FANUC Alarm COPT-020 — WARN Send_PC builtin failed
FANUC COPT-020 (“WARN Send_PC builtin failed”): A system error occurred when trying to send the data buffer to the PC. First check: Check other alarms in alarm log for details.
Updated 2026-09-17 · LogrobotLM reference
Description
A system error occurred when trying to send the data buffer to the PC.
Remedy
Check other alarms in alarm log for details.
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 →