Omron CJ1M-CPU series User Manual

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File Memory Section 3-2
Reading/Writing EM File Memory Files Using Programming Device (CJ1 and CJ1-H CPU Units Only)
(CX-Programmer or Programming Console)
1,2,3... 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.
Reading/Writing Data Files in EM File Memory Using FREAD(700)and FWRIT(701)
1,2,3... 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.
1,2,3... 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.
Comment Memory (Unit Version 3.0 or Later Only)
The internal flash memory in CS/CJ-series CPU Units with unit version 3.0 or
later contains a comment memory area. The following comment data and sec-
tion data can be stored in or read from the comment memory when both the
Memory Card and EM file memory are not available.
Note When using CX-Programmer Ver. 5.0 to download projects, either of the fol-
lowing locations can be selected as the transfer destination for comment data
and section data (symbol table files, comment files, and program index files).
• Memory Card
• EM file memory
• Comment memory (in CPU Unit’s internal flash memory)
File File name and extension Data transfer direction
Program files ∗∗∗∗∗∗∗∗.OBJ Between CPU Unit and EM
file memory
Data files ∗∗∗∗∗∗∗∗.IOM
Parameter files ∗∗∗∗∗∗∗∗.STD
File File name and extension Data transfer direction
Data files ∗∗∗∗∗∗∗∗.IOM Between CPU Unit and EM
file memory
File File name and extension Data transfer direction
Symbols file SYMBOLS.SYM Between CX-Programmer
and EM file memory
Comment file COMMENTS.CNT
Program Index file PROGRAM.IDX

Omron CJ1M-CPU series Specifications

General

Brand	Omron
Model	CJ1M-CPU series
Category	Controller
Language	English