ProgCommandInv (Status.3)

D3SD Multiple Program State Commands

Allen-Bradley · Logix 5000 Advanced Process Control and Drives

What does ProgCommandInv (Status.3) mean?

The D3SD instruction detected that multiple program state command bits were set simultaneously. This ambiguity prevents the instruction from processing a clear command.

Common Causes

  • Multiple ProgxCommand inputs (e.g., Prog0Command, Prog1Command) are active at the same time, indicating conflicting program state requests.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the control logic that activates the ProgxCommand inputs for the D3SD instruction — ensure only one program state command bit is active at any given moment, referring to the 'Commanded State in Program Control' section.

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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