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 <title><![CDATA[谁能帮我编个测距程序]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483.html]]></link>
 <description><![CDATA[Latest 50 replies of 谁能帮我编个测距程序]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[一楼回答的很精辟啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1481118.html]]></link>
 <author><![CDATA[谦少爱你]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 30 Aug 2013 12:57:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是的,一楼说的很精辟,学习了!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1481094.html]]></link>
 <author><![CDATA[雪清风]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 30 Aug 2013 11:39:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，敬礼！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1481009.html]]></link>
 <author><![CDATA[hucaishu]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 30 Aug 2013 07:24:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28][s:28][s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1480864.html]]></link>
 <author><![CDATA[houxiyong]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 30 Aug 2013 02:14:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1404256.html]]></link>
 <author><![CDATA[jihaibinn009]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 18 Jan 2013 17:20:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我们正用的，AB5000 ，devicenet，sick4000 ，读取距离数据，控制多道减速停止。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1403956.html]]></link>
 <author><![CDATA[乌龟船长]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 18 Jan 2013 03:56:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1403870.html]]></link>
 <author><![CDATA[longfei869]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 18 Jan 2013 01:44:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[1楼说的对]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1403854.html]]></link>
 <author><![CDATA[liuqiang1986]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 18 Jan 2013 01:12:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[其实 你这个不必要通过PLC的 
1.你这个 可以利用变频器的PID功能来实现你的控制要求，例如4MA时变频器是50HZ运行20MA时0HZ 运行 中间速度变化由变频器根据PID参数自动运算 ，
2.如果对调速不是要求很平滑的话可以直接把激光探头接到变频器的模拟量输入端子 直接控制变频器的速度 如果需要比例的话 可以利用增益来调节变频 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418483#1403793.html]]></link>
 <author><![CDATA[fuyuesong123]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 17 Jan 2013 14:21:55 +0000]]></pubdate>
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