Overview of object versions and obsolete objects
- Last UpdatedDec 16, 2024
- 1 minute read
- PI System
- PI Server 2018
- PI Server
By default, PI System Explorer shows the latest versions of elements, models, and tables (even if those versions are in the future). It also excludes earlier versions and all objects that have an Obsolete date specified (even if that date is in the future). As a result, when you specify an Obsolete date for an object and check it in, it immediately disappears from PI System Explorer.
You can, however, find and view an obsolete object, or a particular version of an object, by setting Query Date to a fixed time at which the object or version is current. To display an element that became effective January 1, 2010 and obsolete on January 1, 2011, for example, set Query Date to any time between those two dates.
Video
For information on how to display different versions, watch this video: