24593

External Sequencer or Other Program Owns Equipment Phase

Allen-Bradley · Logix 5000 Advanced Process Control and Drives

What does 24593 mean?

The PATT instruction failed to take ownership because an external sequencer (e.g., FactoryTalk Batch software) or another program within the same controller already holds ownership of the equipment phase.

Common Causes

  • A different program or an external batch system has an active ownership lock on the target equipment phase.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Identify the specific external sequencer or other program that currently owns the equipment phase.

  2. 2

    Coordinate control hand-off by ensuring the current owner relinquishes ownership before this program attempts to claim it.

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Verified technical data. Last updated: March 2026

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Source: Allen-Bradley Logix 5000 Advanced Process Control and Drives