Figure 31. Test result of TCP client
4.3. UDP server
UDP is a faster and more efficient transport protocol than TCP, but it is a connectionless transport protocol.
When the USR-TCP232-306 works as UDP server, it doesn’t verify the source address. After receiving a UDP data
packet, the destination IP and port are changed to the one which send the UDP data to USR-TCP232-306.
Figure 32. UDP server mode
For test software,
1. The local host port is the same with the remote port of the USR-TCP232-306,
2. The remote host IP is IP address of USR-TCP232-306, and the remote port is local port of USR-TCP232-306,
3. Then serial device and network device can transmit data bidirectionally.
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