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 <title><![CDATA[请教PID指令]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418976.html]]></link>
 <description><![CDATA[Latest 50 replies of 请教PID指令]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <description><![CDATA[PID是一个大学问，不是三言两语能讲清楚。你还是先研究一下，高等数学的导数、微积分吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418976#1405755.html]]></link>
 <author><![CDATA[hlq_0815]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Jan 2013 02:14:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个数字量到底是个什么东西？值应该是个什么？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418976#1405715.html]]></link>
 <author><![CDATA[zhouhanbing]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Jan 2013 00:55:01 +0000]]></pubdate>
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 <description><![CDATA[这是一个数字量，要转化成相应的模拟量去控制整个过程，以达到你的设定值。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418976#1405657.html]]></link>
 <author><![CDATA[秋后一点水]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 Jan 2013 15:29:12 +0000]]></pubdate>
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