1747-BAJMPR
1747-BAJMPR1747-BAJMPR
2.1 DCS或TDCS
(1)分散控制系統(tǒng)DCS與集散控制系統(tǒng)是集通訊、計算、控制、顯示4C(Communication，Computer，Control，CRT)技術(shù)于一身的監(jiān)控技術(shù)。
(2) 從上到下的樹狀拓撲大系統(tǒng)，其中通信(Communication)是關(guān)鍵。
(3) PID在中繼站中，中繼站聯(lián)接計算機與現(xiàn)場儀器儀表與控制裝置。
(4) 模擬信號A/D-D/A帶微處理的混合。
(5) 一臺儀表一對線接到I/O，由控制站掛到局域網(wǎng)LAN。
(6) DCS是控制(工程師站)、操作(操作員站)、現(xiàn)場儀表(現(xiàn)場控制站)的三級結(jié)構(gòu)。
(7) 缺點是成本高，各公司產(chǎn)品不能互換，不能互操作，大DCS系統(tǒng)是各家不同的。
(8) 用于大規(guī)模的連續(xù)過程控制，如石化等。
(9) 制造商:Bailey(美)、Westinghouse(美)、HITACH(日)、LEEDS&NORTHRMP(美)、Siemens(德)、Foxboro(美)、ABB(瑞士)
現(xiàn)貨，現(xiàn)貨，降降降，火火火，火火火……
現(xiàn)貨，現(xiàn)貨，降降降，火火火，火火火……
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◆ 企業(yè)名稱：廈門泰尼電氣有限公司
◆ 聯(lián)系人： 小廖（女士）
◆ 電話：0592-6539066
◆ 手機：18965113601
◆ 傳真：0592-6890859
◆ QQ:1490371370
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