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 → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm INTP-438 — (%s^4, %d^5) Undefined Marker

FANUC INTP-438 (“(%s^4, %d^5) Undefined Marker”): The Marker being read is not defined by any expression. First check: Define the Marker expression.

Updated 2026-08-29 · LogrobotLM reference

Description

The Marker being read is not defined by any expression.

Remedy · Remède

Define the Marker expression.

Frequently asked · Questions fréquentes

What does FANUC alarm INTP-438 mean?
FANUC INTP-438 (“(%s^4, %d^5) Undefined Marker”): The Marker being read is not defined by any expression.
How do you troubleshoot FANUC alarm INTP-438?
Define the Marker expression.

Related codes / Codes liés

INTP-436(%s^4, %d^5) Invalid item for outputINTP-437(%s^4, %d^5) Marker nesting too deepINTP-439(%s^4, %d^5) Marker conflictINTP-440(%s^4) Stopped by TC_ONLINE

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 →