User manual Version 1.3
4-Port DIN-Rail Serial Device Server SE5404D
Copyright © 2011 Atop Technologies, Inc.
All rights reserved. Designed in Taiwan.
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Figure 6.1 TCP test sample program in Visual B
6.2.2 TCPTEST2 in Visual C
Enter in the following command in the command line prompt(Figure 6.2):
TCPTEST2 IP_Address Port_Number
Figure 6.2 TCP test sample program in Visual C
The command
tcptest2 10.0.50.100 4660
brings you to connect to a TCP server of IP address
10.0.50.100
and
port number
4660
, the received data is displayed on the screen and the data typed in is sent to the TCP server of
the designated port number. You can also send binary data in hex format with a leading character “\”. For example,
“\00” and “\FF” represent ASCII code 0 and 255 respectively.
You can also use modem to connect to the serial server. Command "
AT\Od
" sends standard AT command to the
modem which in return responds with "
OK\0D\0A
" message to the host application.
Always use '
=
' then
Enter
key to exit the program.
