Data Sheet

RS232/485 TO ETH User Manual
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RS232/485 TO ETH 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.
RS232/485 TO ETH 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 RS232/485 TO ETH in TCP Server mode simultaneously.
RS232/485 TO ETH works in TCP Server mode supports 8 client connections at most.
RS232/485 TO ETH also supports Keep-Alive function, baud rate synchronization and Modbus
gateway.
2.2.3. UDP CLIENT
Figure 6 UDP Client
UDP transport protocol provides simple and unreliable communication services. No
connection connected
/disconnected. User only needs to configure Remote IP/Port then can realize data transmission.
In UDP Client mode, RS232/485 TO ETH will only communicate with Remote IP/Port. If data
don’t from Remote IP/Port, it won’t be received by RS232/485 TO ETH.
In UDP Client mode, if user configure Remote IP to 255.255.255.255, RS232/485 TO ETH can
achieve UDP broadcast to all network segment and receive broadcast data. User can also
configure Remote IP to xxx.xxx.xxx.255 to realize UDP broadcast in same network segment.