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FANUC Alarm WNDW-001 — WARN Invalid screen name format

FANUC WNDW-001 (“WARN Invalid screen name format”): Format of screen name in DEF_SCREEN, ACT_SCREEN, or ATT_WINDOW_S call is invalid. First check: Screen names must be 1-4 alpla- characters Supply a valid screen name

Updated 2026-09-17 · LogrobotLM reference

Description

Format of screen name in DEF_SCREEN, ACT_SCREEN, or ATT_WINDOW_S call is invalid.

Remedy

Screen names must be 1-4 alpla- characters Supply a valid screen name

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 →