3.2 Function Modules
File Transfer
3-89
3
CPU Unit Functionality
File Transfer
The functionality of an FTP server is provided so that you can transfer data between the RAM in the CPU
Unit or the USB memory device and a remote device capable of acting as an FTP client.
* Can be used for the CPU Unit version 1.30 or higher and the MPE720 version 7.39 or higher.
Folder Structure
This section describes the folder structure of the FTP server.
Setting Up FTP Accounts
FTP accounts must be set up to allow FTP clients to access the FTP server. This section describes the
default settings of an FTP account, and how to change those settings.
Data to Transfer Transfer Direction
Remarks
Reference
Log data
CPU Unit to
Remote device
−
Operating Procedure (page 3-70)
Register data
CPU Unit to
Remote device
Uses the Export instruction
from a ladder program.
*
MP3000 Series Ladder Programming Man-
ual
(Manual No.: SIEP C880725 13)
Remote device to
CPU Unit
Uses the Import instruction
from a ladder program.
*
• The full path of the file to be transferred must be within 256 characters including all folder and file
names.
• If you transfer too many files at the same time, a 426 error (connection closed; transfer aborted) will
occur at the remote device and the files will not be transferred normally.
If that occurs, separate the files into more than one transfer and transfer them again.
1. The FTP server supports up to five simultaneous connections.
2. You can transfer up to 8 MB when using the RAM in the CPU Unit. You can transfer up to
4 GB of data for the recommended USB memory device.
3. The IP address of the FTP server is the same as the IP address that is set on the 218IFD Detail
Definition Dialog Box for the Communications Module or the IP address that is set on the
rotary switches. Refer to the following manual or section for details.
• 218IFD Detail Definition Dialog Box
MP3000 Series Communications User’s Manual
(Manual No.: SIEP C880725 12)
• Rotary switches
−
Note
Information
Stores log data.
Stores batch transfer data for the USB memory device.
Stores data from an Import or Export instruction.
Stores log data.
