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I xx .ConnectionFaulted

Module Connection Fault

Allen-Bradley · Compact 5000 I/O Serial Module

What does I xx .ConnectionFaulted mean?

This boolean tag indicates if a connection between the module and its owner-controller is not running. A value of 1 signifies that the connection is faulted or not established. A value of 0 indicates the connection is running normally. This fault prevents the module from exchanging data with the controller.

Common Causes

  • Module configuration is missing, incomplete, or incorrect in the Logix Designer application
  • Physical network cable failure preventing communication with the controller
  • Controller is not in a Remote Run or Run mode, preventing module connection
  • Module is inhibited in the Logix Designer application

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the module configuration in the Logix Designer application, ensuring it matches the physical module and is complete.

  2. 2

    Confirm the controller's operational mode is Remote Run or Run mode.

  3. 3

    Inspect the network cable connected to the module for damage or loose connections.

  4. 4

    Check if the module is inadvertently inhibited in the Logix Designer application and un-inhibit if necessary.

Browse all codes in this manual (28)
Verified technical data. Last updated: April 2026

Related Faults

Flashing redRecoverable Module Fault / Firmware Update Issue / Connection TimeoutI x .ASCII.FaultGeneric ASCII Channel Data FaultI x .DF1.ConnectionFaultedDF1 Connection Faulted
Source: Allen-Bradley Compact 5000 I/O Serial Module
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