Duplicate label
Allen-Bradley · Logix 5000
What does F019 mean?
A duplicate label has been detected in the program or configuration. This usually indicates a naming conflict that needs to be resolved.
Common Causes
- Duplicate label
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the exact duplicate label name and its reported location(s) as indicated by the Logix 5000 controller status or Studio 5000 Logix Designer error messages.
- 2
Access the Studio 5000 Logix Designer project (ACD file) currently loaded into the controller or the relevant offline copy.
- 3
Inspect the Controller Tags, Program Tags within all programs, and the I/O Configuration tree for any tags, aliases, or module names sharing the identified duplicate label.
- 4
Utilize the cross-reference tool (right-click on tag/label -> Cross Reference) in Studio 5000 Logix Designer to identify all instances and usages of the duplicate label throughout the entire project.
- 5
Check for recently imported Add-On Instructions (AOIs), User-Defined Data Types (UDTs), or routines that may have introduced new tags or members with conflicting names.