Tcp Client; Udp Server - Ebyte E90-DTU User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.

E90-DTU(433C30E)-V2.0 User Manual

4.4.2. TCP Client

TCP Client is the TCP client. When the device is working, it will actively initiate a connection request to the server

and establish a connection to realize the interaction between serial port data and server data.

To use the client, you need to configure the target IP address/domain name and target port accurately.

UDP Server means that the device does not verify the IP address of the data source when it communicates using the

UDP protocol. After receiving a UDP data packet, it saves the source IP address and source port of the data packet,

and sets it as the destination IP and port, so the device sends The data only sends data packets to the source IP

address and port where the device received the data last time.

This mode is usually used in scenarios where multiple network devices communicate with this device, and the

frequency is high, and the TCP Server cannot meet the conditions.

Using UDP Server requires the remote UDP device to send data first, otherwise the data cannot be sent normally.

[Note] In UDP mode, the data sent by the network to the device should be less than 512Bit per packet, otherwise it

will cause data loss.

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