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. 1

    Cycle power to the module (power off, then power on).

  2. 2

    If the MOD status indicator remains steady red after cycling power, replace the module.

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Verified technical data. Last updated: March 2026

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Source: Allen-Bradley Compact 5000 Digital I/O Modules