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 <title><![CDATA[高速计数器的问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198.html]]></link>
 <description><![CDATA[Latest 50 replies of 高速计数器的问题]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用SIEMENS S7系列应该好解决]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#533424.html]]></link>
 <author><![CDATA[suuy79]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 May 2009 16:10:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用Z相来复位的情况下,最好做多一路保护程式,我碰到过不止一回,出现Z脉冲有时抓不到的情况,而且在日本原装进口机上也发现过同样的保护措施,如在Z信号采集应用上,OR个延时或限位信号做保护]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#532952.html]]></link>
 <author><![CDATA[张平全]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 May 2009 08:54:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[了解了！！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#531936.html]]></link>
 <author><![CDATA[show79]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 May 2009 08:55:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我昨天碰到了这个问题，没有解决，只好用了个光电开关来代替编码器了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#488844.html]]></link>
 <author><![CDATA[sonlite]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Apr 2009 13:52:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[了解，我还没用过高速计数。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#488415.html]]></link>
 <author><![CDATA[gaoren]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Apr 2009 05:52:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢！ [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#482880.html]]></link>
 <author><![CDATA[卓发智能]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 08 Apr 2009 05:15:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[恩&nbsp;&nbsp;可以的编程手册上有具体接线方法 楼上说的差不多 不过不同型号的PLC可能不一样 最好查一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#480921.html]]></link>
 <author><![CDATA[shuaigeshi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 06 Apr 2009 01:45:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用252和254时的输入一样，x0为A相，x1为B相，x2为复位端，用254时X6为计数是与否选择。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-34198#480854.html]]></link>
 <author><![CDATA[工控玩家]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 05 Apr 2009 23:42:56 +0000]]></pubdate>
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