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 <title><![CDATA[编程请教]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203.html]]></link>
 <description><![CDATA[Latest 50 replies of 编程请教]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢提供信息]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1414543.html]]></link>
 <author><![CDATA[niuxj1620]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 28 Feb 2013 11:56:31 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢&nbsp;&nbsp; 明白了&nbsp;&nbsp;谢谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1413988.html]]></link>
 <author><![CDATA[baiqrmai]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 26 Feb 2013 09:56:03 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[不用管]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1413615.html]]></link>
 <author><![CDATA[sanlihu]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 25 Feb 2013 06:10:57 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[你可以无视网络编号，只要记住PLC的程序扫描永远遵循自上而下、自左而右的原则]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1413175.html]]></link>
 <author><![CDATA[sjm213]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 13:36:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[那plc程序是怎么走的呢&nbsp;&nbsp;&nbsp;&nbsp;先1后2&nbsp;&nbsp;还是同时啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1413109.html]]></link>
 <author><![CDATA[baiqrmai]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 11:14:35 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[代表一个电气回路……如果你有看过电气原理图的话，那很明显，A，B，C，D，E……不就是代表一个一个电气回路，也就是Network么。

Good Luck~]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1412917.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 02:07:30 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[为什么要有1和2呢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1412910.html]]></link>
 <author><![CDATA[baiqrmai]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Feb 2013 01:40:34 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[个人理解为一个线圈]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1420203#1412766.html]]></link>
 <author><![CDATA[hblovetian]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 22 Feb 2013 12:53:12 +0000]]></pubdate>
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