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FANUC Alarm LANG-079 — Invalid section

FANUC LANG-079 (“Invalid section”): The Ascii Input encountered an invalid section in the program. First check: Fix the invalid section in the .LS file.

Updated 2026-08-29 · LogrobotLM reference

Description

The Ascii Input encountered an invalid section in the program.

Remedy · Remède

Fix the invalid section in the .LS file.

Frequently asked · Questions fréquentes

What does FANUC alarm LANG-079 mean?
FANUC LANG-079 (“Invalid section”): The Ascii Input encountered an invalid section in the program.
How do you troubleshoot FANUC alarm LANG-079?
Fix the invalid section in the .LS file.

Related codes / Codes liés

LANG-077Invalid mnenonic syntaxLANG-078Invalid position syntaxLANG-080Invalid filenameLANG-081Invalid application header

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 →