这是一个采用中断方式的信号采集程序。它采用硬中断方式共有48路信号输入通道，可以采集电压信号。0MA-10MA的电流信号-This is a way of using interrupt signal acquisition process. It uses a total of 48 hardware interrupt signal input channel, voltage signal can be collected. 0MA-10MA of the current signal