Operating Modes; Tcp Server Mode; Tcp Client Mode; Udp Mode - Wiznet W5500S2E User Manual

3 Operating modes

W5500S2E module supports TCP server, TCP client, and UDP and Modbus modes. The
followings demonstrate these operating modes.

3.1 TCP server mode

TCP
Client
In TCP server mode, W5500S2E listens on a local port and waiting for the connection
from a TCP client. They can start communication each other after link established.

3.2 TCP client mode

TCP
Server
In TCP client mode, W5500S2E connects to a preset TCP server. If failure to connect, it
can be configured to re-connect continuously. They can start communication each other
after link established.

3.3 UDP mode

UDP peer
In UDP mode, W5500S2E acts as an UDP peer to send data to another preset UDP peer.
W5500S2E can also receive data from other UDP peers.
W5500S2E user manual
W5500S2E serial to Ethernet module
TCP/IP
network
Figure 3-1 TCP server mode diagram
TCP/IP
network
Figure 3-2 TCP client mode diagram
TCP/IP
network
Figure 3-3 UDP mode diagram
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Seri
Serial
W5500S2E
(TCP server)
Ser
Serial
W5500S2E
(TCP client)
Ser
Serial
W5500S2E
(UDP peer)
User device
User device
User device