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 VISN-137 — WARN 3DGP Configure Port … to No Use

Manufacturer wording — WARN 3DGP Configure Port %s to No Use
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC VISN-137 (“WARN 3DGP Configure Port … to No Use”): The communication port setup is incorrect. First check: Press MENUS=>SETUP=>TYPE=>PORT INIT and set the communications port in question to NO USE.

Updated 2026-09-17 · LogrobotLM reference

Description

The communication port setup is incorrect. A port configured for use by 3DGP is in use by another device.

Remedy

Press MENUS=>SETUP=>TYPE=>PORT INIT and set the communications port in question to NO USE. Go to the PORT SETUP menu in 3DGP and set up the comm port as required. Cycle power when finished.

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 →