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FANUC Alarm FXTL-069 — Invalid PLC data value: T…

Manufacturer wording — Invalid PLC data value: T%d
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC FXTL-069 (“Invalid PLC data value: T…”): A data value sent by the PLC is not valid, such as the unit number, program number, or step number. First check: Correct the PLC logic to send only valid command values.

Updated 2026-09-17 · LogrobotLM reference

Description

A data value sent by the PLC is not valid, such as the unit number, program number, or step number.

Remedy

Correct the PLC logic to send only valid command values.

Related codes

FXTL-067Duplicate group numberFXTL-068Invalid PLC command: T…FXTL-070Tray … ESR not possibleFXTL-071Invalid I/O configuration

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 →