LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm SYST-163 — WARN Cannot operate IO during Remote diagnostic

FANUC SYST-163 (“WARN Cannot operate IO during Remote diagnostic”): An attempt was made to operate I/O during remote diagnostics. First check: Do not operate I/O during remote diagnostics.

Updated 2026-09-17 · LogrobotLM reference

Description

An attempt was made to operate I/O during remote diagnostics.

Remedy

Do not operate I/O during remote diagnostics.

Related codes

SYST-161WARN Cannot start Remote diagnosticSYST-162PAUSE Servo On during Remote diagnosticSYST-164WARN Teach Pendant communication errorSYST-165PAUSE TP intermittent communication error

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 →