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一、PC控制系统的初步设计1.被控过程的描述过程控制系统的设计是根据被控过程的工艺流程特点和要求,选用适当的控制装置组成满足特定应用场合需要的控制系统来实现生产过程的实时控制。因而,在熟悉工艺流程特点和明了控制任务要求的基础上,设计一个PC控制系统的首要任务是详细罗列该控制系统的全部功能和要求,其中包括系统方框图组成的描述,PC及其I/O与被控过程及其他控制器或
First, the PC control system design 1. Controlled process description Process control system design is based on the controlled process of the process characteristics and requirements, the selection of appropriate control devices to meet the needs of specific applications to achieve the desired control system to achieve the production process Real-time control. Therefore, familiar with the characteristics of the process and clear control tasks based on the design of a PC control system, the first task is a detailed listing of the control system, all the features and requirements, including the system block diagram of the composition of the description of the PC and its I / O With the accused process and other controllers or