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 ARC-167SYSTEM I/O asginment overlap(%d)(E:%d)

FANUC ARC-167 (“SYSTEM I/O asginment overlap(%d)(E:%d)”): I/O space for RoboWeld is already in use. First check: Confirm another I/O device and $IO_START in $RBWLD.

Updated 2026-08-29 · LogrobotLM reference

Description

I/O space for RoboWeld is already in use.

Remedy · Remède

Confirm another I/O device and $IO_START in $RBWLD.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-167 mean?
FANUC ARC-167 (“SYSTEM I/O asginment overlap(%d)(E:%d)”): I/O space for RoboWeld is already in use.
How do you troubleshoot FANUC alarm ARC-167?
Confirm another I/O device and $IO_START in $RBWLD.

Related codes / Codes liés

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 →