Q80BD-J71BR11

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產(chǎn)品精品  價(jià)格百年一遇

廈門岳航計(jì)算機(jī)工程有限公司




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廈門市思明區(qū)湖濱東路湖光大廈8樓A座
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在梯形圖中，要用大量的輸入觸點(diǎn)符號(hào)。設(shè)計(jì)員應(yīng)搞清輸入信號(hào)與“1”和“0”狀態(tài)的關(guān)系。若外部信號(hào)觸點(diǎn)是常開觸點(diǎn)，當(dāng)觸點(diǎn)動(dòng)作時(shí)（即閉合），則輸入信號(hào)為“1”，若信號(hào)觸點(diǎn)是常閉觸點(diǎn)，當(dāng)觸點(diǎn)動(dòng)作時(shí)（即打開），則輸入信號(hào)為“0”。

    對(duì)一臺(tái)特定的數(shù)控機(jī)床來(lái)說，只要能滿足控制要求，對(duì)梯形圖的結(jié)構(gòu)、規(guī)模并沒有硬性的規(guī)定。設(shè)計(jì)員可以按各種思路和邏輯方案進(jìn)行編程。但理想的梯形圖程序除能滿足機(jī)床控制要求外，還應(yīng)具有*少的步數(shù)、*短的順序處理時(shí)間和易于理解的邏輯關(guān)系。
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