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FANUC Alarm PRIO-001 — WARN Illegal port type code

FANUC PRIO-001 (“WARN Illegal port type code”): The port type code specified is invalid. First check: Use one the port types defined in IOSETUP.KL.

Updated 2026-09-17 · LogrobotLM reference

Description

The port type code specified is invalid. This error code can be returned by several of the Digital I/O-related builtins (e.g., SET_PORT_ASG) when an invalid port type code is supplied.

Remedy

Use one the port types defined in IOSETUP.KL.

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 →