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
Turn OFF all pins on the DIP switch.
- 2
Verify the DIP switch settings are correct before powering on the Controller.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron NX-series CPU Unit