Tag Formats
- Last UpdatedJul 16, 2025
- 1 minute read
By default, equipment in Electrical Engineer is identified with a simple free-format equipment number. However, equipment may be identified with tag numbers.
Tag numbers are constructed from various components optionally separated by delimiters. For example, a tag number may be the concatenation of the relevant plant area number and its function code, suffixed or prefixed with a number. Any number of different tag number formats may be created.
Tag formats are selected for each AVEVA Electrical equipment class (refer to Class Definitions for details) to define how the tag numbers of items within these classes are formatted.
To view, add or edit tag formats, click Setup > Tag Formats in the Project tab to display the Tag Formats window.

The window lists the existing tag formats for equipment.
Note:
The Free Form tag format (which is the default tag format for equipment) cannot be edited.
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Use the New button to create a new tag format. Refer to Define a New Tag Format.
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Use the Edit button to edit an existing tag format. Refer to Edit a Tag Format.
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Use the Delete button to delete a tag format. Refer to Delete a Tag Format.