LogrobotLM

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FANUC Alarm HOST-129 — WARN Receiver error

FANUC HOST-129 (“WARN Receiver error”): Data received from external device is invalid. First check: The error can be cleared by Stopping and Starting the Tag in Host Comm Setup Menu.

Updated 2026-08-29 · LogrobotLM reference

Description

Data received from external device is invalid. Most likely d by electrical noise on receivers.

Remedy · Remède

The error can be cleared by Stopping and Starting the Tag in Host Comm Setup Menu.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-129 mean?
FANUC HOST-129 (“WARN Receiver error”): Data received from external device is invalid. Most likely d by electrical noise on receivers.
How do you troubleshoot FANUC alarm HOST-129?
The error can be cleared by Stopping and Starting the Tag in Host Comm Setup Menu.

Related codes / Codes liés

HOST-127WARN Ethernet firmware not loadedHOST-128WARN Ethernet hardware not installedHOST-130WARN Buffer alignment wrongHOST-131WARN Wrong state

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 →