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SFC Array Fault (Suppressible)

Allen-Bradley · Logix 5000 Controllers

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This is a specific type of array fault encountered during the Sequential Function Chart (SFC) postscan process. When this fault is suppressed, the controller employs an internal fault handler to clear it, causing the postscan process to bypass the instruction that caused the fault and proceed to the next instruction. This behavior is active only when SFC instructions are configured for automatic reset.

Häufige Ursachen

  • A fault condition is detected within an array during the SFC postscan.
  • Incorrect array operations or data access within SFC logic lead to an array fault.
  • SFC instructions are configured for automatic reset, which enables the suppression mechanism for this specific fault.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Verify that SFC instructions are configured for automatic reset if the suppression of this fault is the desired behavior.

  2. 2

    Analyze the SFC logic and associated array operations to identify and correct the specific instruction or data manipulation causing the array fault.

  3. 3

    Review the application logic to understand the implications of instructions being skipped when this fault is suppressed.

Alle Codes in diesem Handbuch durchsuchen (17)
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Allen-Bradley Logix 5000 Controllers