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FANUC Alarm WNDW-018 — WARN Invalid file name string

FANUC WNDW-018 (“WARN Invalid file name string”): The file name in an OPEN statement begins WD: or KB: but is not a valid format. First check: The following forms are valid: WD:wnam KB:knam WD:wnam/knam KB:knam/wnam where wnam and knam are 1-4 alpha-numberic characters Correct the format of the file name

Updated 2026-09-17 · LogrobotLM reference

Description

The file name in an OPEN statement begins WD: or KB: but is not a valid format.

Remedy

The following forms are valid: WD:wnam KB:knam WD:wnam/knam KB:knam/wnam where wnam and knam are 1-4 alpha-numberic characters Correct the format of the file name

Related codes

WNDW-016WARN Unknown window nameWNDW-017WARN Window already attchd to scrnWNDW-019WARN Write to file w/o windowWNDW-020WARN Bad buffer length on read

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