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yangyg125
豈能事事如意，但求無(wú)愧于心！
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樓主  發(fā)表于: 2008-10-24 21:25
我是一個(gè)剛踏入工控行業(yè)的新人，我知道如果某臺PLC是NPN的，那么它的輸入端的公共端接P24(正24V)，它的輸出端接N24（負24V），那如果某臺PLC的輸入是NPN的，輸出是PNP的，那么輸出端的公共端是怎么接的�。ㄊ墙诱�是接負）？
[ 此帖被yangyg125在2008-10-27 20:54重新編輯 ]
wanghuhong
級別: 網(wǎng)絡(luò )英雄

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1樓  發(fā)表于: 2008-10-24 22:10
我是不懂樓主的意思。

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