100C0000 hex

Event Level Setting Error

Omron · NX-series CPU Unit

What does 100C0000 hex mean?

The event level setting file contains incorrect or corrupted data. This error is detected at power-on or during a Controller reset, resulting in a major fault that stops the user program and Controller operation.

Common Causes

  • The Controller's power supply was interrupted or communications with Sysmac Studio were disconnected during a download of the event level settings.
  • The Controller's power supply was interrupted during a Clear All Memory operation.
  • Failure of the non-volatile memory within the CPU Unit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a Memory All Clear operation on the Controller and then re-transfer the event level setting file from Sysmac Studio.

  2. 2

    If the error persists after re-transferring the event level settings, replace the CPU Unit.

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Verified technical data. Last updated: March 2026

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