W5500S2E-S1 serial to Ethernet module
W5500S2E-S1 user manual
10
3.3
UDP mode
Ethernet TCP/IP
Communication
Bothway Data
Communication
without Link
User Device
RS232 Serial
Communication
Figure 3-3 UDP mode diagram
For UDP mode in Figure 3-3, W5500S2E-S1 module is required to have the remote IP address and
port number to create an UDP communication. UDP mode communicate is not based on
“connection”. Therefore, it does not guarantee the target device could receive the data correctly or
not. Thus, it requires an upper layer communication protocol to communicate for ensuring the data
accuracy. However, since UDP mode is a simple communication protocol, it could provide a better
communication speed due to less workload on data accuracy. In fact, UDP are not likely to get data
error in network environment under normal workload. In this operating mode, both devices are equal,
and they do not differentiate into server or client.
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