Yokogawa ADV151-P00
咨詢熱線--17750626260
可編程序控制器(以下簡稱PLC)是在程序控制器和微機控制器的基礎上發(fā)展起來的微機技術和繼電器常規(guī)控制概念相結合的產(chǎn)物。從廣義上講,PLC是一種計算機系統(tǒng),比一般計算機具有更強的與工業(yè)過程相連接的輸入輸出接口,并已成為自動化控制系統(tǒng)的基本裝置。PLC已經(jīng)廣泛應用于機械、冶金、化工、汽車、輕工等行業(yè)中,已基本取代了傳統(tǒng)的繼電器和接觸器的邏輯控制。用PLC來控制系統(tǒng)設備,其工作的可靠性要比單純繼電器和接觸器控制大大提高。就PLC本身而言,平均無故障時間一般已可達3~5萬小時;而三菱的F系列,據(jù)稱其平均無故障時間已達30萬小時。所以,整個PLC控制系統(tǒng)的可靠性,主要取決于PLC的外圍設備,比如輸入器件中的行程開關、按鈕、接近開關,輸出器件中的接觸器、繼電器和電磁閥等。另外,從軟件程序的編制來考慮,如果能編制出一個帶有監(jiān)控的程序,對提高系統(tǒng)的可靠性也有很大好處。下面就如何提高PLC控制系統(tǒng)的可靠性進行一些探討。
【誠信經(jīng)營】【質(zhì)量可靠】【進口原裝】【拆包防偽】
【超大庫存】【當天付款】【順豐速運】【歡迎搶購】
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廈門莫格電氣自動化有限公司
張芳(銷售工程師)
電 話:0592-6514182/17750626260
Q Q:177763184
郵 箱:177763184@qq.cm
傳 真:0592-6514751
網(wǎng)址:http://www.mogget.cn
誠信經(jīng)營,質(zhì)量為首,誠信至上,莫格電氣竭誠為您服務!
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