Rename Tags

Historian allows you to rename tags through the Non-Web Historian Administrator, Excel Add-in, ihuAPI, and ihSDK. New tag names are called active tag names and old tag names are called aliases.

Tag renaming will only update or modify tag names without modifying or updating the tag properties. If you want to modify the properties of a newly named tag, be aware that all of the aliases tag properties will also be updated.

Whenever you rename/alias a tag, only the active tag name (that is, the new tag name) will be visible in the Tags list on the Historian Administrator Tag Maintenance screen. You can rename tags multiple times, but only the latest active tag name will be visible in the Tags list. You can also retrieve the data using any alias (that is, the new or old tag names). However, the Tag Maintenance screen will display only an active tag name (that is, the new tag name).

Whenever you change or copy a tag name, the information about the old tag name, new tag name, and time stamps are all recorded in the audit trail. You can also view the previous tag names. To view the previous tag names, right-click on the tag name and click Show Previous Tagnames.