hierarchical control system

In order to adapt to the era of information? network and intelligent of modern industrials, a practical and new designing method of PLC hierarchical control system is proposed in this paper.

为适应现代工业的自动化控制系统向信息化、网络化、智能化过渡，本文提出了新型实用的PLC分级递阶智能控制系统的设计思想和方法。

A Hierarchical Control System, composed of an industry computer and a programmable controller ( PC), is established to automatically control the chassis dynamometer and measure the concerned parameters.

用工控机和可编程控制器（简称PC）组成的分级控制系统对汽车测功试验台进行自动控制，可完成不同条件下驱动力、加速力和爬坡性能等多种参数的检测。