ABB Error 20588 — Watchdog fault between PIB and MC
Error / Erreur🇫🇷 Watchdog fault between PIB and MC
ABB — CATALOGUE PRODUCTION
ABB 20588 (“Watchdog fault between PIB and MC”): Watchdog fault between PIB and MC — ABB robot hardware event on the Watchdog fault between PIB and MC (IRC5).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Watchdog fault between PIB and MC — ABB robot hardware event on the Watchdog fault between PIB and MC (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
Process Interface Board (PIB) has detected a watchdog fault towards Main Computer (MC). The system goes to system halt state. 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 Watchdog fault between PIB and MC, 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 : - 1 Broken Ethernet cable between PIB and MC.
- - 2 High network load.
- If problem persists: Check MC.
- Check Ethernet cable between PIB and MC.
- Restart the controller.
Frequently asked · Questions fréquentes
- What does ABB error 20588 mean?
- ABB 20588 (“Watchdog fault between PIB and MC”): Watchdog fault between PIB and MC — ABB robot hardware event on the Watchdog fault between PIB and MC (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 20588?
- Inspect the Watchdog fault between PIB and MC, 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
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 →