该程序用于RS232串口、以太网通信转换的例子，看看可能对你有帮助-procedures for the RS232 serial ports, Ethernet switch example, you might look at the help

C#实现TCP通讯，通过CAN转以太网与CAN设备通讯，操作适合规约的通讯充电设备-C# realization of TCP communication, through the CAN Switch Ethernet and CAN communications equipment, suitable for operation protocol communication charging equipment