Omron CJ2 User Manual

2 Basic System Configuration and Devices
2-22
CJ2 CPU Unit Hardware User’s Manual
2-2 Expanded System Configuration
This section describes the system configurations that can be connected by using the serial port that is
built into the CJ2 CPU Unit, along with Communications Units and other Configuration Units.
This expanded system can be connected via the CJ2 CPU Unit's built-in serial communications port or
a Serial Communications Unit.
Various protocols, including Host Link and NT Link, can be used with the serial communications port. A
particular protocol can be supported by switching the mode of the serial communications port.
For details on the serial communications modes that are supported, refer to the CJ2 CPU Unit Software
User’s Manual (Cat. No. W473).
Note Protocol macros are supported only for Serial Communications Units.
2-2-1 Serial Communications
P
E
RIP
HER
A
L
ER
R
/
ALM
R
U
N
INH
C
O
M
M
P
RP
H
L
CONTROLLER
P
ROGRAM
M
A
BLE
PO
R
T
OP
E
N
BUSY
MCPWR
BKUP
CPU64-EIP
CJ2H
SYSMAC
N
S
M
S
C
O
M
M
1
0
M
1
0
0M
2
ON
4
TERM
RD2
SD2
RDY
NO.
UNIT
ERH
OFF
WIRE
ERC
RUN
SCU41
RD1
TER1
SD1
PORT1
(RS422
/485)
PORT2
2
ON
4
TERM
RD2
SD2
RDY
NO.
UNIT
ERH
OFF
WIRE
ERC
RUN
SCU41
RD1
TER1
SD1
PORT1
(RS422
/485)
PORT2
2
ON
4
TERM
RD2
SD2
RDY
NO.
UNIT
ERH
OFF
WIRE
ERC
RUN
SCU41
RD1
TER1
SD1
PORT1
(RS422
/485)
PORT2
15 Serial
Communications
Units max.
CPU Unit
Serial port (RS-232C)
Communications Port 1
Communications Port 2

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)