C#串口和欧姆龙PLC通信.可以控制PLC辅助继电器-C# serial and Omron PLC Communications

C#写的控制串口继电器模块的代码，通过发送指令来控制多路串口继电器的开关。-Serial port control relay module C# to write the code, switch by sending commands to control multiple serial relay.