Ebyte 400SL30-ETH, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd
E90-DTU(400SL30-ETH) User Manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co., Ltd
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connection and disconnection to ensure reliable exchange of data.
(3) When E90-DTU-(400SL30-ETH) is used as TCP Server, it can accept up to 6 Client connections (the number of connections
can be customized). The local port number is a fixed value and cannot be set to 0.
(4) TCP Server can set the maximum number of connections. When the maximum number of connections is reached, you can
choose to kick off the old connection or disable the new connection function according to the command configuration.
3.4.4 UDP Client
(1) UDP Client A connectionless transmission protocol that provides a transaction-oriented simple and unreliable information
transmission service. Without the establishment and disconnection of a connection, only the IP and port need to be established to send
data to the other party. It is usually used for data transmission scenarios where the packet loss rate is not required, the data packet is
small and the transmission frequency is fast, and the data is transmitted to the specified IP.
(2) In UDP Client mode, E90-DTU-(400SL30-ETH) will only communicate with the target port of the target IP. If the data is not
from this channel, the data will not be received by E90-DTU-(400SL30-ETH).
(3) In the UDP client mode, the destination address is set to 255.255.255.255, which can achieve the effect of UDP full network
segment broadcast, and can also receive broadcast data. The E90-DTU-(400SL30-ETH) module supports the support network segment.
Broadcast, such as xxx.xxx.xxx.255 broadcast mode.