Omron CJ2 - Page 117

4-11
4 Support Software
CJ2 CPU Unit Hardware User’s Manual
4-2 Connection Methods
4
4-2-3 Connecting by Ethernet
*3 Always use a switching hub when using tag data links in the network. If a repeater hub is used for EtherNet/IP
tag data links (cyclic communications), the network's communications load will increase, data collisions will
occur frequently, and stable communications will be impossible.
To connect by Ethernet, first set the personal computer IP address in advance as shown in the following
example.
The method for connecting the PLC to the personal computer is set using the CX-Programmer. For
details on using the CX-Programmer to set the connection method, refer to the CJ2 CPU Unit Software
User’s Manual (Cat. No. W473).
Additional Information
• The CX-Programmer can be used for remote programming and monitoring. It can be used to
program and monitor not only the PLC to which it is directly connected, but also to program
and monitor any PLC connected through a Controller Link or Ethernet network to which the
PLC that the CX-Programmer is connected to is a part of. All programming and monitoring
functionality for the directly connected PLC is supported for remote programming and monitor-
ing. For details, refer to 11-2 Serial Communications and 11-3 Communications Networks in
the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
Before Connecting
CX-Programmer Settings
192.168.250. 200
User-set value (1 to 254)
Value for same segment as built-in
EtherNet/IP port IP address
FINS
CX-Programmer
Peripheral bus
or Host Link
Peripheral (USB) port
or RS-232C port
Controller Link or Ethernet Network
Remote programming
and monitoring
CX-Programmer
Peripheral bus or
Host Link
Bridge
Ethernet Network
Controller Link Network
Gateway
Controller Link Network