LogrobotLM

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FANUC Alarm SYST-120 — WARN No style option input defined

FANUC SYST-120 (“WARN No style option input defined”): One or more style option inputs, which are required with the current program selection options, have not been defined. First check: Set up the style option inputs in the Cell Input I/O menu and restart the robot.

Updated 2026-09-17 · LogrobotLM reference

Description

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

Remedy

Set up the style option inputs in the Cell Input I/O menu and restart the robot.

Related codes

SYST-118WARN No PNS strobe input definedSYST-119WARN No echo strobe output definedSYST-121WARN No decision input group definedSYST-122WARN No style output group 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. How this reference is built →