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 <title><![CDATA[关于plc]]></title>
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 <description><![CDATA[Latest 50 replies of 关于plc]]></description>
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 <description><![CDATA[谢谢大家了！ [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64642#789928.html]]></link>
 <author><![CDATA[xinru]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 21 May 2010 02:47:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[X0接通就相当于一个开关的作用...驱动内部电路..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64642#789901.html]]></link>
 <author><![CDATA[pretco123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 21 May 2010 02:26:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[三菱的PLC内部已近有电源，只有短接就可以]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64642#789889.html]]></link>
 <author><![CDATA[carrful]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 21 May 2010 02:16:40 +0000]]></pubdate>
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 <description><![CDATA[plc中的com端是公共端与x1,x2,x3等输入信号形成回路。输出端也是同样的道理例如y0-com0&nbsp;&nbsp;,y1-com1.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64642#789857.html]]></link>
 <author><![CDATA[庞金玉]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 21 May 2010 01:51:50 +0000]]></pubdate>
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