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 <title><![CDATA[fx0n求助]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987.html]]></link>
 <description><![CDATA[Latest 50 replies of fx0n求助]]></description>
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 <description><![CDATA[没有X8的,你检查一下可能是你的COM端线掉了,你可以直接把COM的X10-X27分别连接一下试试有没信号指示,没有的话也可能是你的PLC硬件有问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#991768.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 15 Mar 2011 04:07:05 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PLC内部有断路的地方了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#991742.html]]></link>
 <author><![CDATA[dujiang100]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 15 Mar 2011 03:46:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直接在PLC上做x10—x27与com端子的短接试验，看输入到底有没反应，如没反应，plc坏了，有反应，你的线路有问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#991349.html]]></link>
 <author><![CDATA[detect]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 14 Mar 2011 13:05:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[应该是硬件的问题！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#990339.html]]></link>
 <author><![CDATA[ntsd2003]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Mar 2011 05:21:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[com端子和输入有24V电压。还有哪里的问题呢？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#986812.html]]></link>
 <author><![CDATA[1120795098]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Mar 2011 11:33:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看看内部的COM线是不是断了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#985719.html]]></link>
 <author><![CDATA[killking998]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 Mar 2011 02:05:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[在程序没有问题的情况下,分别用一短线碰触x10-x27各个端子还无信号应该是硬件的问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#985682.html]]></link>
 <author><![CDATA[万钧彩]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 Mar 2011 01:01:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[接在一起了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#985626.html]]></link>
 <author><![CDATA[1120795098]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 Mar 2011 23:00:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[COM有没有接在一起]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97987#985572.html]]></link>
 <author><![CDATA[高压电工]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 Mar 2011 14:44:37 +0000]]></pubdate>
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