This product is resistant to high temperatures and can operate from -40 degrees to plus 85 degrees. Super anti-interference ability, can be connected to external high-current AC contactor and relay, will not crash under strong electromagnetic interference.<br> The true 100M speed enables reliable communication with zero delay commands. Industrial grade products. Support for automatic IP acquisition. Support 10 TCP client connections under the TCP server. Through the provided configuration software, you can configure five working modes: TCP server, TCP client, UDP server, UDP client, DNS domain name.<br> 4. In the figure above, the COM1 first relay common terminal, NO1 first relay is normally open, and NC1 second relay is normally closed. COM2, NO2, NC2 are the second way, the function is the same as above.<br> Reset, used to restore the factory equipment. In the absence of power, use a toothpick or a sharp object to hold the reset hole intact, connect the power supply, and then turn on the toothpick next to the LED indicator light to restore the factory equipment IP to 192.168.0.105.<br> If you want to upgrade the software, you must be in the reset state to upgrade. After successful reset, the LED flashes quickly (flashes twice a second). If you want the controller to operate normally, you need to power it on again. The normal running LED is in slow-flash status (flashing once every second).Introduction to working mode:<br> The working mode is configured with the provided configuration software.<br> 1, TCP server<br> In this mode, the device can only be connected through the TCP client and supports the connection of 10 TCP clients.<br> 2, TCP client<br> In this mode, the device actively connects to the TCP server (remote IP and remote port number are parameters for device connection). Only one server can be connected.<br> 3, UDP server<br> In this mode, any UDP communication is supported.<br> 4, UDP client<br> In this mode, only UDP communi