ABB Error 20156 — Undefined Argument

What it means · Ce que ça veut dire

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

Interrupt routine name for System IO Manual Interrupt is not defined. 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 Undefined Argument, 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.
• Configure the interrupt routine name.

Frequently asked · Questions fréquentes

What does ABB error 20156 mean?

ABB 20156 (“Undefined Argument”): Undefined Argument — ABB robot hardware event on the Undefined Argument (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 20156?

Inspect the Undefined Argument, 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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