Chengdu Ebyte Electronic Technology Co.,Ltd.
E18-DTU(Z27-ETH) User Manual
Copyright ©2023
，成都亿佰特电子科技有限公司
Using a random port connection allows you to quickly re-establish the connection if the device unexpectedly disconnects the server,
preventing the server from rejecting the connection due to four incomplete waves, it is recommended to use random ports in client mode。
When you configure TCP client, HTTP client, and MQTT client modes, the device automatically enables random ports
。
3.8.5 Remote upgrade
In order to facilitate the later maintenance and upgrade functions and replace different firmware, the Ethernet part (NA11x series, NB114,
NS1, NT1, etc.) supports online upgrade, and users can upgrade or replace the current firmware through the host computer through the
upgraded firmware provided by our company
。
Network upgrade firmware procedure
：
Step 1: Go to the corresponding location on the official website to download the host computer and "product firmware"
；
Step 2: Open the host computer, click "Menu", and select "Device Upgrade Assistant"；
Step 3: In the pop-up "Device Network Upgrade Assistant" dialog box, click "Search Device" (the computer and the device should be in
the same network segment), and click "Stop Search" after searching for the device；
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