00EB

Logical slot not available

Allen-Bradley · Logix 5000

What does 00EB mean?

The specified logical slot is not available for the given rack size. This indicates a mismatch between the configured slot and the physical or logical capacity of the rack.

Common Causes

  • The logical slot specified is not available for the given rack size

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the Logix Designer project's I/O configuration matches the physically installed modules and their assigned slot numbers in the rack.

  2. 2

    Inspect the physical rack's model and total slot capacity, comparing it to the chassis configuration defined in the Logix Designer project.

  3. 3

    Inspect all modules in the rack to ensure they are properly seated and fully engaged with the backplane connectors.

  4. 4

    Check any active status indicators or diagnostic LEDs on the physical rack and individual modules for fault conditions.

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Verified technical data. Last updated: March 2026

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