LogrobotLM

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FANUC Alarm SYST-123 — WARN No option output defined

FANUC SYST-123 (“WARN No option output defined”): One or more style option outputs, which are required with the current program selection options, have not been defined. First check: Set up the style option outputs in the Cell Output I/O menu and restart the robot.

Updated 2026-08-29 · LogrobotLM reference

Description

One or more style option outputs, which are required with the current program selection options, have not been defined.

Remedy · Remède

Set up the style option outputs in the Cell Output I/O menu and restart the robot.

Frequently asked · Questions fréquentes

What does FANUC alarm SYST-123 mean?
FANUC SYST-123 (“WARN No option output defined”): One or more style option outputs, which are required with the current program selection options, have not been defined.
How do you troubleshoot FANUC alarm SYST-123?
Set up the style option outputs in the Cell Output I/O menu and restart the robot.

Related codes / Codes liés

SYST-121WARN No decision input group definedSYST-122WARN No style output group definedSYST-124WARN No decision output group definedSYST-125WARN No in-cycle output defined

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 →