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wxlwxswnn
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樓主  發(fā)表于: 2010-11-11 20:29
請問(wèn)高手PLC怎么知道現實(shí)中的時(shí)間，比如有四盞照明燈從晚上6：00開(kāi)始，每盞亮一個(gè)小時(shí)。。用S7-300的編程指令怎么編寫(xiě)程序？？？？？

謝謝！
[ 此帖被wxlwxswnn在2010-11-15 18:33重新編輯 ]
meiyouleya
天黑路滑，社會(huì )復雜�。�！
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1樓  發(fā)表于: 2010-11-13 09:37
直接調用系統時(shí)間做個(gè)比較就好了嘛

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