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 <title><![CDATA[霍尔传感器测速可以直接接到S7-300 上么]]></title>
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 <description><![CDATA[Latest 50 replies of 霍尔传感器测速可以直接接到S7-300 上么]]></description>
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 <description><![CDATA[学习学习中]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90862#933113.html]]></link>
 <author><![CDATA[yjitvtk]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 17 Dec 2010 04:55:34 +0000]]></pubdate>
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 <description><![CDATA[加转换模块 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90862#931929.html]]></link>
 <author><![CDATA[zlyok]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 15 Dec 2010 13:38:16 +0000]]></pubdate>
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 <description><![CDATA[具体问题具体对待。需要看你测多少转的转速，一般普通2；4极电机转速使用普通“I”模块就行。至于传感器类：霍尔；接进开关都行。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90862#931606.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 15 Dec 2010 08:55:06 +0000]]></pubdate>
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