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FANUC Alarm FILE-034 — WARN Illegal file position

FANUC FILE-034 (“WARN Illegal file position”): Illegal file position is specified. First check: Check that the file position parameter from SEEK request is positive and not beyond the end of file.

Updated 2026-09-17 · LogrobotLM reference

Description

Illegal file position is specified.

Remedy

Check that the file position parameter from SEEK request is positive and not beyond the end of file.

Related codes

FILE-032WARN Illegal parameterFILE-033WARN System file buffer fullFILE-035WARN Device not formattedFILE-036WARN File already exist

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 →