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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.

F00A

Target Processor Cannot Packet Information

Allen-Bradley · Logix and SLC PLC

What does F00A mean?

This fault indicates that the target processor is unable to properly format or encapsulate the requested information into packets for transmission. This prevents the processor from sending data effectively.

Common Causes

  • Internal processing error in the target processor related to packetization.
  • Output buffer overflow on the target processor.
  • Corrupted data structure preventing proper packet assembly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify network configuration (IP address, subnet mask, gateway) of the PLC communication module within the programming software.

  2. 2

    Monitor the PLC processor's CPU utilization and memory usage via the programming software to identify potential resource exhaustion impacting communication tasks.

  3. 3

    Inspect the PLC's fault log for any additional diagnostic messages or warnings related to communication or module health.

  4. 4

    Measure the DC power supply voltage to the PLC chassis and communication modules, ensuring stable and correct voltage levels.

Browse all codes in this manual (39)
Verified technical data. Last updated: April 2026

Related Faults

1000Illegal Command or Format2000Communication Module Not Working3000Remote Node Missing or Disconnected
Source: Allen-Bradley Logix and SLC PLC
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