对于硬盘利用H无穷，LQR，ＰＩＤ，极点配置进行控制，包括程序和完整分析报告。-For hard drive using H infinity, LQR, PID, pole placement control, including procedures and a complete analysis report.

This VB project is simple example,supported by RSLinx Gateway Installation, to communication RSlinx OPC with AB PLC.