用labview开发的监控界面，下位机通过串口通讯向上位机发送数据，监控软件实时显示状态-Used to monitor the development of labview interface, the next bit plane up through the serial communication bit machine to send data, real-time monitoring software shows the status of

串口通讯，传递数据，画实时曲线 serial communication-serial communication

基于VC的RS232串口异步通讯,实现从232口接收数据-VC-based asynchronous RS232 serial communication

串口通讯，通过PLC通讯协议，实现数据的接收，并按照协议要求显示特定的数据-Serial communication, through the PLC communication protocol, to achieve data reception, and in acco