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就怕不學(xué)aaa
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樓主  發(fā)表于: 2016-03-30 21:12
看PLC編程手冊高速計數指令時(shí)，看到脈沖指令大多寫(xiě)請使用晶體管輸出？使用脈沖指令一定要晶體管輸出？？？繼電器輸出不能使用脈沖指令？？？那只用編碼器測量，用脈沖指令控制，用PLC繼電器輸出型行不行呀？？？
dannyz
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1樓  發(fā)表于: 2016-04-01 14:07
電磁繼電器輸出次數通斷時(shí)間長(cháng)，輸出壽命次數短（s7-200只有10w次左右）。

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