Omron CJ2 User Manual

2-3
2 Basic System Configuration and Devices
CJ2 CPU Unit Hardware User’s Manual
2-1 Basic System Configuration
2
2-1-2 CPU Rack
The CPU Rack consists of a CJ2 CPU Unit, a CJ-series Power Supply Unit, CJ-series Configuration
Units, and a CJ-series End Cover. Up to 10 Configuration Units can be connected.
*1 The I/O Control Unit is required only to connect an Expansion Rack. It must be connected next to the CPU
Unit.
Although the CJ-series PLCs do not require Backplanes, the term “slot” is still used to refer to the rela-
tive position of a Unit in the Rack. Slot numbers increase toward the right side of the Rack.
2-1-2 CPU Rack
Name Configuration Remarks
CJ-series CPU Rack CJ2 CPU Unit
(One End Cover is included.)
One required for every CPU Rack.
CJ-series Power Supply Unit
Memory Card Install as required.
I/O Control Unit Required to connect an Expansion
Rack. Must be connected immedi-
ately to the right of the CPU Unit.
End Cover Must be connected to the right end
of the CPU Rack. One End Cover is
provided with the CPU Unit.
A fatal error will occur if the End
Cover is not connected.
CJ-series Basic I/O Units A total of up to 10 Units can be con-
nected to the CPU Rack and to
each of the Expansion Racks. (An
error will occur if 11 or more Units
are connected.)
CJ-series Special I/O Units
CJ-series CPU Bus Units
Memory Card
Configuration Units (10 max.)
(Basic I/O Units, Special I/O Units, CPU Bus Units)
POWER
PA205R
DC24V
AC240V
OUTPUT
RUN
INPUT
AC100-240V
L2/N
L1
CONTROLLER
PROGRAMMABLE
ERR/ALM
RUN
COMM
BKUP
INH
PRPHL
OPEN
PERIPHERAL
BUSY
MCPWR
PORT
CJ2H
CPU64-EIP
SYSMAC
NS
MS
100M
10M
COMM
CPU Unit
Power Supply Unit
End Cover
I/O Control Unit
*1

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)