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zc1111zc
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樓主  發(fā)表于: 2016-04-18 10:57
淘寶買(mǎi)了ＰＬＣ的４８５通信板，插好，準備連變頻器的候暈了，怎么也找不到４８５口，請問(wèn)是不是有的版本的變頻器沒(méi)有４８５口？還是用其他接口替代了，需要從其他的接口一根根銅絲接線(xiàn)來(lái)實(shí)現４８５功能？

還有，說(shuō)明書(shū)上的ＰＵ接口，是不是就是網(wǎng)線(xiàn)接口？
dengyan
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1樓  發(fā)表于: 2016-04-27 08:57
PU口就是RS-485接口

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