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 <title><![CDATA[在300和200加一个485设备通讯问题&nbsp;& ..]]></title>
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 <description><![CDATA[Latest 50 replies of 在300和200加一个485设备通讯问题&nbsp;& ..]]></description>
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 <description><![CDATA[学习一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1439918#1497366.html]]></link>
 <author><![CDATA[mercury]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 16 Oct 2013 05:13:22 +0000]]></pubdate>
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 <description><![CDATA[距离有点远必须要加一个延长器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1439918#1496910.html]]></link>
 <author><![CDATA[xylkun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 15 Oct 2013 02:10:07 +0000]]></pubdate>
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 <description><![CDATA[是西门子中继器吗，50米之内应该没问题，终端电阻加了没有？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1439918#1496906.html]]></link>
 <author><![CDATA[beichen]]></author>
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 <pubdate><![CDATA[Tue, 15 Oct 2013 02:04:36 +0000]]></pubdate>
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