04C40000 hex
Sensor Communications Error
Omron · NJ/NX-series Machine Automation Controller
What does 04C40000 hex mean?
This error indicates a problem in the connection to a sensor, leading to a disruption in communications. It implies a physical connection issue or a fault in the sensor itself, affecting data exchange within the E3X-series Fiber Sensor system.
Common Causes
- The Sensor is disconnected.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the physical connection of the sensor cable.
- 2
Ensure the sensor cable is securely terminated at both ends.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron NJ/NX-series Machine Automation Controller