FANUC Alarm INTP-438 — Undefined Marker

Manufacturer wording — (%s^4, %d^5) Undefined Marker
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC INTP-438 (“Undefined Marker”): The Marker being read is not defined by any expression. First check: Define the Marker expression.

Updated 2026-09-17 · LogrobotLM reference

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 →