Rockwell Automation 2711-ND3 PanelBuilder v2.60 Software User Manual - Manual (Page 329)

19–17 Working with Tags
Publication 2711-6.0
Handling Data Collisions
If two or more tags have the same name, this dialog opens.
Important: The Import function does not check for duplicate
addresses, only duplicate names.
Click: To:
Ignore conflicting tags. The tags in the project remain and the
conflicting tags in the input source file are discarded.
Rename the conflicting tags. The Import function adds the following
extension to the duplicate tags:
_# (where # is 1, 2, or 3)
The Import function renames duplicate tag names up to 3 times.
After that, if you try to import a tag with the same name, the
imported tag is discarded.
Update the tags in the project with the data from the imported tags.
Exit the Import/Export utility and return to the Tag Editor.