Abstract: The space more freedom position control system is studied for the simulation experiments which provide experimental device space more freedom need space of X、Y axis roll and pitch motion. The system selects the siemens S7300 PLC as lower computer, the WinCC as upper computer. The control system used the modular programming design thought, timer interrupt for a long timing, PID control of electrohydraulic proportional valve opening to make the simulating platform pitch and roll motion of the fast track come true, and the failure to make the solution in the process of debugging.

Key words: PLC, PID, Timer interrupt , WinCC, Super XY curve control

摘要： 空间多自由度位姿控制系统是为实验对象在空间上提供多自由度的模拟平台, 可以在X、 Y 轴方向
上模拟实验对象的横滚与俯仰动作。控制系统下位机选用西门子S 7 - 3 0 0系列P L C, 上位机选用 W i n C C监控软件开
发平台, 采用模块化编程设计思想, 用定时中断来满足实验的长时间定时要求, 用P I D算法控制电液比例阀的开度,
实现模拟平台对实验对象的横滚与俯仰动作的快速跟踪。最后, 对调试过程中出现的难点给出了解决方案。

关键词:  P L C, P I D, 定时中断, W i n C C, 超级XY曲线控件