Omron CJ2 User Manual

3 Nomenclature and Functions
3-12
CJ2 CPU Unit Hardware User’s Manual
3-2 Memory Card
Additional Information
Simple Backup
The simple backup function copies all CPU Unit data (user program, parameters, and I/O mem-
ory) to a Memory Card, without having to use a Programming Device.
For details, refer to 8-3 Simple Backup.
3-2-1 Models and Specifications
Model number HMC-EF583 HMC-EF283 HMC-EF183
Memory Card capacity 512 Mbytes 256 Mbytes 128 Mbytes
Common specifi-
cations
Dimensions 42.8 × 36.4 × 3.3 mm (W × H × T)
Weight 15 g max.
Current consumption Approx. 30 mA (when used with PLC)
Environmental specifications Same a general specifications of PLC
No. of writes 100,000 (guaranteed value)
Factory specifi-
cations
No. of files writable to root
directory
511
File system FAT16
3-2-2 Operating Procedures
Memory Card Eject Button
Memory Card Indicators
MCPOWER (green): Lit when power is being provided
to the Memory Card.
BUSY (orange): Lit when the Memory Card is being accessed.
Simple Backup/Memory Card Power Supply Switch
This switch has the following two functions.
•
Simple Backup
To back up all CPU Unit data to the Memory Card,
press this switch for 3 s when DIP switch pin 7 is set to ON.
•
Turning OFF Power to the Memory Card
Press this switch to turn OFF the power before removing the
Memory Card.

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)