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huyou
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樓主  發(fā)表于: 2010-08-18 21:40
最近工廠(chǎng)有臺設備要改造，原先的電路是繼電器邏輯線(xiàn)路，想改成PLC加人機界面控制，原先設備的一臺油泵，是一個(gè)啟動(dòng)按鈕加一個(gè)停止按鈕控制的，這個(gè)功能想保留，另外想在觸摸屏中用一個(gè)按鈕來(lái)控制泵的啟動(dòng)和停止。
請教各位，如何實(shí)現呢？
謝謝！
[fly]忽悠，接著(zhù)忽悠……[/fly]
wwcwwc
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1樓  發(fā)表于: 2010-08-19 08:15
ld  m0.0           //M0.0是觸摸屏啟動(dòng)按鈕
set  q0.0          //Q0.0是輸出繼電器

ld  m0.1          //M0.1是觸摸屏的停止按鈕
o   i0.0             //電機保護輸入端
rst  q0.0          //
以上是用西門(mén)子編程的一種簡(jiǎn)單方法。

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