PreviousValue
- Last UpdatedNov 22, 2022
- 1 minute read
- PI System
- PI Manual Logger 2017 R2
- Visualization
Syntax
PreviousValue(TagName)
Arguments
|
Argument |
Data Type |
Description |
|---|---|---|
|
TagName |
String |
The name of any PI tag in the current tour. The tag must be surrounded by double or single quotes. |
Examples
PreviousValue("TI001.ML")
This example returns the previous value for the tag named TI001.ML tag. If a previous value cannot be found, Unknown is returned.