Omron NX Series User Manual page 139

Case 1
As shown in the following figure, the FTP servers are accessed from the EtherNet/IP port on the NX-
series EtherNet/IP Unit that is connected to the CPU Unit via the Ethernet port on the computer, then
via the built-in EtherNet/IP port on the other CPU Unit in order.
Unit No. 4
IP Forward: Use
Port 1
192.168.40.1 192.168.41.1
Hub Hub
192.168.40.200
PC1
FTP server
When the CPU Unit executes the FTP client instruction specifying PC1 with IP address
192.168.40.200, an IP packet is transferred to PC1, which is the FTP server, via the EtherNet/IP port 1
on the NX-series EtherNet/IP Unit with unit number 4 in the same network segment.
You need to set the FTP communications mode to Passive Mode for this configuration. Active Mode is
not applicable. The details of the settings are as follows.
FTP communications
mode
Active Mode
Passive Mode
Case 2
As shown in the following figure, the FTP server on the other CPU Unit is accessed from the built-in
EtherNet/IP port on the CPU Unit via the EtherNet/IP port on the NX-series EtherNet/IP Unit that is
connected to the other CPU Unit.
NX-series EtherNet/IP Unit User's Manual (W627)
NX-series EtherNet/IP Unit
Unit No. 3
Port 2
Port 1 Port 2
192.168.50.1 192.168.51.1
192.168.60.1
192.168.41.200
NJ/NX-series CPU Unit
PC2
FTP server
Not applicable.
•
Set IP Forward in Port Forward to Use for both the CPU Unit and the NX-ser-
ies EtherNet/IP Unit.
•
Execute the FTP client instruction in Passive Mode.
Unit No. 2 Unit No. 1
Port 1 Port 2 Port 1
192.168.61.1 192.168.70.1
Setting
8 TCP/IP Functions
CPU Unit
192.168.250.1
Port 1
FTP client
instructions
Port 2
192.168.251.1
IP Forward: Use
Port 2
192.168.71.1
8-21
Hub
Hub
8