B&B Electronics VESP211 Series - Manual - Manual (Page 30)

Section 4 - Configuring the Serial Server Vlinx VESR4x4 Serial Server
Page 30 of 66 Manual Documentation Number: VESP211-5011m
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5. Select:

at power up
- if you want the serial server to always be connected
 when the serial port receives data - if you only want to establish a
connection when there is data to be sent.
Setting the serial server to operate as a TCP Server
1. Select TCP protocol.
2. Select
to wait for connections (server)
.
The configuration options change. The server IP address box disappears
and the
number of connections box appears.
3. Type the port number in the
I want to wait for connection on TCP port
number: box.
4. Select the maximum number of connections desired in the
and limit the
number of connections to:
drop down box.
Figure 26. TCP Server Settings
UDP Configuration
UDP (User Datagram Protocol) enables applications using UDP socket
programs to communicate with the serial ports on the serial server. UDP
protocol provides connectionless communications, which allows data to be
broadcast to and received from multiple nodes on a network.
In UDP mode, if you want to control what network node receives data, you
must specify the IP address and UDP port the data will be sent to. You can
choose to send to:
 Nobody
 All nodes at a specific UDP port number. (This is called broadcast.)
 Specific IP addresses and UDP port numbers. (This is called unicast.)
 A range of IP addresses and UDP port numbers. (This is called unicast
range.)