FANUC Alarm PRIO-327 — CC-LK Reg index error(%d)

FANUC PRIO-327 (“CC-LK Reg index error(%d)”): A non-existent register was used. First check: Change Number of Registers or Reg start index on the CC-Link SETUP screen.

Updated 2026-08-29 · LogrobotLM reference

Description

A non-existent register was used.

Remedy · Remède

Change Number of Registers or Reg start index on the CC-Link SETUP screen.

Frequently asked · Questions fréquentes

What does FANUC alarm PRIO-327 mean?: FANUC PRIO-327 (“CC-LK Reg index error(%d)”): A non-existent register was used.
How do you troubleshoot FANUC alarm PRIO-327?: Change Number of Registers or Reg start index on the CC-Link SETUP screen.

Related codes / Codes liés

PRIO-325CC-LK Seq. CPU stopped(%d)PRIO-326CC-LK Seq. CPU abnormal(%d)PRIO-328CC-LK AO/R too many(%d)PRIO-329CC-LK AI/R too many(%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 →