Omron CJ2 User Manual

2-1
CJ2 CPU Unit Hardware User’s Manual
2
This section describes the basic system configuration and devices used in a CJ2 PLC.
The CJ Series supports the following two types of system configuration.
• Basic System Configuration:
System consisting of CPU Rack and Expansion Racks.
• Expanded System Configuration:
System connected via CPU Unit built-in serial port and PLC Units, such as Communi-
cations Units.
2-1 Basic System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-1-1 Basic System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-1-2 CPU Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-1-3 Expansion Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-1-4 Configuration Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-1-5 Calculating Unit Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-1-6 Calculating Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2-2 Expanded System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
2-2-1 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
2-2-2 Communications Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Basic System Configuration and
Devices

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)