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.
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