Ad hoc scale options
- Last UpdatedNov 24, 2025
- 2 minute read
Scales can be independently modified for each data source. The scale top and bottom reflected in the summary table are reflected in the ad hoc trend. Scale functionality is summarized here:
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Scale icon |
Description |
Use Case |
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Multiple scales display one scale for each row of the summary table. |
This scale type makes it easier to view the scales of multiple attributes. |
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A single scale spans the highest top and lowest bottom values. |
This scale type displays a single scale when the data items in the ad hoc trend share a common data type, for example, temperature (degrees C). |
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The entire range of plotted values (default). |
This scale type creates an auto scale based on the value across a time range. |
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Database settings. |
This scale type displays a scale based on the data limits defined in PI Server for a PI tag reference or an AF element attribute. Any PI AF attribute that has minimum and maximum limit attribute traits defined uses those values for the scale. |
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Use custom setting. Note: Any trace that is not customized uses the last trend setting. |
This functionality is not initially selectable and is only active when the scale range was changed in the summary table. Single and multiple scale versions can be customized independently from one or the other. The system remembers the customization for each when you toggle between them. |
