很有用的西门子通讯软件 PRODAVE 的例子， VB 程序与prodave 的通讯-Useful example of Siemens Communication Software PRODAVE, VB program with prodave of communication

prodave是西门子PLC与高级语言的程序接口,如何使用它,这里给出一个VB与西门子PLC通讯并读写DB块数据的例子-Prodave is Siemens PLC and high level language program interface, how to use it, so here is a VB and Siemens PLC and literacy DB block of data example

prodave例子程序，采用vb版本的例子，对开发prodave有参考价值。(demo prodave,demo is in prodave installation package,and you can see the vb sourcecode.)