组态软件直接地址变量重叠检查的设计与实现

Checking Directly Address Variables Overlap in Configuration Softeware for Industy

工业组态软件(DCS、PLC)中涉及到大量的直接地址变量应用,这些变量是由用户定义到指定的地址,正是这种灵活的定义变量方式可能导致多个变量在内存中共用一块内存。以上现象有的属于用户需要操作内存的值而定义到指定的内存,有的情况是用户无意中定义的。通过研究分析这些直接地址变量在内存中分配的特点,探寻一种算法结构,在允许的时间和空间上查找到重叠的变量并通知用户。

There are many directly address variables and they are mostly used in industrial configuration software（DCS,PLC）. These variables are defined by the user for the specified address,the way which is the flexible definition of variables may result in variables in memory using the same time.This happens to have deliberately or unintentionally.This paper research and analysises these directly address variables to find an algorithm which can solve our problems with less time and space and to tell user how many variables are overlap.