3HAA3563-AGA-DCS系統(tǒng) 返回列表頁(yè)

 3HAA3563-AGA

 3HAA3563-AGA

◆品牌熱點(diǎn)\AB\ABB\施耐德\GE\西門子\發(fā)那科\FOXBORO\西屋
 愛價(jià)格好++++++++貿(mào)+++++++++++++*降價(jià)
 愛貨期短+++++++++++++++++++渠道好
 愛產(chǎn)品好+++++++++易++++++++++*
 愛數(shù)量多+++++++++++++++++++++大量庫(kù)存停產(chǎn)備件
 愛售后服務(wù)好+++++++商++++++++++++質(zhì)量保證 
◆：洪工[銷售工程師]
★：    *    
 ★
 ★：
 ★公司全稱：
 廈門航拓電氣有限公司
★公司地址：
 廈門市湖里區(qū)華泰路5-11海西工業(yè)設(shè)計(jì)中心3F309

 
為了保證系統(tǒng)的安全性，使用了復(fù)雜的通信規(guī)約和檢錯(cuò)技術(shù)。所謂通信規(guī)約就是一組規(guī)則，用以保證所傳輸?shù)臄?shù)據(jù)接收與發(fā)送。
 
目前在DCS和PLC系統(tǒng)中一般使用兩類通信手段，即同步的和異步的，同步通信依靠一個(gè)時(shí)鐘信號(hào)來調(diào)節(jié)數(shù)據(jù)的傳輸和接收，異步網(wǎng)絡(luò)采用沒有時(shí)鐘的報(bào)告系統(tǒng)。
 
FCS
 
FCS具有
 
（1）很好的開放性、互操作性和互換性。
 
（2）全數(shù)字通信。
 
（3）智能化與功能自治性。
 
（4）高度分散性。
 
（5）很強(qiáng)的適用性。
 
FCS的關(guān)鍵要點(diǎn)有三點(diǎn)：
 
1．FCS系統(tǒng)的核心是總線協(xié)議，即總線標(biāo)準(zhǔn)。
 
采用雙絞線、光纜或無線電方式傳輸數(shù)字信號(hào)，減少大量導(dǎo)線，提高了可靠性和抗*力。FCS從傳感器、變送器到調(diào)節(jié)器一直是數(shù)字信號(hào)，這就使我們很容易地處理更復(fù)雜、更精確的信號(hào)，同時(shí)數(shù)字通信的差錯(cuò)功能可檢出傳輸中的誤碼。

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