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 <title><![CDATA[请教西门子上升沿和下降沿的边沿存储位问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1668884.html]]></link>
 <description><![CDATA[Latest 50 replies of 请教西门子上升沿和下降沿的边沿存储位问题]]></description>
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 <description><![CDATA[[s:28]&nbsp;&nbsp;[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1668884#2053324.html]]></link>
 <author><![CDATA[十月几川]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 16 Jun 2019 14:44:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[原则上是不要重复的，除非你能保证不同时调用。这个位就是记录上个循环的状态的，如果被重复使用，就无法保证正确判断边沿。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1668884#2053305.html]]></link>
 <author><![CDATA[sjbandmm]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 16 Jun 2019 13:39:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有人知道的吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1668884#2053273.html]]></link>
 <author><![CDATA[陈仙子915]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 16 Jun 2019 10:54:37 +0000]]></pubdate>
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