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 <title><![CDATA[求助各位大师：]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1646605.html]]></link>
 <description><![CDATA[Latest 50 replies of 求助各位大师：]]></description>
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 <description><![CDATA[工控人家园]]></description>
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 <description><![CDATA[最简单的方法就是，一个RS-232C转RS-485的转接头，再用一个DB9的串口线，只用3脚和8脚。曾经用这种方式自制的S7-200的编程线，只是通讯不是很稳定。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1646605#1963079.html]]></link>
 <author><![CDATA[michael.guan]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Fri, 13 Apr 2018 08:40:00 +0000]]></pubdate>
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 <description><![CDATA[谢谢了试一下：]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1646605#1958367.html]]></link>
 <author><![CDATA[浙北自动]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Tue, 20 Mar 2018 08:20:45 +0000]]></pubdate>
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 <description><![CDATA[照图，焊几个电阻]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1646605#1958303.html]]></link>
 <author><![CDATA[六个字的名字]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Tue, 20 Mar 2018 05:11:37 +0000]]></pubdate>
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