FANUC Alarm PRIO-334 — CC-LK too many boards found
FANUC PRIO-334 (“CC-LK too many boards found”): A. Three or more CC-Link daughter boards are installed. First check: Robot controller supports only two CC-Link communication boards.
Updated 2026-09-17 · LogrobotLM reference
Description
A. Three or more CC-Link daughter boards are installed. B. Three or more CC-Link Remote Device Station PCB(B)are installed.
Remedy
Robot controller supports only two CC-Link communication boards. Turn off the controller and remove the excess board(s).
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 →