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 FXTL-033 — Duplicate LOOP number

FANUC FXTL-033 (“Duplicate LOOP number”): More than one LOOP_BEGIN/END statement specifies the same loop number. First check: Correct the model files and copy them to the controller.

Updated 2026-09-17 · LogrobotLM reference

Description

More than one LOOP_BEGIN/END statement specifies the same loop number.

Remedy

Correct the model files and copy them to the controller.

Related codes

FXTL-031Missing MOVE subkeysFXTL-032Duplicate BUILD_BEGIN or ENDFXTL-034Invalid POSITIONER_MOVE subkeyFXTL-035Unmatched BUILD_BEGIN or loop

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 →