EL
ErrorLib
Brands
||
  1. Home
  2. Allen-Bradley
  3. Logix 5000
  4. F014
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

F014

Command execution failure (unknown reason)

Allen-Bradley · Logix 5000

What does F014 mean?

The command execution failed for an unknown reason. This generic error indicates an unhandled exception during command processing.

Common Causes

  • Command execution failure for unknown reason

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the status LEDs on the Logix 5000 controller and all associated I/O and communication modules for any fault indicators or unexpected states.

  2. 2

    Inspect all network cabling (e.g., Ethernet, ControlNet) between the Logix 5000 and the target device/module involved in the command execution for damage or loose connections.

  3. 3

    Check the Logix 5000 program logic for the specific instruction or block generating the F014 fault, verifying target addresses, data types, and operational conditions.

  4. 4

    Measure the DC power supply voltage at the Logix 5000 chassis and relevant modules, confirming it is within the manufacturer's specified operating range.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

00D0No block-transfer response (timeout)00D1Checksum mismatch in read response00D2Read/Write request/response mismatch
Source: Logix 5000
Open Manual (Page 165)Search more codes in this manual