Memory Card Dimensions; Installing And Removing The Memory Card - Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual

File Memory
Reading/Writing I/O Memory Files in EM File Memory Using FREAD(700)and FWRIT(701)
1,2,3...
1,2,3...
2-5-5

Memory Card Dimensions

2-5-6

Installing and Removing the Memory Card

Installing the Memory Card
68
File
I/O memory 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
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.
42.8
Note In a Duplex CPU System, install the Memory Card into the active CPU Unit.
Even if Memory Cards are mounted in both CPU Units, there will be no duplex
initialization to match the data on the two Memory Cards. Therefore there is
no guarantee that operation will continue after an operation switching error.
File name and extension
.IOM
File name and extension
SYMBOLS.SYM
COMMENTS.CMT
36.4
Section 2-5
Data transfer direction
Between CPU Unit and EM
file memory
Data transfer direction
Between CX-Programmer
and EM file memory
3.3