DCS，是過(guò)程控制儀表發(fā)展起來(lái)的智能儀表，RAC2.2-150-380-A0D-W1在多個(gè)行業(yè)和領(lǐng)域有著重要的應(yīng)用，并且DCS是一個(gè)由過(guò)程控制級(jí)和過(guò)程監(jiān)控級(jí)組成的以通信網(wǎng)絡(luò)為紐帶的多級(jí)計(jì)算機(jī)系統(tǒng)，而DCS控制系統(tǒng)主要分為三層：底層、中層和上層。每一層都由不同部分構(gòu)成，對(duì)DCS控制系統(tǒng)有著重要的作用，接下來(lái)我們就一起來(lái)看看DCS控制系統(tǒng)硬件組成部分及其功能。（儀器儀表世界網(wǎng)提供）
DCS硬件組成部分：
底層：控制層，CPU卡，I/O卡，卡籠及機(jī)柜等
中層：管理層，控制站通信卡，操作站，工程師站，打印機(jī)站，歷史服務(wù)器等
上層：工廠層，文件服務(wù)器，網(wǎng)絡(luò)服務(wù)器等。
DCS硬件組成部分的功能：
1、RAC2.2-150-380-A0D-W1人及界面，操作員站、工程師站、歷史站，俗稱上位機(jī)，用于操作設(shè)備，監(jiān)視參數(shù)，系統(tǒng)組態(tài)，歷史記錄等；
2、DPU，俗稱下位機(jī)，用于執(zhí)行系統(tǒng)邏輯、運(yùn)算并發(fā)出指令；
3、I/O模件，用于收集現(xiàn)場(chǎng)一次設(shè)備、元件的參數(shù)，硬接線實(shí)現(xiàn)，分模擬量和開關(guān)量等；
4、繼電器柜，用于執(zhí)行DPU的指令，如設(shè)備啟停等；
5、系統(tǒng)電源柜，用于DCS系統(tǒng)電源供給，雙路；
6、RAC2.2-150-380-A0D-W1數(shù)據(jù)高速公路，同軸電纜或雙絞線，用于數(shù)據(jù)傳輸；7、數(shù)字交換機(jī)，用于聯(lián)系上位機(jī)和下位機(jī)的樞紐；
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RAC2.2-150-380-A0D-W1
RAC2.2-250-380-A0I-Z1
RAC3.5-100-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-100-460-A01-W1-220
RAC4.3-400-460-AP0-W1
RAC3.5-150-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-150-460-A0I-W1-220
RAC3.1-150-460-100-W1-220
RAC2.1-150-460-A0I-W1-220
RAC3.5-200-460-L00-Z1-220
RAC3.6-150-460-L00-Z1-2
RAC2.3-250-460-L00-W1
RAC2.3-200-460-L00-W1
RAC2.2-200-460-A00-W1
RAC2.2-200-460-L00-W1
RAC3.5-200-460-L00-W1-220
RAC3.5-150-460-L00-W1-220
RAC3.1-150-460-A0I-Z1-220
RAC3.5-150-460-A01-W1-220
256047-02738-A04
256047-02738-A04
234271-10388-A06
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MITSUBISHI .AUCPU Fast .XLT
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Customs services and international tracking provided
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SONY XC-77 CCD VIDEO CAMERA MODULE
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WESTINGHOUSE 691B687A25 USPP 691B687A25
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DODGE 126198 NSFP 126198
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HITACHI KP-D50 KP-D50U COLOR DIGITAL CAMERA
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