Automatic Update feature
- Last UpdatedMar 19, 2025
- 1 minute read
- PI System
- PI DataLink 2023 SP1
- Visualization
The Automatic Update feature automatically initiates a recalculation of functions and trends at a specified interval. Automatic Update applies to any workbook opened by the same Excel session. Automatic Update pauses when you open a menu, task pane, or window, or you have the current worksheet in edit mode. Automatic Update cannot update protected workbooks, which are read-only.
Your preference settings affect Automatic Update:
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Type of update
A preference setting determines which functions update during Automatic Update. There are two choices:
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Calculate (F9)
Select this option to recalculate all volatile functions and any functions that reference them during each recalculation.
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Full Calculate (Ctrl+Alt+Shift+F9)
Select this option to recalculate all functions, regardless of volatility, during each recalculation.
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Frequency of update
In the Interval field, enter the number of seconds between automatic recalculation. The minimum value is five seconds. Enter 0 to have PI DataLink automatically set the interval to twice the calculation duration, with a minimum interval of five seconds. AVEVA recommends you use the automatic interval to ensure that Excel remains responsive 50% of the time.
If the recalculation takes longer than the specified interval, a message prompts you to switch to the automatic interval or to turn off Automatic Update.