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caizebin
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樓主  發(fā)表于: 2020-03-24 08:45


          各位大神，問(wèn)個(gè)小問(wèn)題，現場(chǎng)一個(gè)開(kāi)度閥門(mén)，是通過(guò)4-20ma的模擬量控制其開(kāi)度的，然后閥門(mén)反饋4-20ma電流到PLC，但是模擬量輸入和輸出信號是通過(guò)一根4芯電纜，其中2根到輸入模塊，2根到輸出模塊。請問(wèn)兩個(gè)信號走同一根電纜是否可行？  目前出現的狀況是輸出模塊沒(méi)使用，一使用整個(gè)PLC的信號就掛了，要斷電重啟，且模擬輸出模塊不能用。
          請教各位大神��！
無(wú)良��！
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1樓  發(fā)表于: 2020-03-24 15:18
端點(diǎn)是否要設置電流或者電壓模式，我用西門(mén)子好像沒(méi)有其他要注意的了
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