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 2026-09-17 · LogrobotLM reference

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 →