Jinan USR IOT Technology USR-TCP232-410S, Руководство пользователя

Страница: 17 / 46

USR-TCP232-410S User Manual
17 / 46
UDP Server Test Screenshot
4.1.5 TCP and UDP Comparison
TCP UDP
Advantages Stable, no loss
Reliable connection mechanism
Resend after data sending fails No connection mechanism, simple and
flexible
Suit for small packet and high frequency
Accurate data sending interval
Disadvantages Long packet starting
Jam for small packet and high frequency
Inaccurate interval resulted from check
and resend mechanism More loss under severe network
environment
4.1.6 HTTPD Client
It is used to transmit data collected by 410S to HTTP server or gain data from HTTP server.
410S handle complex HTTP protocol so user just do programming for serial, and not need to worry about
HTTP.
When 410S send data to HTTP server via serial, packet header needed is sent by 410S.