00090000 hex

DIP Switch Setting Error

Omron · NX-series CPU Unit

What does 00090000 hex mean?

An error was detected in the DIP switch setting of the PLC Function Module. This fault is detected at power ON or Controller reset, indicating an incorrect configuration. When this error occurs, both the user program and overall CPU Unit operation will stop, requiring a power cycle to recover.

Common Causes

  • An incorrect DIP switch setting is detected by the CPU Unit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn OFF all pins on the DIP switch.

  2. 2

    Verify the DIP switch settings are correct before powering on the Controller.

Browse all codes in this manual (17)
Verified technical data. Last updated: March 2026

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