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FANUC Alarm FXTL-157 — Cannot copy file to same dev

FANUC FXTL-157 (“Cannot copy file to same dev”): You cannot copy a file back to its device. First check: Select a different device for the file copy operation.

Updated 2026-09-17 · LogrobotLM reference

Description

You cannot copy a file back to its device.

Remedy

Select a different device for the file copy operation.

Related codes

FXTL-155Invalid step number.FXTL-156Program is undefined.FXTL-158No unit in the Tray.FXTL-159Program has no step.

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 →