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wanglong704
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樓主  發(fā)表于: 2017-12-21 12:28
兩個(gè)開(kāi)關(guān)電源分別接兩臺PLC，兩臺PLC進(jìn)行IO通訊進(jìn)行直接連接可以嗎？
像圖上這樣，兩PLC都是PNP輸入輸出。然后我把PLC1的輸出端信號接到PLC2的輸入端信號，PLC2的輸入端信號接到PLC1的輸出端信號。

358273433
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1樓  發(fā)表于: 2017-12-22 14:30
把二只開(kāi)關(guān)電源的0V短接，就可以了。

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