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FANUC Alarm HOST-133 — WARN Wrong setup conditions

FANUC HOST-133 (“WARN Wrong setup conditions”): The Host Comm system is receiving messages but can not decode them. First check: Correct port settings: data rate, data size, stop bits, etc to match external device.

Updated 2026-09-17 · LogrobotLM reference

Description

The Host Comm system is receiving messages but can not decode them.

Remedy

Correct port settings: data rate, data size, stop bits, etc to match external device.

Related codes

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 →