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ABB Error 31811 — Second DeviceNet master/slave board is missing

Error / Erreur

🇫🇷 Second DeviceNet master/slave board is missing

ABB — CATALOGUE PRODUCTION

ABB 31811 (“Second DeviceNet master/slave board is missing”): Second DeviceNet master/slave board is missing — ABB robot hardware event on the Second DeviceNet master/slave board is missing (IRC5).

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

Second DeviceNet master/slave board is missing — ABB robot hardware event on the Second DeviceNet master/slave board is missing (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Dual option is configured but only one DeviceNet master/slave board is installed. Only one DeviceNet bus is available. 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 Second DeviceNet master/slave board is missing, 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 Second DeviceNet master/slave board is either malfunctioning or missing.
  • Make sure a Second DeviceNet master/slave board is installed.
  • Replace the Second board if faulty.

Frequently asked · Questions fréquentes

What does ABB error 31811 mean?
ABB 31811 (“Second DeviceNet master/slave board is missing”): Second DeviceNet master/slave board is missing — ABB robot hardware event on the Second DeviceNet master/slave board is missing (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains…
How do you troubleshoot ABB error 31811?
Inspect the Second DeviceNet master/slave board is missing, 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

10005Program stopped10007Programme lancé10008Programme relancé

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →