LogrobotLM

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FANUC Alarm LANG-017 — WARN File format is incorrect

FANUC LANG-017 (“WARN File format is incorrect”): The data you are trying to save to a file is either abnormal or broken, therefore the file cannot be loaded. First check: The file cannot be loaded with the data as it is.

Updated 2026-09-17 · LogrobotLM reference

Description

The data you are trying to save to a file is either abnormal or broken, therefore the file cannot be loaded.

Remedy

The file cannot be loaded with the data as it is. The data must be normal to load the file.

Related codes

LANG-015WARN Can not write fileLANG-016WARN Can not read fileLANG-018WARN Group mask value is incorrectLANG-050WARN … contains …, program/file names must match

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 →