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W5500S2E-Z1 serial to Ethernet module
3 Operating modes
WIZS2E module supports TCP server, TCP client and UDP modes; Below demonstrate these
operating modes.
3.1 TCP server mode
TCP Client
②Bothway Data
①Send Link
Ethernet TCP/IP
Communication
Request
Communication
RS232 Serial
Communication
User Device
TCP Server
Figure 3-1 TCP server mode diagram
Figure 3-1 shows, W5500S2E-Z1 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.
W5500S2E-Z1 user manual
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