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    發(fā)布時(shí)間:2018-06-20        瀏覽次數(shù):76        返回列表
    51403519-160

     

    DCS:Distributed Control System;


    MCC: Motor Control Center


    PC: Power Control Panel


    UPS: Uninterrupted Power Supply


    1、 什么是DCS?
    DCS是分布式控制系統(tǒng)的英文縮寫(xiě)(Distributed Control System),在國(guó)內(nèi)自控行業(yè)又稱之為集散控制系統(tǒng)。


    2、 DCS有什么特點(diǎn)?
    DCS是計(jì)算機(jī)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(gè)控制器(過(guò)程站)對(duì)一個(gè)生產(chǎn)過(guò)程中的眾多控制點(diǎn)進(jìn)行控制,各控制器間通過(guò)網(wǎng)絡(luò)連接并可進(jìn)行數(shù)據(jù)交換。操作采用計(jì)算機(jī)操作站,通過(guò)網(wǎng)絡(luò)與控制器連接,收集生產(chǎn)數(shù)據(jù),傳達(dá)操作指令。因此,DCS的主要特點(diǎn)歸結(jié)為一句話就是:分散控制集中管理。  
    3、 DCS的結(jié)構(gòu)是怎樣的?
    從結(jié)構(gòu)上劃分,DCS包括過(guò)程級(jí)、操作級(jí)和管理級(jí)。過(guò)程級(jí)主要由過(guò)程控制站、I/O單元和現(xiàn)場(chǎng)儀表組成,是系統(tǒng)控制功能的主要實(shí)施部分。操作級(jí)包括:操作員站和工程師站,完成系統(tǒng)的操作和組態(tài)。管理級(jí)主要是指工廠管理信息系統(tǒng)(MIS系統(tǒng)),作為DCS更高層次的應(yīng)用。


    4、 DCS的控制程序是由誰(shuí)執(zhí)行的?
    DCS的控制決策是由過(guò)程控制站完成的,所以控制程序是由過(guò)程控制站執(zhí)行的。


    5、 過(guò)程控制站的組成如何?
    DCS的過(guò)程控制站是一個(gè)完整的計(jì)算機(jī)系統(tǒng),主要由電源、CPU(中央處理器)、網(wǎng)絡(luò)接口和I/O組成。

     

    【誠(chéng)信經(jīng)營(yíng)】【質(zhì)量可靠】【進(jìn)口原裝】【拆包防偽】

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    【主 營(yíng)】: PLC模塊 DCS系統(tǒng)備件· 機(jī)器人配件
    【價(jià) 格】: QQ詳談:454218677
    【發(fā)布人】:李工電 話 :13306008324
                   

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