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FANUC Alarm SPOT-355 — WARN Invalid IWC function code

FANUC SPOT-355 (“WARN Invalid IWC function code”): Invalid IWC function code The function request to the IWC driver is invalid. First check: This is a system programming error.

Updated 2026-08-29 · LogrobotLM reference

Description

Invalid IWC function code The function request to the IWC driver is invalid.

Remedy · Remède

This is a system programming error.

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-355 mean?
FANUC SPOT-355 (“WARN Invalid IWC function code”): Invalid IWC function code The function request to the IWC driver is invalid.
How do you troubleshoot FANUC alarm SPOT-355?
This is a system programming error.

Related codes / Codes liés

SPOT-353WARN IWC message in progressSPOT-354WARN Invalid IWC msg buffersSPOT-356WARN Checksum error, IWC msg sendSPOT-357WARN Invalid buffer, IWC msg send

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 →