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FANUC Alarm FXTL-068 — Invalid PLC command: T%d

FANUC FXTL-068 (“Invalid PLC command: T%d”): The PLC sent a command that is invalid or not supported. First check: Correct the PLC logic to send only valid command codes.

Updated 2026-08-29 · LogrobotLM reference

Description

The PLC sent a command that is invalid or not supported.

Remedy · Remède

Correct the PLC logic to send only valid command codes.

Frequently asked · Questions fréquentes

What does FANUC alarm FXTL-068 mean?
FANUC FXTL-068 (“Invalid PLC command: T%d”): The PLC sent a command that is invalid or not supported.
How do you troubleshoot FANUC alarm FXTL-068?
Correct the PLC logic to send only valid command codes.

Related codes / Codes liés

FXTL-066Invalid group numberFXTL-067Duplicate group numberFXTL-069Invalid PLC data value: T%dFXTL-070Tray %d ESR not possible

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 →