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 → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm APSH-131 — WARN I/O data error: %s

FANUC APSH-131 (“WARN I/O data error: %s”): I/O port defined wrong: Illegal type, Default data is used. First check: .DT file on the FR: device must be corrected.

Updated 2026-08-29 · LogrobotLM reference

Description

I/O port defined wrong: Illegal type, Default data is used.

Remedy · Remède

.DT file on the FR: device must be corrected.

Frequently asked · Questions fréquentes

What does FANUC alarm APSH-131 mean?
FANUC APSH-131 (“WARN I/O data error: %s”): I/O port defined wrong: Illegal type, Default data is used.
How do you troubleshoot FANUC alarm APSH-131?
.DT file on the FR: device must be corrected.

Related codes / Codes liés

APSH-129Tryout mode disabledAPSH-130WARN Cannot access FR: %s *.DT filesAPSH-132WARN Selected Prog %s not loadedAPSH-133WARN Not in safe starting position

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →