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 <title><![CDATA[请问这段300的程序该怎么理解？谢谢]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-45576.html]]></link>
 <description><![CDATA[Latest 50 replies of 请问这段300的程序该怎么理解？谢谢]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[好，谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-45576#627869.html]]></link>
 <author><![CDATA[slik]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 17 Sep 2009 13:03:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是一些初始化过程，我觉得先做到会用，在做到读懂。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-45576#627675.html]]></link>
 <author><![CDATA[deanhao]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 17 Sep 2009 09:22:07 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[SET&nbsp;&nbsp; 设置当前RLO 为1 
SAVE&nbsp;&nbsp;保存当前的RLO到BR位

一般不用去读取FB 41这样晦涩的代码，自控教材上的经典增量式PID公式就是FB41所参照的公式。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-45576#627671.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 17 Sep 2009 09:18:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[请高手指点一下。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-45576#627646.html]]></link>
 <author><![CDATA[lwj007]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 17 Sep 2009 08:52:21 +0000]]></pubdate>
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