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 <title><![CDATA[有没有什么东西能将5-300V交流接入到PLC输 ..]]></title>
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 <description><![CDATA[用继电器转换一下]]></description>
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 <description><![CDATA[[quote]引用楼主sccgkong于2013-04-13 11:20发表的 有没有什么东西能将5-300V交流接入到PLC输入点 :
如题，我需要采集5-300V交流信号到PLC记录接通次数，请问大家有好的建议吗
[/quote] 
其实就是把5-300V交流转换成开关量信号到PLC输入]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424774#1431553.html]]></link>
 <author><![CDATA[sccgkong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Apr 2013 08:38:53 +0000]]></pubdate>
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 <description><![CDATA[將5~300V的交流電壓接入電壓表(電子式)
PLC讀取電壓表的值]]></description>
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 <pubdate><![CDATA[Mon, 15 Apr 2013 02:17:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[5-300V的信号？电压互感器？然后模拟量转换器？，你说不得不够清楚啊，只能这么模糊回答。 [s:26]]]></description>
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 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Apr 2013 01:34:30 +0000]]></pubdate>
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 <description><![CDATA[继电器转换]]></description>
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 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 13 Apr 2013 04:18:36 +0000]]></pubdate>
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