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{笑傲江湖}
不斷進(jìn)步，勇攀高峰！
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樓主  發(fā)表于: 2011-03-04 11:19
各位大俠好，小弟在學(xué)習PLC的時(shí)候很多指令與掃描周期有關(guān)，我想請問(wèn)掃描周期是從指令執行后一直保持到程序執行到END，還是從指令執行后保持到程序下次再執行到這條指令后結束��？
cvlsam
富士低壓，POD（觸摸屏），PLC專(zhuān)賣(mài)
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1樓  發(fā)表于: 2011-03-04 11:22
你需要去買(mǎi)一本PLC教材 ，任何一本都可以，在其上已經(jīng)明確說(shuō)明了PLC的工作原理，請詳細參閱。

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