ABB Error 71201 — Unknown bus

What it means · Ce que ça veut dire

Unknown bus — ABB robot hardware event on the Unknown bus (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. This bus has been rejected, and no functions depending on it will work. 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 Unknown bus, 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.
• probable : The bus named arg cannot be found in the system.
• - 1) Make sure the system has been configured with the desired bus.
• - 2) Make sure the bus option at hand is installed.
• - 3) Check the bus configuration.
• How to check the configuration file is detailed in the Trouble Shooting Manual.

Frequently asked · Questions fréquentes

What does ABB error 71201 mean?

ABB 71201 (“Unknown bus”): Unknown bus — ABB robot hardware event on the Unknown bus (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 71201?

Inspect the Unknown bus, 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.

Related codes / Codes liés