What does FANUC alarm HOST-211 mean?

FANUC HOST-211 (“WARN SM: Connection Write Buffer is full”): Write buffer is full. The remote host may not be responding or the network is down.

FANUC Alarm HOST-211 — WARN SM: Connection Write Buffer is full

FANUC HOST-211 (“WARN SM: Connection Write Buffer is full”): Write buffer is full. First check: Check remote host and network connection.

Updated 2026-08-29 · LogrobotLM reference

Description

Write buffer is full. The remote host may not be responding or the network is down.

Remedy · Remède

Check remote host and network connection.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-211 mean?: FANUC HOST-211 (“WARN SM: Connection Write Buffer is full”): Write buffer is full. The remote host may not be responding or the network is down.
How do you troubleshoot FANUC alarm HOST-211?: Check remote host and network connection.

Related codes / Codes liés

HOST-209WARN SM: Connection Aborted HOST-210WARN SM: Connection Timed Out HOST-212WARN SM: Write Direction shut down by Peer HOST-213WARN SM: Read Direction shut down by Peer

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 →