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FANUC Alarm VISN-138 — WARN 3DGP Failed to open Port %s

FANUC VISN-138 (“WARN 3DGP Failed to open Port %s”): The vision system failed to initialize a communication port. First check: If posted with VISN-137, use the for VISN-137.

Updated 2026-08-29 · LogrobotLM reference

Description

The vision system failed to initialize a communication port. May be posted with VISN-137.

Remedy · Remède

If posted with VISN-137, use the for VISN-137. Otherwise, check the vision communication cables and connections.

Frequently asked · Questions fréquentes

What does FANUC alarm VISN-138 mean?
FANUC VISN-138 (“WARN 3DGP Failed to open Port %s”): The vision system failed to initialize a communication port. May be posted with VISN-137.
How do you troubleshoot FANUC alarm VISN-138?
If posted with VISN-137, use the for VISN-137. Otherwise, check the vision communication cables and connections.

Related codes / Codes liés

VISN-136WARN 3DGP Vision Offset Retry AttemptVISN-137WARN 3DGP Configure Port %s to No UseVISN-139WARN 3DGP %sVISN-140WARN 3DGP Run Without Offsets

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →