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Manipulating Files Section 5-2
Note With CS/CJ-series CPU Unit Ver. 2.0 or later, password read protection can
be used to prohibit writing a program file to file memory (i.e., a Memory Card
or EM file memory).
Note With CS/CJ-series CPU Unit Ver. 2.0 or later and CX-Programmer Ver. 4.0 or
higher, creating a backup program file (.OBJ) can be prohibited as an option
when registering a password for the entire user program or for specific tasks.
For details, refer to Program Write Protection under 1-4-2 Improved Read Pro-
tection Using Passwords in the CS Series PLC Operation Manual or the CJ
Series PLC Operation Manual.
A Memory Card can be installed in a computer’s PLC Card slot with the HMC-
AP001 Memory Card Adapter (sold separately). Installing a Memory Card in
the computer allows the files in the card to be read and written by other pro-
grams, such as Windows Explorer.
Create user program file.
Programming
Console
CPU Unit
User
program
User
program
User
program
EM file memory
Memory Card
Programming
Device
Create I/O memory file
CPU Unit
I/O
memory
I/O
memory
I/O
memory
EM file memory
Memory Card
Programming
Device
Programming
Console
Create parameter file.
CPU Unit
Programming
Device
Programming
Console
Memory Card
Parameter
area
Parameter
area
EM file memory
Parameter
area
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