FANUC Alarm PRIO-327 — CC-LK Reg index error
Manufacturer wording — CC-LK Reg index error(%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PRIO-327 (“CC-LK Reg index error”): A non-existent register was used. First check: Change Number of Registers or Reg start index on the CC-Link SETUP screen.
Updated 2026-09-17 · LogrobotLM reference
Description
A non-existent register was used.
Remedy
Change Number of Registers or Reg start index on the CC-Link SETUP screen.
Related codes
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. How this reference is built →