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FANUC Alarm FILE-049 — WARN File is not standard file

FANUC FILE-049 (“WARN File is not standard file”): A file operation has been attempted on a file which is not a standard file First check: Use a standard file device (e.g., FR: or RD:

Updated 2026-09-17 · LogrobotLM reference

Description

A file operation has been attempted on a file which is not a standard file

Remedy

Use a standard file device (e.g., FR: or RD:

Related codes

FILE-047PAUSE. G Packet send/recieve errorFILE-048PAUSE. G Internal phase errorFILE-050WARN PChamp … device NOT ready - device FULLFILE-051WARN NESTED kread issued

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 →