Omron CS1G/H-CPUxx-EV1 Programming Manual page 253

Manipulating Files
FREAD(700)/FWRIT(701): Transfers
between I/O memory and file memory
CPU Unit
FREAD/FWRIT
instruction
I/O memory
I/O memory
FREAD(700)/FWRIT(701) Instructions
The CMND(490) (DELIVER COMMAND) instruction can be executed to issue
a FINS command to the CPU Unit itself to perform file operations. File opera-
tions such as file formatting, deletion, copying, and renaming can be per-
formed on files in the Memory Card or EM file memory (Not supported by CS-
series CS1 CPU Units that are pre-EV1).
Memory Card
I/O memory
EM file memory
FREAD(700) and FWRIT(701) transfer data between I/O memory and file
memory. All CJ CPU Units can transfer binary data (.IOM files) and the V1
CPU Units can also transfer ASCII files (.TXT and .CSV files).
Name Mnemonic
READ DATA FREAD(700)
FILE
WRITE DATA FWRIT(701)
FILE
CMND(490): File memory operations
(Not possible for CS-series CPU Units that are pre-EV1)
CPU Unit
CMND
instruction
Operation
Operation
I/O memory
Reads specified data file data or data elements
to specified I/O memory.
Uses specified I/O memory area data to create
a specified data file.
Section 5-2
Memory Card
EM file memory
Description
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