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 <title><![CDATA[关于脉冲发送]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670.html]]></link>
 <description><![CDATA[Latest 50 replies of 关于脉冲发送]]></description>
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 <description><![CDATA[[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#432250.html]]></link>
 <author><![CDATA[yun342703002]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 13 Feb 2009 13:58:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#432181.html]]></link>
 <author><![CDATA[zhangshichao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 13 Feb 2009 13:01:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[好，学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#390814.html]]></link>
 <author><![CDATA[laiguo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 19 Dec 2008 02:41:28 +0000]]></pubdate>
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 <description><![CDATA[谢谢了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#384283.html]]></link>
 <author><![CDATA[海红]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 13 Dec 2008 04:27:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢了！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#381812.html]]></link>
 <author><![CDATA[wzhr036]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 11 Dec 2008 00:14:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习了 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#381438.html]]></link>
 <author><![CDATA[如萍]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Dec 2008 12:31:44 +0000]]></pubdate>
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 <description><![CDATA[[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#381170.html]]></link>
 <author><![CDATA[jmaxj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Dec 2008 09:12:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC能脉冲输出两个波形，CW和CCW，CW超前于CCW时定义为正转，反之反转。这时脉冲串控制；
加方向时就一项脉冲输出，另一项变为高低电平，脉迟始终输出，加上高电平为就是正转，低电平为反。
 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#381157.html]]></link>
 <author><![CDATA[peaceful]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Dec 2008 08:57:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你好！那你用过LG的PLC吗？能负指点下比如：PLSDST指令的用法或者PLSJOG先谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#380103.html]]></link>
 <author><![CDATA[wzhr036]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 09 Dec 2008 06:55:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我的感觉就是一种需要两路脉冲控制一个伺服的正反转

有时是一路脉冲加一个方向控制

脉冲加方向比较好,配合DRVI指令使用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-26670#380091.html]]></link>
 <author><![CDATA[YMMFA]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 09 Dec 2008 06:43:48 +0000]]></pubdate>
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