利用数据板卡进行数据采集，利用半满的方式将模拟量转换成数字量-Data card for data acquisition, the use of half-full way to convert analog into digital

串口曲线采集,采用电脑RS232串口通信采集永宏PLC的模拟量数据，并用图形实时显示曲线。-Serial curve acquisition, computer RS232 serial communication Yonghong PLC acquisition of analog data, and real-time graphical display curve.

基于研华PCI-1747U数据采集卡的多通道模拟量数据采集，并用图表动态表示出来。-Based on Advantech PCI-1747U data acquisition card multi-channel analog data acquisition, and dynamic representation of the chart.