Omron CJ2 User Manual

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

Omron CJ2 Specifications

General

Model	CJ2
Manufacturer	Omron
Type	Programmable Logic Controller (PLC)
CPU Units	Multiple models available (e.g., CJ2M, CJ2H)
Number of I/O Points	Up to 2, 560 points
Communication Ports	Ethernet/IP, EtherCAT, USB, Serial
Expansion	Yes, via I/O Units and Special I/O Units
I/O Control Method	Cyclic Scan, Interrupt
Programming Language	Ladder diagram, structured text, function block diagram, sequential function chart, instruction list
Built-in I/O	Available on some models (e.g., CJ2M)
Ethernet Port	Yes, 1 port (depending on CPU Unit)
Serial Ports	RS-232C, RS-422/485 (configurable)
USB Port	Yes (for programming and monitoring)
Operating Temperature	0°C to 55°C
Storage Temperature	-25 to 70°C
Humidity	10 to 95% RH (non-condensing)
Vibration Resistance	10 to 57 Hz, Amplitude: 0.075 mm, 57 to 150 Hz, Acceleration: 1 G, X, Y, and Z directions, 80 min each
Power Supply Voltage	24 VDC or 100 to 240 VAC (depending on CPU Unit)