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 <title><![CDATA[西门子PLC内部软元件有哪些]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780.html]]></link>
 <description><![CDATA[Latest 50 replies of 西门子PLC内部软元件有哪些]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[好好去西门子官网看看，里面有视频教学，还有很多资料手册书籍]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1489105.html]]></link>
 <author><![CDATA[twbnh]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 22 Sep 2013 10:38:12 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[好好去西门子官网看看，里面有视频教学，还有很多资料手册书籍]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1485372.html]]></link>
 <author><![CDATA[stincen]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 12 Sep 2013 02:16:08 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我买了一本S300/400的书但是里面没有内部元件说明，只有例子和指令的应用，真烦，三菱的都有这些说明，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1485088.html]]></link>
 <author><![CDATA[何工控学]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 11 Sep 2013 04:25:56 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[S7-200:
输入I；输出Q；位M；记数C；定时T；变量V；...........]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1484946.html]]></link>
 <author><![CDATA[sanlihu]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 10 Sep 2013 22:49:59 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼主要去买书看，一楼说的对，200PLC常用的M区和V区，300/400常用的M区和DB块。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1484907.html]]></link>
 <author><![CDATA[renjundong]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 10 Sep 2013 14:59:14 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[小哥，你的路还很长&nbsp;&nbsp;一两句说不完&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 你说怎么弄？？？？？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1436780#1484890.html]]></link>
 <author><![CDATA[haipingyuer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 10 Sep 2013 13:59:41 +0000]]></pubdate>
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