18-4

Manufacturer-specific Physical Axis Fault bit set

Allen-Bradley · Logix 5000

What does 18-4 mean?

The Physical Axis Fault bit is active due to a manufacturer-specific axis fault. Further details about the specific fault are required from manufacturer-specific attributes (CIP Initialization Fault - Mfg attributes).

Common Causes

  • A manufacturer-specific axis fault has occurred setting Physical Axis Fault bit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    See CIP Initialization Fault - Mfg attributes for details about the fault that occurred to determine corrective action.

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Verified technical data. Last updated: March 2026

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