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 <title><![CDATA[PLC计数报警器安装方法]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122.html]]></link>
 <description><![CDATA[Latest 50 replies of PLC计数报警器安装方法]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[可以先试下蜂鸣器是否正常，需要怎样的输入，在来改程序。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1043375.html]]></link>
 <author><![CDATA[东雨林]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 May 2011 15:33:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[首先确认，蜂鸣器是好的；PLC的Y3的COM已经接上相应的电源，再就是你的蜂鸣器不应该是短音的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1039231.html]]></link>
 <author><![CDATA[vancouva]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 May 2011 01:05:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[除了上面的理由，还有你的蜂鸣器要是长音的，不要有时基。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1039225.html]]></link>
 <author><![CDATA[yyhexf]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 11 May 2011 00:51:41 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[正负极方向？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1039100.html]]></link>
 <author><![CDATA[ukqbso]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 May 2011 14:15:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没理由不响的啊，蜂鸣器坏了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1039095.html]]></link>
 <author><![CDATA[ukqbso]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 May 2011 14:13:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是不是要安装一个接收到一个输出信号而让蜂鸣器响（约10秒）的一个辅助装置呢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-105122#1039083.html]]></link>
 <author><![CDATA[lixiaoyun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 May 2011 14:06:55 +0000]]></pubdate>
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