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 <title><![CDATA[Re:变频器SG+&#160;&#160; SG-怎么和FX3u-485-BD]]></title>
 <description><![CDATA[485的四线 是全双工，也就是&#160;&#160;发送与接收是 分开的 ，发送的专门发送，接收的专门接收。（FX3U-485BD&#160;&#160;&#160;&#160; SDA 为发送+&#160;&#160; SDB为发送-&#160;&#160;&#160;&#160;RDA为接收+&#160;&#160;&#160;&#160;RDB为接收-&#160;&#160;）。两线制为半双工，也就是 ，这两条线不但负责发送，而且 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472124#1619597.html]]></link>
 <author><![CDATA[iujfang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 15 Nov 2014 09:34:59 +0000]]></pubdate>
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 <description><![CDATA[485两线制接法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472124#1619340.html]]></link>
 <author><![CDATA[zz2679493]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 14 Nov 2014 08:51:28 +0000]]></pubdate>
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 <description><![CDATA[SDA和RDA短接&nbsp;&nbsp;接SG+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SDB和RDB短接&nbsp;&nbsp;接 SG-]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1472124#1619332.html]]></link>
 <author><![CDATA[iujfang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 14 Nov 2014 08:45:58 +0000]]></pubdate>
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