Omron V530-R150E-3 -, Operation Manual

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53
Communication Settings
Section 4-2
I/O via the RS232C Port
Commands for the V530-R150 are written to the Read Area in the
Programmable Controller. The V530-R150 automatically reads these
commands, executes them, and writes any judgments to the Write
Area.
Program example
“
page 92
Unit number: 00 (fixed)
Checks Read Area for
a command.
Returns command.
The rest of the operation
is not performed if the
command format is
incorrect.
Command sent to
clear Read Area.
Read Area cleared.
Executes command.
Terminal block BUSY terminal turned ON during readings.
Command
requires output
of judgments?
No
Yes
Writes data to Write Area.
Returns write completed
response.
A timeout error occurs if there is no response within 5 s.
An error message appears on the screen and the ERR (error) terminal turns ON.
V530-R150 Programmable Controller
Read Area
Write Area