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wbdx998448
專(zhuān)業(yè)維修變頻器，工控電路板，PLC編程，機電生產(chǎn)設備維修與改
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樓主  發(fā)表于: 2014-10-27 22:00
剛接觸西門(mén)子PLC,用SMART200 ST20控制兩個(gè)氣缸1個(gè)步進(jìn)電機動(dòng)作，為什么剛下載程序進(jìn)去，動(dòng)作都正常，當關(guān)電重啟后，前面兩個(gè)氣缸都動(dòng)作了，然后會(huì )直接跳過(guò)步進(jìn)這一步執行，步進(jìn)電機都沒(méi)有執行就下一步了希望高手幫找找原因

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