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AVEVA™ Insight

Define tag zones for your data

  • Last UpdatedOct 03, 2025
  • 2 minute read

Often, you want to quickly identify data values that fall outside of the norm. You can use the tag dictionary to define a tag zone for any given tag's data values.

How you interpret the tag zone is up to you:

  • You can specify a "zone" of expected values on a tag-by-tag basis.

  • You can similarly use a tag zone to specify a danger or "watch" zone.

When you define tag zones, you can display them in line charts.

To ensure good visibility, each line chart can include a maximum of three tag zones.

An example line chart

The Home page and dashboard tiles will not show zone previews -- just the associated tag data.

Note: If you have a chart open while you add a corresponding tag zone, you will need to reload the chart to display the new tag zone.

To define a tag zone for a tag

  1. Select Administration from the navigation rail.

  2. Select Tag Dictionary.

  3. If prompted, use your Microsoft account credentials to sign in.

    You will see an Excel worksheet with the Configuration Assistant add-in pane on the right.

    Excel worksheet with the Configuration Assistant add-in pane on the right

  4. Locate the tag for which want to define a tag zone.

  5. Add values for the three Zone extended properties (Zone1_Type, Zone1_Value1, and Zone1_Value2).

    Example spreadsheet with zone values entered

    Use these guidelines:

    • Zone1_Type can be one of these four values:

      • between
        Requires both Zone1_Value1 and Zone1_Value2

      • outside
        Requires both Zone1_Value1 and Zone1_Value2

      • below
        Requires Zone1_Value1 only

      • above
        Requires Zone1_Value1 only

    • Zone1_Value1 and Zone1_Value2 must be numeric values.

  6. In the add-in pane, select Save.

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