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 <title><![CDATA[8421拨码开关怎么使用]]></title>
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 <description><![CDATA[Latest 50 replies of 8421拨码开关怎么使用]]></description>
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 <description><![CDATA[DSW指定]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1292047.html]]></link>
 <author><![CDATA[xiaoyan88]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 Jun 2012 11:01:36 +0000]]></pubdate>
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 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1292045.html]]></link>
 <author><![CDATA[huxingtiandi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 21 Jun 2012 10:50:49 +0000]]></pubdate>
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 <description><![CDATA[直接接X0X1X2X3公共线接COM.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BIN K1X0 D0]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1292002.html]]></link>
 <author><![CDATA[木皮]]></author>
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 <pubdate><![CDATA[Thu, 21 Jun 2012 09:16:16 +0000]]></pubdate>
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 <description><![CDATA[学习了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1289776.html]]></link>
 <author><![CDATA[daviddavid]]></author>
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 <pubdate><![CDATA[Mon, 18 Jun 2012 01:35:19 +0000]]></pubdate>
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 <description><![CDATA[谢谢大家 我知道怎么弄了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1084116.html]]></link>
 <author><![CDATA[wsx681980]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 03 Jul 2011 15:49:17 +0000]]></pubdate>
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 <description><![CDATA[其实就是二进制输入到PLC的过程，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1084079.html]]></link>
 <author><![CDATA[xlqlh]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 03 Jul 2011 14:31:15 +0000]]></pubdate>
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 <description><![CDATA[首先必须说明，拨码开关是不能直接控制步进电机的，要步进驱动器，而要用拨码开关控制驱动器带动步进电机好象不可能
其实拨码开关的原理就象电阻的并联，数码8421依次对应1/8，1/4，1/2，1 的阻值，你拆开看看就清楚了，或者用万用表也可以测量出来]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1084067.html]]></link>
 <author><![CDATA[圆家人控工]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 03 Jul 2011 14:10:28 +0000]]></pubdate>
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 <description><![CDATA[是二进码，懂二进制就OK啦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112250#1084024.html]]></link>
 <author><![CDATA[xuzhfeng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 03 Jul 2011 12:46:32 +0000]]></pubdate>
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