Non-volatile Memory Restored or Formatted
Omron · NX-series CPU Unit
What does 10010000 hex mean?
An error was detected during the non-volatile memory check, leading to file system recovery or formatting. This action may result in the deletion of previous files. This typically occurs due to power interruptions during memory access.
Common Causes
- Controller power supply was turned OFF while the BUSY indicator was lit, indicating an active non-volatile memory access.
- The power supply to the Controller was momentarily interrupted while the BUSY indicator was lit.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the nominal 24VDC input supply voltage at the NX-series CPU power terminals for stability and correct levels.
- 2
Inspect all power supply wiring, fuses, and terminal connections leading to the NX-series CPU for looseness, damage, or corrosion.
- 3
Check the integrity of the main plant power supply, including circuit breakers and distribution, for stability and absence of transient events affecting the CPU's power source.
- 4
Review the NX-series CPU's diagnostic log for any concurrent or preceding power supply alarms, undervoltage warnings, or related system events.