描述
VE5009 KJ1501X1-BC3
控制系統(tǒng)對(duì)于經(jīng)常高度重視的美國(guó)關(guān)鍵基礎(chǔ)設(shè)施的運(yùn)行至關(guān)重要互連和相互依賴(lài)的系統(tǒng)。重要的是要注意,大約90%的國(guó)家的關(guān)鍵基礎(chǔ)設(shè)施是私人擁有和經(jīng)營(yíng)。聯(lián)邦機(jī)構(gòu)也經(jīng)營(yíng)許多的上述工業(yè)流程;其他例子包括空中交通管制和材料處理(例如,郵政服務(wù)郵件處理)本節(jié)提供了SCADA,dcs和PLC系統(tǒng),包括典型的架構(gòu)和組件。SCADA/DCS和PLC的概述
SCADA系統(tǒng)是高分布式系統(tǒng),經(jīng)常用于控制地理上分散的資產(chǎn),分散在數(shù)千平方公里,其中集中的數(shù)據(jù)采集和控制至關(guān)重要到系統(tǒng)操作。它們用于配水系統(tǒng),如配水和廢水收集系統(tǒng),油氣管道,電網(wǎng)和鐵路運(yùn)輸系統(tǒng)。
一個(gè)SCADA控制中心長(zhǎng)期對(duì)現(xiàn)場(chǎng)進(jìn)行集中監(jiān)控通信網(wǎng)絡(luò),包括監(jiān)控報(bào)警和處理狀態(tài)數(shù)據(jù)?;谛畔倪h(yuǎn)程站接收到的,可以將自動(dòng)化或操作者驅(qū)動(dòng)的監(jiān)控命令推送到遠(yuǎn)程站控制設(shè)備,通常被稱(chēng)為現(xiàn)場(chǎng)設(shè)備?,F(xiàn)場(chǎng)設(shè)備控制本地諸如打開(kāi)和關(guān)閉閥門(mén)和斷路器的操作,從傳感器系統(tǒng)收集數(shù)據(jù),以及監(jiān)控當(dāng)?shù)丨h(huán)境的報(bào)警條件。DCS用于控制工業(yè)過(guò)程,如發(fā)電,油氣煉油,水和廢水處理,以及化學(xué),食品和汽車(chē)生產(chǎn)。
DCS集成為一個(gè)控制架構(gòu),包含監(jiān)督多個(gè)集成子系統(tǒng)的監(jiān)督級(jí)別的控制它們負(fù)責(zé)控制本地化流程的細(xì)節(jié)。產(chǎn)品和過(guò)程控制通常通過(guò)部署反饋或前饋控制環(huán)來(lái)實(shí)現(xiàn),其中關(guān)鍵產(chǎn)品和/或工藝條件自動(dòng)保持在所需的設(shè)定點(diǎn)附近。完成所需產(chǎn)品和/或工藝公差在指定的設(shè)定點(diǎn)附近,具體的可編程控制器(PLC)被用于現(xiàn)場(chǎng),PLC上的比例,積分和/或差分設(shè)置被調(diào)整到提供期望的公差以及過(guò)程紊亂期間的自校正速率。使用DCS廣泛地在基于過(guò)程的行業(yè)。PLC是基于計(jì)算機(jī)的固態(tài)設(shè)備,用于控制工業(yè)設(shè)備和工藝。而PLC是整個(gè)SCADA和DCS系統(tǒng)中使用的控制系統(tǒng)組件,它們通常是較小的控制系統(tǒng)配置中的主要組件用于提供監(jiān)管控制汽車(chē)裝配線(xiàn)和發(fā)電廠(chǎng)吹灰器控制等離散工藝。PLC是廣泛應(yīng)用于幾乎所有的工業(yè)過(guò)程。
產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢(shì)價(jià)格,大量現(xiàn)貨。
主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門(mén)子,摩托羅拉,安川。力士樂(lè)。ACSO,橫河等進(jìn)口品牌。 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
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專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅
15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家