Example Of Connection Check For Communications - Omron V460-H Series Network Connection Manual

6.2. Example of Connection Check for Communications

This document assumes that you use a ladder program (also referred to as the software part)
to execute "socket open", "send and receive", and "socket close" from the PLC to the code
reader (V460 Series).
The controller sends a "read trigger" command to the code reader. The code reader sends the
read data back to the controller.
An overview of the operation is shown below.
CPU
User memory
Ladder program
Send/
receive
data,
etc.
specified
I/O memory
Receive data
D10000
storage area
to
D12000
ETN
Socket communications
function
Socket open
Press the trigger button
on the code reader to
read the code.
Read data
Receives read data.
Socket close
6. Ethernet Settings
Ethernet Code reader
Reads
code.
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