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 <title><![CDATA[怎样用PLC控制温度呀]]></title>
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 <author><![CDATA[刘建勇]]></author>
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 <description><![CDATA[谁能告诉我ＰＩＤ参数如何定]]></description>
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 <description><![CDATA[[quote]引用第3楼玉龙于2008-03-17 19:22发表的&nbsp; :
有谁可以告诉我用PLC控制温度时,热电阻，热电偶等测温元件需要用那些模块?[/quote]
铂电阻用FX2N-4AD-PT
热电偶用FX2N-4AD-TC
使用方便，编程简单
建议去下载一本《特殊功能模块手册》]]></description>
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 <pubdate><![CDATA[Tue, 18 Mar 2008 16:33:06 +0000]]></pubdate>
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 <pubdate><![CDATA[Tue, 18 Mar 2008 15:49:11 +0000]]></pubdate>
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 <pubdate><![CDATA[Tue, 18 Mar 2008 13:46:47 +0000]]></pubdate>
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 <pubdate><![CDATA[Tue, 18 Mar 2008 12:40:30 +0000]]></pubdate>
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 <description><![CDATA[有谁可以告诉我用PLC控制温度时,热电阻，热电偶等测温元件需要用那些模块?]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-11009#191766.html]]></link>
 <author><![CDATA[玉龙]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 17 Mar 2008 11:22:28 +0000]]></pubdate>
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 <description><![CDATA[需要用到AD模块。把摸拟信号转成数字信号。可以用FX-2AD 实现]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-11009#191755.html]]></link>
 <author><![CDATA[硬功夫]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 17 Mar 2008 10:36:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC怎么去控制温度？

PLC控制的加热元件或者如风机水泵类设备，通过反馈（如热电阻，热电偶等测温元件）来驱动加热元件工作或者停止。
如电热炉：通过温度测控来控制加热管的启动与停止。
锅炉：通过控制引风与送风电机来控制温度以及负压，当然，空调也是基于这个原理。

因此，楼主需要说明，而如果只是单单的这样提问 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-11009#191733.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 17 Mar 2008 09:21:57 +0000]]></pubdate>
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