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 <title><![CDATA[求助：三菱FX3U&nbsp;&nbsp;高速记数器的 ..]]></title>
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 <description><![CDATA[Latest 50 replies of 求助：三菱FX3U&nbsp;&nbsp;高速记数器的 ..]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <title><![CDATA[Re:PLC计数和编码器Z相问题。。。]]></title>
 <description><![CDATA[请帮忙看看，程序如图，请问1;编码器有A相，B相,Z相,Z相是编码器转一周发一个脉冲，我的编码器怎么一直是导通的呀，我Z相接在x004上面的，X004灯一直是亮的（看程序）问题2：我用C251高速计数器，对应M8251继电器，(编程手册上说，M8251导通/断开可以改变c251的计数方向，是增/减）我接通和不接通M8251都是一样的(C251计数 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1103461.html]]></link>
 <author><![CDATA[quanyuan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Aug 2011 22:26:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢，搞好了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102952.html]]></link>
 <author><![CDATA[quanyuan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Aug 2011 03:40:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[程序中运用的双相计数器号不对。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102907.html]]></link>
 <author><![CDATA[xubaolin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Aug 2011 02:53:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[C251~C255才是双相双计数的

你的双相编码器输出的是相差90度的A,B相脉冲，应该用双相双计数器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102842.html]]></link>
 <author><![CDATA[sandy_love]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Aug 2011 00:47:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[怎么没有人回答啊，请帮忙解释一下啊，先谢谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102828.html]]></link>
 <author><![CDATA[quanyuan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Aug 2011 00:12:48 +0000]]></pubdate>
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 <description><![CDATA[这个C246就是单相双输入啊 [attachment=67845]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102815.html]]></link>
 <author><![CDATA[quanyuan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Aug 2011 23:39:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没遇到过。帮你顶]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102799.html]]></link>
 <author><![CDATA[ldq_yang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Aug 2011 23:28:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是不是我的程序有问题啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115761#1102798.html]]></link>
 <author><![CDATA[quanyuan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Aug 2011 23:25:34 +0000]]></pubdate>
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