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 <title><![CDATA[头痛！！！关于计数的问题？]]></title>
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 <description><![CDATA[Latest 50 replies of 头痛！！！关于计数的问题？]]></description>
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 <description><![CDATA[用PLC的高速计数器或者编码器计数。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#744020.html]]></link>
 <author><![CDATA[cjcheng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 18 Mar 2010 06:42:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[多谢各位费心]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#742859.html]]></link>
 <author><![CDATA[tanghanshui]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 16 Mar 2010 11:45:22 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用高速记数！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#742318.html]]></link>
 <author><![CDATA[圣殿骑士团]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Mar 2010 14:30:17 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用OMRON编码器呗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#742315.html]]></link>
 <author><![CDATA[天涯孤客]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Mar 2010 14:26:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[采用编码器吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#742303.html]]></link>
 <author><![CDATA[laz7906]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Mar 2010 14:12:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用什么控制的呀，PLC有高速计数器可以用，如果不是买个单独的高速计数器也可以，实在是速度太快，就用模拟的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57705#742238.html]]></link>
 <author><![CDATA[胡骄阳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Mar 2010 13:24:32 +0000]]></pubdate>
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