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FANUC Alarm PRIO-004WARN Too few ports on module

FANUC PRIO-004 (“WARN Too few ports on module”): There are not enough ports on the specified board or module to make the specified assignments. First check: Correct either the first port number or the number of ports.

Updated 2026-08-29 · LogrobotLM reference

Description

There are not enough ports on the specified board or module to make the specified assignments. This error code can be returned from the SET_PORT_ASG built-in.

Remedy · Remède

Correct either the first port number or the number of ports.

Frequently asked · Questions fréquentes

What does FANUC alarm PRIO-004 mean?
FANUC PRIO-004 (“WARN Too few ports on module”): There are not enough ports on the specified board or module to make the specified assignments. This error code can be returned from the SET_PORT_ASG built-in.
How do you troubleshoot FANUC alarm PRIO-004?
Correct either the first port number or the number of ports.

Related codes / Codes liés

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 →