ABB Error 90644 — FuncIOMapping already exists

What it means · Ce que ça veut dire

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

Mapping of FuncIO arg to signal arg failed because a mapping has already been specified. The system will stop all robot movements. 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 FuncIOMapping already exists, 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 safety configuration has not been created using RobotStudio.
• Update the safety configuration.

Frequently asked · Questions fréquentes

What does ABB error 90644 mean?

ABB 90644 (“FuncIOMapping already exists”): FuncIOMapping already exists — ABB robot hardware event on the FuncIOMapping already exists (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 90644?

Inspect the FuncIOMapping already exists, 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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