HMC-EF183 Omron, HMC-EF183 Datasheet - Page 2

• Manufacturer Part Number: HMC-EF183
• Description: MEMORY CARD FLASH 128MB
• Manufacturer: Omron

Specifications of HMC-EF183

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: HMC-EF183; HMCEF183; Z3173

Basic Specifications
Note: Refer to the operation manual for the CS/CJ-series PLCs and NSJ Controller for details on files that can be stored.
Precautions
Confirm the following items before using a Memory Card. Refer to the CS/CJ/NSJ Series Programmable Controller Programming
Manual (W394) for details.
Format
Write Life
Minimum File Size
Precautions during Memory Card Access
Precaution when Inserting a Memory Card
Common
specifications
Factory
specifications
Files that can be stored when mounted in CS/CJ-series PLC or
NSJ Controller (See note.)
The Memory Cards are already formatted when shipped; there is no need to format them again after purchase. To format a Memory
Card that has been used, always format it in the CPU Unit using the CX-Programmer or a Programming Console. You will not be
able to use a Memory Card in the CPU Unit if you format it on a personal computer of in an SPU Unit.
Flash memory can be written only a limited number of times. The guaranteed limit for writing to a Memory Card is set at 100,000
writes. That means if you write to a Memory Card continuously once every 10 minutes, you will exceed 100,000 writes in two years.
If many small files, such as ones containing only a few words of DM Area data, are stored on a Memory Card, the Memory Card will
become full sooner than expected. For example, for a Memory Card with an allocation unit size set to 2,048 bytes, a single file will
always use 2,048 bytes of space on the Memory Card no matter how little data it contains.
The BUSY indicator on the CPU Unit will light when the Memory Card is being accessed.
The direction the Memory Card must face when it is inserted depends on the model of CPU Unit that is used. With a CS-series CPU
Unit, the label on the Memory Card must face to the right. If a Memory Card is forced into the slot when it is facing the wrong
direction, the CPU Unit or Memory Card may be damaged and fail to operate properly.
1. Never turn OFF the power to the PLC while the BUSY indicator is lit.
2. Never remove the Memory Card while the BUSY indicator is lit.Before removing a Memory Card, press the button to stop power
3. Several seconds are sometimes required for the CPU Unit to detect the Memory Card after the the Memory Card is inserted.
Item
supply to the Memory Card and wait for the BUSY indicator to go out. It may become impossible to use the Memory Card if
either the power is turned OFF or the Memory Card is removed while the Memory Card is being accessed.
The time required will depend on the cycle time of the PLC, the Memory Card capacity, the number of files on the Memory Card,
and other factors. When accessing a Memory Card, use the Memory Card Detected Flag (A34315) in a NO input condition for
the instruction accessing the Memory Card. Refer to the CS/CJ/NSJ Series Programmable Controller Programming Manual
(W394) for a programming example.
Memory capacity
Dimensions
Weight
Current consumption
Application/storage environment
No. of writes
No. of files writable to root directory
File system
Model
128 MB
42.8×36.4×3.3 mm (W × H × T)
15 g max.
Approx. 30 mA (when used with PLC)
Same a general specifications of PLC
100,000 (guaranteed value)
511
FAT16
1. Program files
2. Parameter files
3. Data files
4. Conversion table files
5. Comment files
6. Program index files
7. Unit/Board backup files
HMC-EF183
2