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xulifei
與自動(dòng)化，工控握手！
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樓主  發(fā)表于: 2012-04-30 20:40
小弟發(fā)現個(gè)問(wèn)題~~~~PLC上輸入只有一個(gè)COM口，為什么輸出的COM分開(kāi)呢~~~~~求大大告知~~謝謝了
學(xué)習，努力
chenpingyg
機械是柱石,電氣是靈魂.
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1樓  發(fā)表于: 2012-04-30 22:09
輸入點(diǎn)全部都是24V的輸入，所以共用一個(gè)COM。
輸出點(diǎn)可以分組輸出，一般4個(gè)點(diǎn)共用一個(gè)COM，如2樓所說(shuō)，根據負載的不同，可以使用不同的輸出電壓，如果所有的輸出電壓一樣，可以把所有的輸出COM并聯(lián)起來(lái)。
自己的事情自己做.

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