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 <description><![CDATA[如何用s7-200对一分钟内接近开关产生脉冲进行比较]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1541186#1763646.html]]></link>
 <author><![CDATA[ydszyc888]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2016 02:11:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[感谢分享]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1541186#1759128.html]]></link>
 <author><![CDATA[往事如风]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 05 Apr 2016 07:08:21 +0000]]></pubdate>
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 <description><![CDATA[谢谢你了 。。。[s:39][s:39]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1541186#1758241.html]]></link>
 <author><![CDATA[gyy27957]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 02 Apr 2016 07:28:07 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[attachment=145957] 我这里有一些资料你看一下，我也在用300的PLC做毕业设计，有问题可以联系我
其实挺简单的，不要自学，找个老师多问问就明白了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1541186#1757689.html]]></link>
 <author><![CDATA[renzhiwei]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 31 Mar 2016 09:45:45 +0000]]></pubdate>
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