Schneider 140CRP93100
Schneider 140CRP93100
Schneider 140CRP93100
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S7 PLC畫(huà)出梯形圖的過(guò)程與規(guī)矩
依據(jù)操控系統(tǒng)的動(dòng)作要求,畫(huà)出梯形圖。
梯形圖規(guī)劃規(guī)矩
(1)觸點(diǎn)應(yīng)畫(huà)在水平線上,而且依據(jù)自左至右、自上而下的準(zhǔn)則和對(duì)輸出線圈的操控途徑來(lái)畫(huà)。
(2)不包括觸點(diǎn)的分支應(yīng)放在筆直方向,以便于辨認(rèn)觸點(diǎn)的組合和對(duì)輸出線圈的操控途徑。
(3)在有幾個(gè)串聯(lián)回路相并聯(lián)時(shí),應(yīng)將觸頭多的那個(gè)串聯(lián)回路放在梯形圖的最上面。在有幾個(gè)并聯(lián)回路相串聯(lián)時(shí),應(yīng)將觸點(diǎn)最多的并聯(lián)回路放在梯形圖的最左邊。這種安排,所編制的程序簡(jiǎn)潔明了,句子較少。
(4)不能將觸點(diǎn)畫(huà)在線圈的右邊。
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