The TCP Client Function and TCP Server Function of Serial Device Server-USR-TCP232-410S

TCP Client Function:

TCP Client provides Client connections for TCP network services. TCP Client device will connect to server to realize data transmission between the serial port device and server. According to the TCP protocol, TCP Client has connection/disconnection status differences to ensure reliable data transmission. TCP Client mode supports Keep-Alive function: After establishing connection, USR-TCP232-410S will send Keep-Alive package in every 15 second to check TCP connection and USR-TCP232-410S will disconnect and reconnect to server if any connection exception occurs. TCP Client mode also supports baud rate synchronization, USR Cloud and Modbus gateway. USR-TCP232-410S works in TCP Client mode needs connect to TCP Server and needs set the parameter: Remote IP/Port. USR-TCP232-410S works in TCP Client won’t accept other connection request except target server and will access server with random local port if configuring local port to 0.

TCP Client

TCP Client

TCP Server Function

USR-TCP232-410S works in TCP Server mode will listen network connections and build network connections, commonly be used for communication with TCP clients on a LAN. According to the TCP protocol, TCP Server has connection/disconnection status differences to ensure reliable data transmission. USR-TCP232-410S works in TCP Server mode will listen local port which user set and build connection after receiving connection request. Serial data will be sent to all TCP Client devices connected to 410s in TCP Server mode simultaneously. USR-TCP232-410S works in TCP Server mode supports 8 client connections at most. USR-TCP232-410S also supports Keep-Alive function, baud rate synchronization and Modbus gateway.  

TCP Server

TCP Server