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 <title><![CDATA[请问这是什么西门子指令？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1566963.html]]></link>
 <description><![CDATA[Latest 50 replies of 请问这是什么西门子指令？]]></description>
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 <description><![CDATA[就是触点闭合时动作不输出，当触点断开瞬间时，输出动作]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1566963#1866754.html]]></link>
 <author><![CDATA[懂一点点]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 27 Feb 2017 03:05:39 +0000]]></pubdate>
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 <description><![CDATA[谢谢！
什么是；负跳变触点？-------是下降指令沿指令。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1566963#1866748.html]]></link>
 <author><![CDATA[泰山之石]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 27 Feb 2017 02:43:10 +0000]]></pubdate>
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 <description><![CDATA[[s:28]&nbsp;&nbsp;[s:28]&nbsp;&nbsp;[s:28] 
左边第二栏，指令——位逻辑——找到|N|，鼠标放那别动]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1566963#1866747.html]]></link>
 <author><![CDATA[hardy_6817]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 27 Feb 2017 02:39:08 +0000]]></pubdate>
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