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 <title><![CDATA[西门子PLC测转速问题,求真相!这个问题希望 ..]]></title>
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 <description><![CDATA[Latest 50 replies of 西门子PLC测转速问题,求真相!这个问题希望 ..]]></description>
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 <description><![CDATA[谢谢版主,我先看看]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#944553.html]]></link>
 <author><![CDATA[upoio11]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 29 Dec 2010 05:26:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[竟然上传了两次[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943654.html]]></link>
 <author><![CDATA[wsir123]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 28 Dec 2010 06:37:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看下这个能否帮到你
 [attachment=53203]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943513.html]]></link>
 <author><![CDATA[wsir123]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 28 Dec 2010 03:52:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[速度求法编程之一，待速度稳定后开始计数同时计时，当计满10个或100个时，看一下所用时间，求得速度]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943449.html]]></link>
 <author><![CDATA[xuyonjin]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 28 Dec 2010 02:22:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我知道是这样的啊,先采样周期,然后在中断,数据再传输出来,然后再采样,可是程序怎么写呢?]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943351.html]]></link>
 <author><![CDATA[upoio11]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 28 Dec 2010 00:11:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[正确选择高速计数器模式和plc对应的高速输入点，就可以看到你需要的数据了，然后在根据你想要显示的内容进行适当的运算处理。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943261.html]]></link>
 <author><![CDATA[wsir123]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 27 Dec 2010 14:34:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用高速计数器做脉冲计数，用定时中断将单位时间内捕获的脉冲数通过计算转换成转速即可！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-92322#943171.html]]></link>
 <author><![CDATA[回忆依然最美]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 27 Dec 2010 13:24:29 +0000]]></pubdate>
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