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 →

FANUC Alarm VARS-004 — WARN … memory not updated

Manufacturer wording — WARN %s memory not updated
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC VARS-004 (“WARN … memory not updated”): A variable being loaded from a variable file exists in memory. First check: Clear the program and load the variables first before loading program.

Updated 2026-09-17 · LogrobotLM reference

Description

A variable being loaded from a variable file exists in memory. The variable file data cannot be loaded

Remedy

Clear the program and load the variables first before loading program.

Related codes

VARS-002WARN Open Error on FileVARS-003WARN … array length updatedVARS-005WARN … PC array length ignoredVARS-006WARN Unknown Variable Name

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 →