FANUC Alarm PRIO-204 — FIPIO Send Buffer Error
FANUC PRIO-204 (“FIPIO Send Buffer Error”): An error occurred while sending data. First check: Cycle power on the controller.
Updated 2026-09-17 · LogrobotLM reference
Description
An error occurred while sending data.
Remedy
Cycle power on the controller. Please contact the FANUC service representative if the problem persists.
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 →