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 <title><![CDATA[菜鸟求助，s7-200问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948.html]]></link>
 <description><![CDATA[Latest 50 replies of 菜鸟求助，s7-200问题]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习中]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#933110.html]]></link>
 <author><![CDATA[yjitvtk]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 17 Dec 2010 04:53:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[收到 非常感谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#933059.html]]></link>
 <author><![CDATA[qdyff]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 17 Dec 2010 03:31:53 +0000]]></pubdate>
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 <description><![CDATA[检查电源吧，好像没有构成回路！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#932846.html]]></link>
 <author><![CDATA[qiaoqiaodeni]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 16 Dec 2010 15:22:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意楼上个观点]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#932301.html]]></link>
 <author><![CDATA[zsb2010]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 16 Dec 2010 04:12:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不知楼主的PLC是晶体管输出的还是继电器输出的，如果是继电器输出的有可能是2L公共端断路引起的，如果是晶体管输出的有可能是测量或接线问题，同意版主的观点，正确连接电源，直接驱动外围电路试试！ [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#932097.html]]></link>
 <author><![CDATA[回忆依然最美]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 16 Dec 2010 00:29:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果确认是通了，则是L1侧的输出存在断路了，可以打开自己更换输出（晶体管/继电器），大多是输出级原因。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#932096.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 16 Dec 2010 00:28:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[可能PLC的输出点坏了。你可以接上电源，直接驱动外围电路看看。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#932091.html]]></link>
 <author><![CDATA[guochunyi]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 16 Dec 2010 00:18:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没人理我？ [s:32]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90948#931982.html]]></link>
 <author><![CDATA[qdyff]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 15 Dec 2010 14:05:06 +0000]]></pubdate>
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