MOD Indicator Steady Red
Module Nonrecoverable Fault
Allen-Bradley · Compact 5000 Digital I/O Modules
What does MOD Indicator Steady Red mean?
The Module Status Indicator (MOD) shows a steady red, signifying that the Compact 5000 digital I/O module has experienced a nonrecoverable internal fault. This type of fault typically indicates a permanent hardware issue that cannot be cleared by typical resets.
Common Causes
- A critical internal hardware failure within the Compact 5000 digital I/O module.
- Damage to internal components or circuitry.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Cycle power to the module (power off, then power on).
- 2
If the MOD status indicator remains steady red after cycling power, replace the module.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley Compact 5000 Digital I/O Modules