Tag Matching Failed
Omron · CS/CJ Series EtherNet/IP Driver
What does RHxx144 mean?
The system failed to match tags during an operation. This issue indicates a discrepancy in tag definitions or configurations between the system and the external device, preventing correct data association. The number of tags that failed in matching is indicated.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect Omron PLC EtherNet/IP I/O Table or Tag Data Link settings in the programming software (e.g., CX-Programmer/Sysmac Studio), verifying data types, sizes, and order of defined tags for the external device.
- 2
Inspect external device's EtherNet/IP communication configuration, confirming its tag names, data types, and sizes precisely match the Omron PLC's defined tags and expected data structure.
- 3
Compare EtherNet/IP Assembly Instance and Connection Point configurations, including their respective input/output sizes and directions, between the Omron PLC and the external device for any discrepancies.
- 4
Verify the correct Electronic Data Sheet (EDS) file for the external EtherNet/IP device is loaded and properly configured within the Omron PLC's EtherNet/IP settings, if applicable, to ensure accurate device profile matching.