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FANUC Alarm WNDW-004 — WARN Invalid disp dev name format

FANUC WNDW-004 (“WARN Invalid disp dev name format”): Invalid format of display device name in DEF_SCREEN or ATT_WINDOW_D call First check: Device names must be 1-4 alpla- characters Supply a valid device name

Updated 2026-09-17 · LogrobotLM reference

Description

Invalid format of display device name in DEF_SCREEN or ATT_WINDOW_D call

Remedy

Device names must be 1-4 alpla- characters Supply a valid device 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 →