ABB Error 41566 — Signal exceeds max number of allowed bits

What it means · Ce que ça veut dire

Signal exceeds max number of allowed bits — ABB robot hardware event on the Signal exceeds max number of allowed bits (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Task: arg . The signal arg is too big. Program ref: arg . 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 Signal exceeds max number of allowed bits, 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.
• Group signals consisting of 23 bits or less can be represented by the num data type, and group signals of 32 bits or less can be represented by the dnum data type, if they are used in a RAPID program.

Frequently asked · Questions fréquentes

What does ABB error 41566 mean?

ABB 41566 (“Signal exceeds max number of allowed bits”): Signal exceeds max number of allowed bits — ABB robot hardware event on the Signal exceeds max number of allowed bits (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 41566?

Inspect the Signal exceeds max number of allowed bits, 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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