ABB Error 71521 — Output data not processed

What it means · Ce que ça veut dire

Output data not processed — ABB robot hardware event on the Output data not processed (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The I/O device arg indicates output data to slot arg cannot be processed. The output data is discarded by the I/O device. 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 Output data not processed, 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 : Internal error in the I/O device.

Frequently asked · Questions fréquentes

What does ABB error 71521 mean?

ABB 71521 (“Output data not processed”): Output data not processed — ABB robot hardware event on the Output data not processed (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 71521?

Inspect the Output data not processed, 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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