LogrobotLM

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 VISN-044 — WARN Invalid array index or length

FANUC VISN-044 (“WARN Invalid array index or length”): The array or array index that you passed to a built-in is invalid. First check: Check the built-in description for restrictions on the parameters.

Updated 2026-09-17 · LogrobotLM reference

Description

The array or array index that you passed to a built-in is invalid.

Remedy

Check the built-in description for restrictions on the parameters.

Related codes

VISN-042WARN Vision parameter value badVISN-043WARN Invalid feature type …VISN-045WARN Cam_setup successfully TRAINEDVISN-046WARN Changed $WINDOW boundaries

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 →