<?xml version="1.0" encoding="gbk"?>
<rss version="2.0">
<channel>
 <title><![CDATA[S7-214 编程序的两个问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1421957.html]]></link>
 <description><![CDATA[Latest 50 replies of S7-214 编程序的两个问题]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
 <generator><![CDATA[www.ymmfa.com]]></generator>
 <lastBuildDate><![CDATA[Tue, 12 May 2026 23:25:31 +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[]]></title>
 <description><![CDATA[1.&nbsp;&nbsp;模拟量有无正负之分？整数的话直接mov长整型传输到AC0，负数的话求得绝对值转到长整型再求负数传送到AC0；
2.虽然没有R&lt;但是有R&lt;=和R==指令，两个条件换来一个R&lt;的功能。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1421957#1419837.html]]></link>
 <author><![CDATA[sjm213]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 16 Mar 2013 03:43:25 +0000]]></pubdate>
</item>
</channel></rss>