VC++与西门子s7-200PLC的串口通讯的实例-VC and s7-200 serial communication

通过VC实现计算机与西门子S7－200间的串口通讯-By VC Computer and Siemens S7-200 serial communication between

该VC++源程序的功能为实现上位机PC与下位机西门子S7-200型PLC的串口通讯（内附下位机S7-200型PLC程序）。-The function of VC++ source code for the host computer PC and the next crew PLC Siemens S7-200 type of serial communication (with lower machine-type PLC S7-200 program).

要通过VC实现计算机与西门子S7－200间的串口通讯-Through VC Computer and Siemens S7-200 serial communication between