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 <title><![CDATA[这个有什么用途,怎么用]]></title>
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 <description><![CDATA[Latest 50 replies of 这个有什么用途,怎么用]]></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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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[s:26]&nbsp;&nbsp;[s:26]&nbsp;&nbsp;[s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#494137.html]]></link>
 <author><![CDATA[anl1984]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 18 Apr 2009 14:29:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#494039.html]]></link>
 <author><![CDATA[huxupin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 18 Apr 2009 13:17:56 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意8楼的说法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#430508.html]]></link>
 <author><![CDATA[zqian]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 Feb 2009 12:13:25 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[有点像安全继电器，有点模糊看得不清楚]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#430451.html]]></link>
 <author><![CDATA[275991874]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 Feb 2009 11:21:42 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习中，谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#430274.html]]></link>
 <author><![CDATA[dianchisun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 Feb 2009 07:16:37 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[Please readed operation manual before user it .]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#430211.html]]></link>
 <author><![CDATA[wym5952]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 Feb 2009 05:22:19 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了, [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#430209.html]]></link>
 <author><![CDATA[yangyajiang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 Feb 2009 05:01:40 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[应该是接接近开，+-为接近开关的+-]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429536.html]]></link>
 <author><![CDATA[蓝色闪电]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 Feb 2009 02:27:20 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;学习学习 [s:43]&nbsp;&nbsp;[s:43]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429502.html]]></link>
 <author><![CDATA[hszyz]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 Feb 2009 01:44:06 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[左边两路输入,右边两路输出]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429442.html]]></link>
 <author><![CDATA[yygy374278]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 Feb 2009 00:00:32 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我也没见过&nbsp;&nbsp;&nbsp;&nbsp;学习学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429421.html]]></link>
 <author><![CDATA[ggvv0010]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Feb 2009 18:10:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:17]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429343.html]]></link>
 <author><![CDATA[liuhanqi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Feb 2009 14:44:27 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[没见过，学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429288.html]]></link>
 <author><![CDATA[刘向阳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Feb 2009 12:55:05 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[很少看到.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429253.html]]></link>
 <author><![CDATA[优进]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Feb 2009 12:05:50 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意8楼的说法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#429178.html]]></link>
 <author><![CDATA[zhangshichao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Feb 2009 08:54:40 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第5楼ydc820于2008-12-30 23:47发表的&nbsp;&nbsp;:

两路继电器输出我知道,可是前面两路输入+ -是接什么信号进去的?[/quote]

至少要知道该元件的型号~~

或者侧面的接线图~~

一般接线方法如图：
 [attachment=17352] 

不知道楼主所指的“输入+ -”是？？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#402690.html]]></link>
 <author><![CDATA[sjm213]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Dec 2008 09:58:00 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[没用到，不清楚。
也请教了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#402668.html]]></link>
 <author><![CDATA[plcxx]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Dec 2008 09:03:12 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第3楼sjm213于2008-12-30 08:23发表的&nbsp;&nbsp;:
侧面有接线图，工作原理参考中间继电器[/quote]
两路继电器输出我知道,可是前面两路输入+ -是接什么信号进去的?]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#402064.html]]></link>
 <author><![CDATA[ydc820]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Dec 2008 15:47:16 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[没见过，学习学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#402047.html]]></link>
 <author><![CDATA[pingwuhui83]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Dec 2008 15:11:42 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[侧面有接线图，工作原理参考中间继电器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#401214.html]]></link>
 <author><![CDATA[sjm213]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Dec 2008 00:23:36 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意2楼]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#401157.html]]></link>
 <author><![CDATA[竹风凉]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 29 Dec 2008 18:14:11 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[俗称隔离放大器，用于信号控制]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-27875#401079.html]]></link>
 <author><![CDATA[pujiangang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 29 Dec 2008 15:30:42 +0000]]></pubdate>
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