RELANCE 0-52712 工控系統(tǒng)及裝備
DCS是分布式控制系統(tǒng)的英文縮寫（Distributed Control System），在國內(nèi)自控行業(yè)又稱之為集散控制系統(tǒng)。是相對于集中式控制系統(tǒng)而言的一種新型計算機控制系統(tǒng)，它是在集中式控制系統(tǒng)的基礎(chǔ)上發(fā)展、演變而來的。它是一個由過程控制級和過程監(jiān)控級組成的以通信網(wǎng)絡(luò)為紐帶的多級計算機系統(tǒng)，綜合了計算機，通信、顯示和控制等4C技術(shù)，其基本思想是分散控制、集中操作、分級管理、配置靈活以及組態(tài)方便。
DCS是計算機技術(shù)、控制技術(shù)和網(wǎng)絡(luò)技術(shù)高度結(jié)合的產(chǎn)物。DCS通常采用若干個控制器（過程站）對一個生產(chǎn)過程中的眾多控制點進行控制，各控制器間通過網(wǎng)絡(luò)連接并可進行數(shù)據(jù)交換。操作采用計算機操作站，通過網(wǎng)絡(luò)與控制器連接，收集生產(chǎn)數(shù)據(jù)，傳達操作指令。因此，DCS的主要特點歸結(jié)為一句話就是：分散控制集中管理。
Highly integrated. There is no doubt about this, as the demand for factory intelligence continues to increase, more and more equipment and systems need to be integrated into control systems. ABB's latest 800xA system not only integrates alarm management, advanced control, video system, security, and other built-in functions, but also extends to electrical integration. And Rockwell Automation's latest PlantPAx integrates motor control functions.
Information security. The safety situation faced by industrial control systems is becoming increasingly severe, and DCS suppliers have also made great efforts in this regard. The ABB 800xA v6 version further enhances the information security performance of industrial control systems, such as access control or whitelist, monitoring and management process system security, etc. Through seamless data access, productivity, efficiency, and security levels are improved.
DCS is a highly integrated product of computer technology, control technology, and network technology. DCS usually uses several controllers (process stations) to control numerous control points in a production process, and each controller is connected through a network and can exchange data. The operation adopts a computer operation station, which is connected to the controller through a network to collect production data and convey operation instructions. Therefore, the main characteristics of DCS can be summarized in one sentence: decentralized control and centralized management.
DCS stands for Distributed Control System, also known as Distributed Control System in the domestic automation industry. Compared to centralized control systems, it is a new type of computer control system that has developed and evolved from centralized control systems. It is a multi-level computer system composed of process control level and process monitoring level, connected by a communication network. It integrates 4C technologies such as computer, communication, display, and control. Its basic idea is decentralized control, centralized operation, hierarchical management, flexible configuration, and convenient configuration.