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 <title><![CDATA[S7-300 321 输入模块&nbsp;&nbsp;6es7 32 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107066.html]]></link>
 <description><![CDATA[Latest 50 replies of S7-300 321 输入模块&nbsp;&nbsp;6es7 32 ..]]></description>
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 <description><![CDATA[25us&nbsp;&nbsp;相当于4k 的频率，是不是输入点频率 不超过4k 就能正常计数。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107066#1055831.html]]></link>
 <author><![CDATA[dfgrid]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 29 May 2011 14:35:42 +0000]]></pubdate>
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 <description><![CDATA[有专门接编码器的，如频率不高也行只是程序上没有此功能得自编程。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107066#1055210.html]]></link>
 <author><![CDATA[xinqinghao]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 29 May 2011 04:03:32 +0000]]></pubdate>
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 <title><![CDATA[Re:S7-300 321 输入模块&#160;&#160;6es7 321 1bh10-0aa0]]></title>
 <description><![CDATA[有点深奥]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107066#1054992.html]]></link>
 <author><![CDATA[caifangchun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 28 May 2011 23:40:19 +0000]]></pubdate>
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 <description><![CDATA[不可以.. [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107066#1054980.html]]></link>
 <author><![CDATA[青岛瑞麒]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 28 May 2011 23:17:15 +0000]]></pubdate>
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