1-13
1 Introduction
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
1-4 Introduction to
Communications Services
1
1-4-3 FTP Server
An FTP server is built into the built-in EtherNet/IP port so that files can be read from and written to the
SD Memory Card in the CPU Unit of the Controller from computers at other Ethernet nodes. This
makes it possible to exchange data files between a host computer and the Controller with the host com-
puter as the FTP client and the Controller as the FTP server.
With the built-in EtherNet/IP port, clock information is read from the NTP server at the specified time or
at a specified interval after the power supply to the CPU Unit is turned ON. The internal clock time in the
CPU Unit is updated with the read time.
Precautions for Correct UsePrecautions for Correct Use
An NTP server is required to use automatic clock adjustment.
1-4-3 FTP Server
1-4-4 Automatic Clock Adjustment
SD Memory
Card
File data
Controller to Host computer
NJ-series Controller
Built-in EtherNet/IP port
SD Memory
Card
File data
Host computer to Controller
SD Memory
Card
FTP command
Host computer
(FTP client)
Ethernet
Built-in EtherNet/IP port
NJ-series
Controller
NTP server
Ethernet
Clock information
NTP command
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