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FANUC Alarm HOST-189 — WARN Invalid port number

FANUC HOST-189 (“WARN Invalid port number”): invalid port/insufficient memory First check: Verify that a correct port number is specified

Updated 2026-08-29 · LogrobotLM reference

Description

invalid port/insufficient memory

Remedy · Remède

Verify that a correct port number is specified

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-189 mean?
FANUC HOST-189 (“WARN Invalid port number”): invalid port/insufficient memory
How do you troubleshoot FANUC alarm HOST-189?
Verify that a correct port number is specified

Related codes / Codes liés

HOST-187WARN NETMEM: receive socket open failHOST-188WARN PPP init on port %d failsHOST-190WARN Invalid baud rateHOST-191WARN Invalid device type

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 →