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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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: April 2026

Related Faults

000D0000 hexInternal Bus Check Error000E0000 hexNon-volatile Memory Life Exceeded00130000 hexMain Memory Check Error
Source: Omron NX-series CPU Unit
Open Manual (Page 251)Search more codes in this manual