步进电机联机控制，将通讯电缆连接到计算机的COM1与控制器的RS-232口，再打开控制器的电源开关并设置好联机，最后打开上位机界面，(The control resource, data type, data analysis and processing library function are used to realize automatic measurement of control system. It mainly collects light intensity signals and angle signals from rotation.)