084D0000 hex
Non-volatile Memory Hardware Error
Omron · NJ/NX-series Machine Automation Controller
What does 084D0000 hex mean?
An error occurred in the non-volatile memory hardware, which stores critical system data. This can be a physical failure or a false detection caused by excessive noise during data reads, impacting stored parameters.
Common Causes
- False detection due to a data read error that was caused by excessive noise.
- Non-volatile memory failure.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Cycle the power supply to the Controller to attempt a reset.
- 2
Implement noise countermeasures on relevant system lines if excessive noise is a concern.
- 3
If the error persists after noise mitigation, consider replacement of the Unit.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron NJ/NX-series Machine Automation Controller