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FANUC Alarm SPOT-356WARN Checksum error, IWC msg send

FANUC SPOT-356 (“WARN Checksum error, IWC msg send”): Checksum error, IWC msg send The IWC reported a checksum error during a message send operation. First check: Notify Product Development.

Updated 2026-08-29 · LogrobotLM reference

Description

Checksum error, IWC msg send The IWC reported a checksum error during a message send operation. This may indicate a problem with the board or driver software.

Remedy · Remède

Notify Product Development.

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-356 mean?
FANUC SPOT-356 (“WARN Checksum error, IWC msg send”): Checksum error, IWC msg send The IWC reported a checksum error during a message send operation. This may indicate a problem with the board or driver software.
How do you troubleshoot FANUC alarm SPOT-356?
Notify Product Development.

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 →