KUC321AE-HIEE300698R1  分散控制系统 具体实现了信号的输入、变换

KUC321AE-HIEE300698R1分散控制系统（DCS）是一种先进的控制系统，以微处理器为基础，采用控制功能分散、显示操作集中的设计原则。这种系统采用多层分级、合作自治的结构形式，其主要特征是集中管理和分散控制。DCS在电力、冶金、石化等各行各业都获得了极其广泛的应用。

在DCS中，KUC321AE-HIEE300698R1过程控制级具体实现了信号的输入、变换、运算和输出等分散控制功能。过程控制级的控制装置各不相同，如过程控制单元、现场控制站、过程接口单元等等，但它们的结构形式大致相同，可以统称为现场控制单元FCU。

过程管理级由工程师站、操作员站、管理计算机等组成，完成对过程控制级的集中监视和管理，通常称为操作站。DCS的硬件和软件，都是按模块化结构设计的，所以DCS的开发实际上就是将系统提供的各种基本模块按实际的需要组合成为一个系统，这个过程称为系统的组态。

KUC321AE-HIEE300698R1分散控制是指系统中的控制部分表现为若干个分散的、有一定相对独立性的子控制机构，这些机构在各自的范围内各司其责，各行其是，互不干涉，各自完成自己的目标。当然这些目标是整个系统目标中的分目标。

KUC321AE-HIEE300698R1分散控制的优点包括针对性强、信息传递效率高、系统适应性强。缺点是信息不完整，整体协调困难。分散控制适应系统组织较松散的部门，如城市各交叉路口的交通管理、企业集团的一些外围企业等。

KUC321AE-HIEE300698R1  分散控制系统 具体实现了信号的输入、变换

KUC321AE-HIEE300698R1 Distributed control system (DCS) is an advanced control system, based on the microprocessor, using the design principle of decentralized control function and centralized display operation. This kind of system adopts the structure form of multi-tiered, cooperative and autonomous, and its main characteristics are centralized management and decentralized control. DCS has been widely used in power, metallurgy, petrochemical and other industries.

In DCS, the KUC321AE-HIEE300698R1 process control stage realizes the decentralized control functions of signal input, transformation, operation and output. The control devices of process control level are different, such as process control unit, field control station, process interface unit, etc., but their structural form is roughly the same, and they can be collectively referred to as field control unit FCU.

The process management level is composed of engineer station, operator station, management computer, etc., to complete the centralized monitoring and management of the process control level, usually called the operation station. The hardware and software of DCS are designed according to the modular structure, so the development of DCS is actually to combine the various basic modules provided by the system into a system according to the actual needs, this process is called the configuration of the system.

KUC321AE-HIEE300698R1 Decentralized control means that the control part of the system is manifested as a number of decentralized and relatively independent sub-control institutions, which assume their responsibilities within their respective scope, act independently, and do not interfere with each other to complete their own goals. Of course, these goals are sub-goals of the overall system goals.

The advantages of KUC321AE-HIEE300698R1 decentralized control include strong pertinency, high information transfer efficiency, and strong system adaptability. The disadvantage is that the information is incomplete and the overall coordination is difficult. Decentralized control is adapted to the more loosely organized departments of the system, such as traffic management at urban intersections and some peripheral enterprises of enterprise groups.