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candyliuzhi
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樓主  發(fā)表于: 2009-11-30 12:23
我想在wincc里面的輸入輸出域設置plc里面計數器的計數值,但是計數器的計數值是word變量,設置10就會(huì )出錯,怎么辦?謝謝
還有就是plc里面怎么都是s5t的時(shí)間變量,沒(méi)有s的時(shí)間變量嗎,比如我要及時(shí)100小時(shí)怎么弄。
cvlsam
富士低壓,POD(觸摸屏),PLC專(zhuān)賣(mài)
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1樓  發(fā)表于: 2009-11-30 13:01
Q1:Word變量相當于無(wú)符號整型數據。
Q2:S7-300/400默認的定時(shí)器均為S5time類(lèi)型,最大支持2小時(shí)46分,至于100小時(shí),請參閱PLC編程基礎知識,如何長(cháng)時(shí)間定時(shí),或者使用IEC定時(shí)器,參閱西門(mén)子系統功能手冊。

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candyliuzhi
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2樓  發(fā)表于: 2009-12-01 12:51
謝謝。。。。

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