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 <title><![CDATA[请师傅们帮忙、怎么用PLC测电机转速]]></title>
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 <description><![CDATA[Latest 50 replies of 请师傅们帮忙、怎么用PLC测电机转速]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <title><![CDATA[]]></title>
 <description><![CDATA[在电机的轴端装一个有很多齿的盘，然后用高速计算器计数，在除以时间就可以实现的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#1042333.html]]></link>
 <author><![CDATA[salehelmet]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Sat, 14 May 2011 12:55:26 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[在马达轴端做个码盘，可以用高速光电开关采集信号给PLC，然后在PLC中用高数计数就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#1041640.html]]></link>
 <author><![CDATA[葳薷水杯]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Fri, 13 May 2011 14:27:59 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[在电机转的轴端安装一个编码器，在程序里设置好习惯计数规则测定转数即可]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#1041045.html]]></link>
 <author><![CDATA[fairland]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Fri, 13 May 2011 02:02:01 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[也给我发个]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#1001213.html]]></link>
 <author><![CDATA[dzgqq]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Sun, 27 Mar 2011 07:46:18 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是要实时跟踪吗｜？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#1000804.html]]></link>
 <author><![CDATA[yangyuhua]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Sat, 26 Mar 2011 14:42:02 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[做个转盘,然后上面均匀分布几个反光点,用光电开关读点数,]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#997773.html]]></link>
 <author><![CDATA[akang8612]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Mar 2011 01:09:06 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用旋转编码器+PRV2（883）]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#997543.html]]></link>
 <author><![CDATA[hlq_0815]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 Mar 2011 12:45:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[做个码盘吧，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#997451.html]]></link>
 <author><![CDATA[庞树恒]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 Mar 2011 11:38:40 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用接近开关可能响应度不够，当然如果你找到响应度够的就可以。PLC中用高速计数器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-99556#996881.html]]></link>
 <author><![CDATA[hxl202319]]></author>
 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Tue, 22 Mar 2011 00:30:48 +0000]]></pubdate>
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