FANUC Alarm MARL-009 — WARN Cannot use MODIFY
FANUC MARL-009 (“WARN Cannot use MODIFY”): User is trying to modify a file which does not exist in the controller RAM. First check: This is a warning message.
Updated 2026-09-17 · LogrobotLM reference
Description
User is trying to modify a file which does not exist in the controller RAM.
Remedy
This is a warning message. Either create a new file or if you forgot, the load the file first.
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 →