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 <title><![CDATA[西门子300PLC PID控制反向处理]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1648051.html]]></link>
 <description><![CDATA[Latest 50 replies of 西门子300PLC PID控制反向处理]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢老师，我试下看看。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1648051#1974012.html]]></link>
 <author><![CDATA[chendaochun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 May 2018 07:38:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[P值设置为负值即可。

比如根据阀门开度控制室内压力恒定的例子，当压力低于设定值时，阀门关小。压力高于设定值时，阀门开大]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1648051#1972331.html]]></link>
 <author><![CDATA[哈哈镜]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 15 May 2018 07:07:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[怎么没有回答啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1648051#1967129.html]]></link>
 <author><![CDATA[chendaochun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 24 Apr 2018 03:31:04 +0000]]></pubdate>
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