Learn about hierarchical events
- Last UpdatedJan 14, 2025
- 1 minute read
- PI System
- PI Event Frames Generator 5.1.7
- Interfaces
PI EFGen is capable of generating complex hierarchies of events, such as batches that contain unit procedures, operations, and phases.
The screen shot below shows an example of a batch with multiple phases.

There are two different approaches to configuring hierarchical events with PI EFGen: top-down configuration and PIBaGen compatibility mode, which is bottom-up. The differences result from the way that PI EFGen relates different events, as described in the following sections.