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 <title><![CDATA[求助]]></title>
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 <description><![CDATA[Latest 50 replies of 求助]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[状态无所谓的了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#857300.html]]></link>
 <author><![CDATA[zlx137730]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 31 Aug 2010 11:13:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[状态无所谓的了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#843191.html]]></link>
 <author><![CDATA[虚心求教]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 06 Aug 2010 14:22:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个无所谓的，看你的想法了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841950.html]]></link>
 <author><![CDATA[195094461]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 04 Aug 2010 12:26:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[觉得还是用常开好点。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841563.html]]></link>
 <author><![CDATA[汇荣铝业]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 03 Aug 2010 23:21:50 +0000]]></pubdate>
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 <description><![CDATA[使用常开还是常闭，根据所实现的功能、和编程方式定。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841502.html]]></link>
 <author><![CDATA[qlin]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 03 Aug 2010 14:51:47 +0000]]></pubdate>
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 <description><![CDATA[有保護作用,如開關損壞時,也是常闭]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841397.html]]></link>
 <author><![CDATA[jonnyhsieh]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 03 Aug 2010 12:19:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看习惯了，随便怎么都行，只要液位控制器有信号]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841166.html]]></link>
 <author><![CDATA[zl6079]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 03 Aug 2010 05:34:04 +0000]]></pubdate>
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 <description><![CDATA[水位传感器有常开和常闭一共3根线，我觉得是设计的人的接线问题。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#841036.html]]></link>
 <author><![CDATA[houjunli12]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 03 Aug 2010 01:13:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[主要取决于你的传感器吧，因为你的传感器有常开型和常闭型！！
其次，就是你设计程序的问题了，你可以想想，用常开的好还是常闭的好？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-72266#840989.html]]></link>
 <author><![CDATA[紫莫语]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 02 Aug 2010 23:51:38 +0000]]></pubdate>
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