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 <title><![CDATA[关于s7-200CN高速计数器的脉冲密度问题]]></title>
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 <description><![CDATA[Latest 50 replies of 关于s7-200CN高速计数器的脉冲密度问题]]></description>
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 <description><![CDATA[其实三菱的PLC也可以这样做的，调用50MS的定时中断]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64395#790205.html]]></link>
 <author><![CDATA[908914819]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 21 May 2010 09:11:14 +0000]]></pubdate>
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 <description><![CDATA[建立定时中断，一般我做的话：会采用50mS的高速计数定时，然后将采集的数×20后，即可得到脉冲密度 个/S]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-64395#789129.html]]></link>
 <author><![CDATA[bhqt]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 20 May 2010 01:52:45 +0000]]></pubdate>
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