W5500S2E-S1 serial to Ethernet module
W5500S2E-S1 user manual
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3
Operating modes
WIZS2E module supports TCP server, TCP client and UDP modes; Below demonstrate these
operating modes.
3.1
TCP server mode
Ethernet TCP/IP
Communication
RS232 Serial
Communication
①
Send Link
Request
②
Bothway Data
Communication
TCP Client
TCP Server
User Device
Figure 3-1 TCP server mode diagram
Figure 3-1 shows, W5500S2E-S1 module open a local port to listen TCP requests in TCP server
mode. The default port number is 5000 and it is waiting for client connections. After the connection
has created, it will start data communication.
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