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 <title><![CDATA[新人求助一个问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139.html]]></link>
 <description><![CDATA[Latest 50 replies of 新人求助一个问题]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[检查外部接线是否真确，表面看，应该是外部线路串电了，拆除那些没给信号，灯就亮的部分，主要是看哪里传过来的干扰电源]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1437851.html]]></link>
 <author><![CDATA[netliuhao]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 01 May 2013 14:43:38 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[外围线路的问题。1M,2M和M没连接。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1437703.html]]></link>
 <author><![CDATA[金玉峰]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 01 May 2013 04:23:29 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[接线的问题吧 查查线路在说]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1437130.html]]></link>
 <author><![CDATA[feigao2046]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 29 Apr 2013 01:37:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[当按钮按下时，测试该端子电压。
如果没有查线路，如果有查plc本体。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1437122.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 29 Apr 2013 01:24:58 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我也觉得是接线的问题。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1436962.html]]></link>
 <author><![CDATA[有你更精彩]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 28 Apr 2013 10:53:45 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[估计是接线有问题！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1436461.html]]></link>
 <author><![CDATA[mhbxfys]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 27 Apr 2013 06:01:25 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[信号接线出现了断路和短路了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1426139#1436454.html]]></link>
 <author><![CDATA[guochunyi]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 27 Apr 2013 05:37:58 +0000]]></pubdate>
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