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 <title><![CDATA[FX PLC保持继电器的奇怪现象]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067.html]]></link>
 <description><![CDATA[Latest 50 replies of FX PLC保持继电器的奇怪现象]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是呀x0是保持的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221803.html]]></link>
 <author><![CDATA[soft100]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 08:07:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第9楼roverji于2012-03-05 12:58发表的&nbsp;&nbsp;:
我想在故障发生时，用故障信号驱动TRD指令记录故障发生时间，如果这样，那么在查看前开关机或者由STOP转至RUN就会失掉这个记录。
[/quote]
串个初始脉冲在里面怎样？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221756.html]]></link>
 <author><![CDATA[bigluo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 07:00:19 +0000]]></pubdate>
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 <description><![CDATA[M500&nbsp;&nbsp;D500~D506&nbsp;&nbsp;C100都是断电保持的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221738.html]]></link>
 <author><![CDATA[roverji]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 06:25:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[m500是断电保持吧。。。。 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221728.html]]></link>
 <author><![CDATA[刻骨铭心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 06:09:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[attachment=79371] 
X0为故障信号。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221701.html]]></link>
 <author><![CDATA[roverji]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 05:14:09 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我想在故障发生时，用故障信号驱动TRD指令记录故障发生时间，如果这样，那么在查看前开关机或者由STOP转至RUN就会失掉这个记录。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221692.html]]></link>
 <author><![CDATA[roverji]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 04:58:26 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PLC运行时把保存的数据刷新，肯定有个上升沿，有啥问题哈？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221667.html]]></link>
 <author><![CDATA[zhengyueyong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 03:59:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用自锁或ＳＥＴ　Ｍ５００就可以保持了，手册上有说过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221665.html]]></link>
 <author><![CDATA[yanzhi2008]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 03:58:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[断电保持是指断电后再运行时还保持着断电前的状态，PLC在断电时把需要保持的一些数据存起来，然后再上电时恢复，你计数干什么？难道要求PLC在断电时依然工作？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221664.html]]></link>
 <author><![CDATA[zhengyueyong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 03:58:25 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[attachment=79369] 
用GX works2 测试也是如此，有没有哪位师傅能解决这个问题啊？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1221655.html]]></link>
 <author><![CDATA[roverji]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 05 Mar 2012 03:47:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[即使X0保持接通也是这样的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1220347.html]]></link>
 <author><![CDATA[roverji]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 03 Mar 2012 00:59:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果不保持的话你就不到检测到上升沿信号了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1220332.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 03 Mar 2012 00:17:23 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[X0又不会保持，呵呵]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-139067#1220322.html]]></link>
 <author><![CDATA[lilin0734]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 03 Mar 2012 00:02:24 +0000]]></pubdate>
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