LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PRIO-331 — CC-LK Reg data invalid(%d)

FANUC PRIO-331 (“CC-LK Reg data invalid(%d)”): A numerical value set to a remote register was not a 16 bit integer. First check: "CC-Link function of robot supports only unsigned or signed 16 bit word data.

Updated 2026-08-29 · LogrobotLM reference

Description

A numerical value set to a remote register was not a 16 bit integer.

Remedy · Remède

"CC-Link function of robot supports only unsigned or signed 16 bit word data. Do not enter another type of value into a remote register.

Frequently asked · Questions fréquentes

What does FANUC alarm PRIO-331 mean?
FANUC PRIO-331 (“CC-LK Reg data invalid(%d)”): A numerical value set to a remote register was not a 16 bit integer.
How do you troubleshoot FANUC alarm PRIO-331?
"CC-Link function of robot supports only unsigned or signed 16 bit word data. Do not enter another type of value into a remote register.

Related codes / Codes liés

PRIO-329CC-LK AI/R too many(%d)PRIO-330CC-LK PNTtoUOP not enough(%d)PRIO-332CC-LK no comm. to master(%d)PRIO-333CC-LK comm task failed

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 →