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 <title><![CDATA[S7-200,PLC问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029.html]]></link>
 <description><![CDATA[Latest 50 replies of S7-200,PLC问题]]></description>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <description><![CDATA[这个就是扩展模块的连接线有问题吗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1064334.html]]></link>
 <author><![CDATA[lishang29]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 08 Jun 2011 13:34:06 +0000]]></pubdate>
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 <description><![CDATA[接触不好混了口令性很大，还有你可以将那2个I点的线拆除再监控看看]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1064274.html]]></link>
 <author><![CDATA[c陈建国]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 08 Jun 2011 12:47:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[典型的接触不良]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1063548.html]]></link>
 <author><![CDATA[liuhuaxing]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Jun 2011 13:50:12 +0000]]></pubdate>
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 <description><![CDATA[补充说明，在排查中，虽然启动和急停无效但是监控中显示对应的点还是有效的，启动和停止的点在扩展模块上，会不会是模块连接线的问题呢?]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1063400.html]]></link>
 <author><![CDATA[lishang29]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Jun 2011 11:22:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意一楼说法，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1062938.html]]></link>
 <author><![CDATA[taotao198906]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Jun 2011 00:37:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[查问题应遵循先软后硬的原则 ，最好把程序上传，看看程序上编写得是否有缺陷。然后再查一下是不是硬件的问题。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-108029#1062681.html]]></link>
 <author><![CDATA[zz680217]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 06 Jun 2011 12:08:49 +0000]]></pubdate>
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