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 <description><![CDATA[Latest 50 replies of 求教s7200与danfoss变频器RS485通信说明与 ..]]></description>
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 <description><![CDATA[haoa [s:21]&nbsp;&nbsp;[s:21]&nbsp;&nbsp;[s:21]]]></description>
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 <description><![CDATA[调用MODBUS通信库实现,具体用法可参考软件在线帮助,里面有很详细的帮助说明,调试时注意看库反馈回来的故障码,再通过在线帮助查找原因,一般都不会有太大问题的.但丹佛斯的变频好像并不是每一个机型都支持MODBUS,建意选型时尽量选取支持MODBUS的,不然通信程序就得自己一步一步来写了,这就有可能造成你程序编写与调试时间成倍 ..]]></description>
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