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penzhenjian
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樓主  發(fā)表于: 2013-09-11 00:22
請問(wèn)各位高手，三菱PLC用RS485與三菱變頻器通訊的距離可以多遠?
xuyifu
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1樓  發(fā)表于: 2013-09-11 08:36
那要看你的通訊模塊了，如果是485BD板的距離就50M，如果用485ADP的話(huà)理論上是1500M，我用過(guò)工控機和多個(gè)智能水表通訊距離還超過(guò)了1500M。主要是通訊線(xiàn)的走線(xiàn)要避開(kāi)干擾源。
戰國七雄
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2樓  發(fā)表于: 2013-09-12 14:05
1500米沒(méi)有問(wèn)題！

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