本程序是基于工程中应用广泛的MM440变频器上位机界面代码，采用自适应PID算法进行传动装置控制。-this program is based on engineering widespread use of MM440 Inverter PC interface code, PID algorithm using adaptive devices for transmission control.

vb实现的关于PID控制的仿真小程序，理解后可更改应用到实际工程中-VB implementation of the PID control on the simulation of small procedures, after understanding can change the application to practical engineering