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 <title><![CDATA[如何用接近开关检测转动，PLC控制电磁阀换 ..]]></title>
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 <description><![CDATA[Latest 50 replies of 如何用接近开关检测转动，PLC控制电磁阀换 ..]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[太简单了用速度检测指令然后再比较，看说明书就知道了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#534137.html]]></link>
 <author><![CDATA[plc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 29 May 2009 12:57:19 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我劝你多看看书]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#534108.html]]></link>
 <author><![CDATA[guyue]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 29 May 2009 12:32:48 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[看看编程手册，这个程序很好写的。自己做总比看别人的好吧。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#525310.html]]></link>
 <author><![CDATA[雪花飘飘]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 May 2009 11:03:00 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢，原理知道，就是不知道程序如何做]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#525106.html]]></link>
 <author><![CDATA[hszhao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 May 2009 06:56:45 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意1楼的有道理! [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#525068.html]]></link>
 <author><![CDATA[hszyz]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 May 2009 06:29:47 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[1楼的有道理!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#524892.html]]></link>
 <author><![CDATA[my_omron]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 May 2009 02:36:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用一个比较指令,与时间比较,当超过多长时间,没有脉冲输入,就说明电机处于停止状态,
或用计数与时间结合,在某个单位时间内少于多少个脉冲就说明电机没转动,]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-37581#524871.html]]></link>
 <author><![CDATA[xujingshu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 May 2009 02:14:05 +0000]]></pubdate>
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