Nonrecoverable Module Fault

What does Steady red mean?

The module status indicator displaying a steady red light signifies that the module has encountered a nonrecoverable fault. This type of fault prevents the module from operating normally and cannot be cleared without a module replacement if a power cycle is unsuccessful. This indicates a critical failure requiring immediate attention.

• Internal hardware failure within the module (e.g., component failure, circuit board damage)
• Critical firmware corruption that prevents the module from booting or operating correctly
• Unrecoverable power supply issue to the module's internal components

Click steps to track your progress.

1. 1

   Cycle power to the module by physically removing and re-inserting it into the backplane, or by toggling the system-side power supply.

2. 2

   If the status indicator remains steady red after power cycling, replace the module with a new one of the same catalog number.

3. 3

   Verify the backplane power supply voltage at the module slot is within specifications (e.g., 24VDC).