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 <title><![CDATA[西门子S7--200CPU226加一个EM235用来测温 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269.html]]></link>
 <description><![CDATA[Latest 50 replies of 西门子S7--200CPU226加一个EM235用来测温 ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <description><![CDATA[EM235所能接收的信号为0-10VDC或者4-20MA，你的模块上连接热电阻内部转换后当然不正确了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1193779.html]]></link>
 <author><![CDATA[chenmaolei]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 04 Jan 2012 08:37:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[中间要加个温度变送器，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1192871.html]]></link>
 <author><![CDATA[lijieyuxuxi]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 02 Jan 2012 10:04:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[到底是PT100还是热电偶？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1192262.html]]></link>
 <author><![CDATA[zjs731]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 31 Dec 2011 14:09:13 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[EM235模拟输出0-20mA某固定值,串联接入热电偶，用AIW0取值，经过数学公式转化成对应温度值即可。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1192129.html]]></link>
 <author><![CDATA[yaozg]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 31 Dec 2011 08:52:27 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用模拟量模块做温度测量要进行变换的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1190267.html]]></link>
 <author><![CDATA[xiakebiao]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 28 Dec 2011 01:19:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[只有热电阻，没有变送器的话是不能用EM235，EM235只能输入标准电流或电压信号！如楼上所说用EM231 RTD，不过这个 东西价格不菲啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1057130.html]]></link>
 <author><![CDATA[回忆依然最美]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 31 May 2011 01:34:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是有EM231 RTD模块吗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1056770.html]]></link>
 <author><![CDATA[wfb610]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 30 May 2011 13:10:18 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PT100是热电阻吧？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-107269#1056759.html]]></link>
 <author><![CDATA[wfb610]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 30 May 2011 13:03:12 +0000]]></pubdate>
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