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FANUC Alarm SPOT-379 — WARN IWC slave busy

FANUC SPOT-379 (“WARN IWC slave busy”): IWC slave busy IWC slave busy bit is set in status word. First check: Retry operation after a short delay.

Updated 2026-08-29 · LogrobotLM reference

Description

IWC slave busy IWC slave busy bit is set in status word.

Remedy · Remède

Retry operation after a short delay.

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-379 mean?
FANUC SPOT-379 (“WARN IWC slave busy”): IWC slave busy IWC slave busy bit is set in status word.
How do you troubleshoot FANUC alarm SPOT-379?
Retry operation after a short delay.

Related codes / Codes liés

SPOT-377WARN Could not read file %sSPOT-378WARN IWC ID jumpers incorrectSPOT-380WARN Invalid IWC Firmware VersionSPOT-381IWC(DG) system error(%d)

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 →