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 <title><![CDATA[哪位大神能帮忙画一个关于电加热器的梯形 ..]]></title>
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 <description><![CDATA[Latest 50 replies of 哪位大神能帮忙画一个关于电加热器的梯形 ..]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[可以使用pid控制]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2019000.html]]></link>
 <author><![CDATA[lsg028]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 22 Dec 2018 07:08:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直接用模拟量读出来转换成相应的温度就好了啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2018949.html]]></link>
 <author><![CDATA[安静凌月]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 22 Dec 2018 03:21:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[自己顶]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2018867.html]]></link>
 <author><![CDATA[wmy707436680]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 21 Dec 2018 11:10:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用楼主wmy707436680于2018-12-18 18:57发表的 哪位大神能帮忙画一个关于电加热器的梯形图给我看看看 :
要点就是 总共3组控制 有个手动自动，温度信号是4-20毫安由温控仪表反馈的 ，超温报警，低温报警
请大神帮帮忙
[/quote]
温控表不就可以显示温度的嘛]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2018593.html]]></link>
 <author><![CDATA[honggun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 20 Dec 2018 11:30:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用仪表自带的报警点就可以控制了，根本不用plc]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2018185.html]]></link>
 <author><![CDATA[honggun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 19 Dec 2018 10:44:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[求帮帮忙]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1661281#2018180.html]]></link>
 <author><![CDATA[wmy707436680]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 19 Dec 2018 10:26:40 +0000]]></pubdate>
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