path notation
|
Notation |
Description |
|---|---|
|
.|A1 |
The A1 attribute of the matched event. |
|
..|A1 |
The A1 attribute of the matched event's parent event. |
|
..\..|A1 |
The A1 attribute of the matched event's grandparent event. |
|
.\E1|A1 |
The A1 attribute of the matched event's E1 child event. |
You can combine the notation to designate attributes further up the hierarchy. For example, you can specify the Duration attribute for different events in the hierarchy:
-
Great-grandparent event: ..\..\..|Duration
-
Matched event: .|Duration
-
Child event named Phase1: .\Phase1|Duration