<?xml version="1.0" encoding="gbk"?>
<rss version="2.0">
<channel>
 <title><![CDATA[西门子200&nbsp;&nbsp;MODBUS通信，读写M ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738.html]]></link>
 <description><![CDATA[Latest 50 replies of 西门子200&nbsp;&nbsp;MODBUS通信，读写M ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
 <generator><![CDATA[www.ymmfa.com]]></generator>
 <lastBuildDate><![CDATA[Tue, 21 Apr 2026 01:17:48 +0000]]></lastBuildDate>
  <image>
 <url><![CDATA[images/rss.gif]]></url>
 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
  </image>
<item>
 <title><![CDATA[Re:西门子200&#160;&#160;MODBUS通信，读写M点怎么实现？]]></title>
 <description><![CDATA[[quote][font=arial][color=#333333][backcolor=#f5fcff]可能是我说得不够清楚&#160;&#160; ，，我这里200PLC是作为从站&#160;&#160;&#160;&#160;&#160;&#160; 需要被主站读写&#160;&#160; M0.0 -M0.7&#160;&#160; 而这个M0.0-M0.7除了通信可以控制&#160;&#160; 还受触摸屏控制&#160;&#160; 现在问题是如果用V替代&#160;& ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2016151.html]]></link>
 <author><![CDATA[zhangqi_1234]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 09 Dec 2018 13:29:02 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[Re:西门子200&#160;&#160;MODBUS通信，读写M点怎么实现？]]></title>
 <description><![CDATA[[quote]引用第1楼好久不见啦于2018-12-07 20:54发表的&nbsp;&nbsp;:
把M换成V
[/quote]
s7-200的M和 V可以 位，字，字节，双字读取。不知你用的什么PLC?]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2016020.html]]></link>
 <author><![CDATA[好久不见啦]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 08 Dec 2018 12:29:22 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[触摸屏也可以用V2.3等代替M2.3]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2015983.html]]></link>
 <author><![CDATA[eledesigner]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 08 Dec 2018 07:20:52 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[Re:西门子200&#160;&#160;MODBUS通信，读写M点怎么实现？]]></title>
 <description><![CDATA[modbus 不能读写M区&nbsp;&nbsp;你可以换成V区 我4年前遇到和你一样的问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2015974.html]]></link>
 <author><![CDATA[mahuiyan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 08 Dec 2018 06:05:20 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[可能是我说得不够清楚&nbsp;&nbsp; ，，我这里200PLC是作为从站&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 需要被主站读写&nbsp;&nbsp; M0.0 -M0.7&nbsp;&nbsp; 而这个M0.0-M0.7除了通信可以控制&nbsp;&nbsp; 还受触摸屏控制&nbsp;&nbsp; 现在问题是如果用V替代&nbsp;&nbsp; 例如把VB0 MOV MB0&nbsp;&nbsp; 那么当触摸屏那端改 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2015955.html]]></link>
 <author><![CDATA[k2416207]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 08 Dec 2018 03:06:15 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[例如，使用VW200传输数据，VW200=VB200+VB201。V200.X对应某个要读写的M，V200.X的常开触头控制M线圈。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2015943.html]]></link>
 <author><![CDATA[zhangqi_1234]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 08 Dec 2018 02:29:50 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[把M换成V]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1660738#2015891.html]]></link>
 <author><![CDATA[好久不见啦]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 07 Dec 2018 12:54:51 +0000]]></pubdate>
</item>
</channel></rss>