Star Network Modem
E70-DTU(433NW30-ETH)_User Manual
Chengdu Ebyte Electronic Technology Co., Ltd.
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5.5
TCP multi-connection function
TCP multi-connection function is mainly to solve that in the TCP Sever mode, the user has multiple clients to connect
E70-DTU(433NW30-ETH)and send and receive data at the same time. When E70-DTU(433NW30-ETH) is used as a TCP
Server, up to 6 connections can be established at the same time, the TCP Server sends data to multiple (up to 6) TCP clients
on the connection at the same time. When the number of established connections exceeds six, the connection established at
the beginning will be actively disconnected, that is, the old connection will be kicked off.
5.6
Clearing cached data
When the TCP Client connection is not established, the data received by the serial port will be placed in the buffer area,
the E70-DTU(433NW30-ETH) serial port receive buffer is 400 bytes. When the connection is established, the serial port
buffer data can be set whether to clear according to customer needs.
5.7
Link and data transfer instructions
Link indicates the network connection status of the module. PWR: Power indicator light, it indicates normal if the PWR
is always on after power-on, DATA: data indicator light, green indicator means sending data, blue indicator means receiving
data, LINK: network indicator, blue is for Ethernet indicator light, green is for wireless network indicator. After the radio is
connected to the Ethernet, the LINK blue indicator light is always on. After the wireless is set as the coordinator, the LINK
green indicator light is always on; the wireless is set as the node. When the LINK green indicator light is always on, the
node is connected to the coordinator.
The other is the data transmission indication, which shows the data transmission status of the serial port of the module.
When there is no data transmission on the serial port, the data transmission indicator is extinguished. When there is data
transmission on the serial port, the flashing indicates that the period is 60ms and the indicator lit 10ms
5.8 Restore factory setting
E70-DTU (433NW30-ETH) supports the restoration of the factory settings. The user can restore all parameters factory
settings in the following two ways (the MAC address information remains unchanged).
1. The input pin is restored to the factory settings. After the module is powered on, press RST button for a long time.
After pressing for 5 to 15 seconds continuously, the network parameters are restored to the factory settings.
2.
Click “Restore default parameters” through PC, as shown in the figure below.
