描述
九十年代中期,國際上興起的現(xiàn)場總線技術(shù)是計(jì)算機(jī)網(wǎng)絡(luò)通信技術(shù)與自動(dòng)化儀表系統(tǒng)相結(jié)合的成果。國際電工委員會(IEC)對現(xiàn)場總線定義為:現(xiàn)場總線是連接工業(yè)現(xiàn)場儀表與設(shè)置在控制室內(nèi)控制設(shè)備的數(shù)字化、串行、雙向、多變量、多節(jié)點(diǎn)的通信網(wǎng)絡(luò)?,F(xiàn)場總線控制系統(tǒng)(Field Control System,FCS)定義為:由各種現(xiàn)場儀表通過互連與控制室內(nèi)人機(jī)界面所組成的系統(tǒng);一個(gè)全分散、全數(shù)字化、全開放和可互操作的生產(chǎn)過程自動(dòng)控制系統(tǒng)。
目前,現(xiàn)場總線技術(shù)已經(jīng)用于過程自動(dòng)化、制造自動(dòng)化、樓宇自動(dòng)化等領(lǐng)域的現(xiàn)場智能設(shè)備互連通信網(wǎng)絡(luò)中。作為工廠數(shù)字通信網(wǎng)絡(luò)的基礎(chǔ),溝通了生產(chǎn)過程現(xiàn)場與控制設(shè)備之間的聯(lián)系外,還連接著更高控制管理層。因此,它不僅是一個(gè)基層網(wǎng)絡(luò),而且還可構(gòu)成一種開放式、新型全分布控制系統(tǒng),即,集智能、傳感、控制、計(jì)算機(jī)、數(shù)字通信技術(shù)于一身的控制系統(tǒng)。正由于這些特點(diǎn),以現(xiàn)場總線作為技術(shù)支撐的FCS在工業(yè)自動(dòng)化領(lǐng)域有明顯的優(yōu)勢,如很高的精確性、設(shè)計(jì)組態(tài)簡單、擴(kuò)展安裝方便、易于維護(hù)、節(jié)省軟硬件投資等。它被公認(rèn)為第五代控制系統(tǒng),成為當(dāng)今工業(yè)自動(dòng)化發(fā)展的必然趨勢。
產(chǎn)品廣泛應(yīng)用于:電力、石油、礦井提升、港口、供熱、燃?xì)?、供水、污水處理、冶金、造紙、紡織、化工、水利等現(xiàn)代化工業(yè)領(lǐng)域!
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
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據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
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