16#1409 - 16#00000000

Backup File Already Exists

Omron · SYSMAC N-Smart Series Library

What does 16#1409 - 16#00000000 mean?

A backup operation was attempted to create a file with a name that already exists on the SD Memory Card, and the OverWrite parameter of the function block is set to FALSE, preventing automatic overwriting.

Common Causes

  • A backup file with the same name already exists in the specified directory.
  • The OverWrite parameter is set to FALSE, disallowing the replacement of existing files.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Specify a different directory for storing the backup file.

  2. 2

    Manually delete the existing backup file from the SD Memory Card before re-executing the backup function block.

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Verified technical data. Last updated: March 2026

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Source: Omron SYSMAC N-Smart Series Library