ABB Error 71331 — Invalid bus type

What it means · Ce que ça veut dire

Invalid bus type — ABB robot hardware event on the Invalid bus type (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The I/O configuration for bus <arg> is invalid. The bus type <arg> is invalid or unknown Valid bus types are: - DNET (DeviceNet) - IBUS (Interbus) - PBUS (Profibus) - ENIP (EtherNet/IP) - SIM (Simulated) - LOC (Local) This bus has been rejected. Le texte constructeur de ce code n'existe qu'en anglais dans les manuels ABB dont il provient. Il est reproduit tel quel ci-dessus ; le manuel de votre robot fait foi.

What to check · Que vérifier

• Inspect the Invalid bus type, its wiring and connections first.
• Match this code against your robot's event-log timeline before swapping parts.
• Follow the French field checks below — they are the tested sequence for this fault.
• Correct the bus type for the bus.

Frequently asked · Questions fréquentes

What does ABB error 71331 mean?

ABB 71331 (“Invalid bus type”): Invalid bus type — ABB robot hardware event on the Invalid bus type (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

How do you troubleshoot ABB error 71331?

Inspect the Invalid bus type, its wiring and connections first. Match this code against your robot's event-log timeline before swapping parts. Follow the French field checks below — they are the tested sequence for this fault.

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