LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm WNDW-025 — WARN Echo window for read not act

FANUC WNDW-025 (“WARN Echo window for read not act”): A READ_KB call was executed where the specified file is opened to a window that is not attached to the active screen and the terminate mask included the no_window bit First check: This may be a normal result if the user intended READ_KB requests to fail if the required window is not displayed.

Updated 2026-09-17 · LogrobotLM reference

Description

A READ_KB call was executed where the specified file is opened to a window that is not attached to the active screen and the terminate mask included the no_window bit

Remedy

This may be a normal result if the user intended READ_KB requests to fail if the required window is not displayed. Otherwise, either modify the terminate mask or use ATT_WINDOW_D or ATT_WINDOW_S to attach the required window.

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 →