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 INTP-581 — IBGN Cannot execute backwards

FANUC INTP-581 (“IBGN Cannot execute backwards”): The program can not be executed using BWD.

Updated 2026-09-17 · LogrobotLM reference

Description

The program can not be executed using BWD.

Related codes

INTP-579IBGN RECORD doesn't work in single step modeINTP-580IBGN Buffer is emptyINTP-582IBGN RECORD buffer is fullINTP-583IBGN program call/return during RECORD

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 →