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Hewlett Packard 4935A
發(fā)布時間:2018-06-20        瀏覽次數(shù):100        返回列表
Hewlett Packard 4935A 

 

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(Distributed Control System),在國內(nèi)自控行業(yè)又稱之為集散控制系統(tǒng)。


2、 DCS有什么特點?
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。  
3、 DCS的結(jié)構(gòu)是怎樣的?
從結(jié)構(gòu)上劃分,DCS包括過程級、操作級和管理級。過程級主要由過程控制站、I/O單元和現(xiàn)場儀表組成,是系統(tǒng)控制功能的主要實施部分。操作級包括: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的控制程序是由誰執(zhí)行的?
DCS的控制決策是由過程控制站完成的,所以控制程序是由過程控制站執(zhí)行的。


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

 深圳長欣

【誠信經(jīng)營】【質(zhì)量可靠】【進口原裝】【拆包防偽】

 【大量庫存】【當(dāng)天付款】【順豐速運】【歡迎搶購】

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

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