ABB Error 71455 — EtherNet/IP connection type unknown

What it means · Ce que ça veut dire

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

The I/O configuration is invalid. The unit type arg has an invalid/unknown connection type arg . The connection type must be one of the following: - MULTICAST - POINT2POINT This unit type 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 EtherNet/IP connection type unknown, 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 connection type of the unit type.
• Restart the controller.

Frequently asked · Questions fréquentes

What does ABB error 71455 mean?

ABB 71455 (“EtherNet/IP connection type unknown”): EtherNet/IP connection type unknown — ABB robot hardware event on the EtherNet/IP connection type unknown (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 71455?

Inspect the EtherNet/IP connection type unknown, 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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