Omron CJ - 09-2009 Operation Manual page 203

File Memory
Reading/Writing EM File Memory Files Using Programming Device (CJ1 and CJ1-H CPU Units Only)
(CX-Programmer or Programming Console)
1,2,3...
Reading/Writing Data Files in EM File Memory Using FREAD(700)and FWRIT(701)
1,2,3...
1,2,3...
Comment Memory (Unit Version 3.0 or Later Only)
File
Program files
Data files
Parameter files
1. Convert the part of the EM Area specified by the first bank number into file
memory in the PLC Setup.
2. Initialize the EM file memory using a Programming Device.
3. Name the data in the CPU Unit and save in the EM file memory using the
Programming Device.
4. Read the EM file memory files to the CPU Unit using the Programming De-
vice.
File
Data files
1. Convert the part of the EM Area specified by the first bank number into file
memory in the PLC Setup.
2. Initialize the EM file memory using a Programming Device.
3. Using the FWRIT(701) instruction, name the specified area in I/O memory
with a file name and save in the EM file memory.
4. Using the FREAD(700) instruction, read the I/O memory files from the EM
file memory to the I/O memory in the CPU Unit.
Note The following files can be transferred between EM file memory and the CX-
Programmer.
File
Symbols file
Comment file
Program Index file
1. Format the EM Area in the CPU Units as file memory.
2. Place the CX-Programmer online and use the file transfer operations to
transfer the above files from the personal computer to the PLC or from the
PLC to the personal computer.
The internal flash memory in CS/CJ-series CPU Units with unit version 3.0 or
later contains a comment memory area. If neither a Memory Card nor EM file
memory are available, the comment data and section data (symbol table files,
comment files, and program index files) can be stored in or read from the
comment memory.
Note When using CX-Programmer version 5.0 to download projects, either of the
following locations can be selected as the transfer destination for comment
data and section data.
• Memory Card
• EM file memory
• Comment memory (in CPU Unit's internal flash memory)
File name and extension
∗∗∗∗∗∗∗∗.OBJ
∗∗∗∗∗∗∗∗.IOM
∗∗∗∗∗∗∗∗.STD
File name and extension
∗∗∗∗∗∗∗∗.IOM
File name and extension
SYMBOLS.SYM
COMMENTS.CNT
PROGRAM.IDX
Section 3-2
Data transfer direction
Between CPU Unit and EM
file memory
Data transfer direction
Between CPU Unit and EM
file memory
Data transfer direction
Between CX-Programmer
and EM file memory
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