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 <title><![CDATA[PLC测速，测距怎么实现！]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648.html]]></link>
 <description><![CDATA[Latest 50 replies of PLC测速，测距怎么实现！]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用编码器和高速计数器啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#890636.html]]></link>
 <author><![CDATA[我的plc]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 25 Oct 2010 14:18:19 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[上网找有关PLC 测速的仪器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#890572.html]]></link>
 <author><![CDATA[a441298512]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 25 Oct 2010 13:21:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加编码器,或测速轮,利用PLC高速记数就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#888965.html]]></link>
 <author><![CDATA[mfjsx]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Oct 2010 07:11:38 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用脉冲呀，可以测速也可以测距离。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#887469.html]]></link>
 <author><![CDATA[shuangfeng_5]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 21 Oct 2010 02:34:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[SPD或高速计数定时中断都可以吧!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#887410.html]]></link>
 <author><![CDATA[centworld]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 21 Oct 2010 01:39:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果是三菱的PLC
测速 采用 SPD指令
测距 采用 高速计数指令，如OUT C235 K999999]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-82648#887301.html]]></link>
 <author><![CDATA[fjqz00]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 20 Oct 2010 17:16:38 +0000]]></pubdate>
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