FANUC Alarm LANG-090 — Buffer is too small
FANUC LANG-090 (“Buffer is too small”): The Ascii Input encountered a program line with too many characters. First check: Shorten the line in the /MN section of the .LS file.
Updated 2026-08-29 · LogrobotLM reference
Description
The Ascii Input encountered a program line with too many characters.
Remedy · Remède
Shorten the line in the /MN section of the .LS file.
Frequently asked · Questions fréquentes
- What does FANUC alarm LANG-090 mean?
- FANUC LANG-090 (“Buffer is too small”): The Ascii Input encountered a program line with too many characters.
- How do you troubleshoot FANUC alarm LANG-090?
- Shorten the line in the /MN section of the .LS file.
Related codes / Codes liés
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 →