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 <title><![CDATA[PLC怎样采集大电流]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348.html]]></link>
 <description><![CDATA[Latest 50 replies of PLC怎样采集大电流]]></description>
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 <description><![CDATA[电流互感器要保持导通,不然通断时会产生高压.所以不宜采用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1209039.html]]></link>
 <author><![CDATA[jzzjzq]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 14 Feb 2012 01:05:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不好意思，楼上的大哥，为什么用互感器不可以？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205667.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 14:34:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不能用电流互感器，用合适电流继电器可以]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205659.html]]></link>
 <author><![CDATA[li.honda]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 14:26:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[现在初步有一个方法，就是经互感器提取主回路电流，然后经整流桥，之后加一个合适的电阻去驱动光耦，从而产生一个开关量给PLC,请多指教]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205598.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 13:17:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[非常感谢，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205580.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 13:00:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第8楼崇庆阳光于2012-02-07 13:36发表的&nbsp;&nbsp;:
过电流继电器就行
[/quote]
[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205369.html]]></link>
 <author><![CDATA[sport1988]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 06:48:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[过电流继电器就行]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205329.html]]></link>
 <author><![CDATA[崇庆阳光]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 05:36:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢各位的帮忙]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205312.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 04:53:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[AD模块太贵了，老板让自己做个电路，送开关信号，只是检测4-20A的电流存在与否，不用得到具体电流值]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205311.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 04:52:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[A/0(4)-20mA的变送器，送到PLC的AD模块]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205280.html]]></link>
 <author><![CDATA[wananjushi]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 03:51:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[参考：
[url]http://www.188sx.com/main.asp[/url]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205263.html]]></link>
 <author><![CDATA[崇庆阳光]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 03:22:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我用？A/0(4)-20mA的变送器，送到PLC的AD模块。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205261.html]]></link>
 <author><![CDATA[崇庆阳光]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 03:20:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢你，我看一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205051.html]]></link>
 <author><![CDATA[huolang_518]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 06 Feb 2012 14:37:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[电流变送器可以。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-136348#1205045.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 06 Feb 2012 14:23:08 +0000]]></pubdate>
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