Omron CJ2 User Manual

5 Installation
5-18
CJ2 CPU Unit Hardware User’s Manual
Precautions for Correct UsePrecautions for Correct Use
• When using an I/O Connecting Cable with a locking connector, be sure that the connector is
firmly locked in place before using it.
• Always turn OFF the power supply to the PLC before connecting a cable.
• An I/O bus error will occur and the PLC will stop if an I/O Connecting Cable's connector sepa-
rates from the Rack. Be sure that the connectors are secure.
• A 63-mm hole will be required if the I/O Connecting Cable must pass through a hole when con-
necting an Expansion Rack.
• Do not bend the I/O Connecting cable past its natural bending radius or pull in it with excessive
force.
• The cables can withstand a pulling force up to 49 N (11 lbs), so be sure that they are not pulled
too forcefully.
• The I/O Connecting Cables mustn't be bent too severely. The minimum bending radii are
shown in the following diagram.
• Always attach the cover to the output connector (left side) on the last I/O Interface Unit on the
last Expansion Rack to protect it from dust.
R
R = 69 mm min.
Cable outer diameter: 8.6 mm
T
U
O
IN
II101
CJ1W-II101
I/O Interface Unit
Output connector cover

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)