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zhuls
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樓主  發(fā)表于: 2015-12-09 16:51
西門(mén)子S7-300PLC模擬量輸出模塊6ES7332-5HD01-0AB0 設定電流輸出，當輸出27648時(shí)，輸出電流為32ma,而不是20ma,把模塊斷電重啟后，恢復正常，輸出20ma,這是怎么回事呢？
wuwm_1974
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1樓  發(fā)表于: 2016-02-16 10:11
怎么測量的��？
輸出模塊做電流輸出時(shí)電阻不能超過(guò)500Ω，但也不能太小，會(huì )判定為短路的。

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