摘要
介绍了PC机与西门子S7-200PLC之间的通信。PC端采用VB6.0中的MSComm控件,PLC端利用自由口通讯来实现彼此之间的信息交换,并给出相应程序的部分代码。
The communication between PC and SIEMENS S7-200PLC is discussed. It used the ActiveX controls- MSCcomm in PC and SIMATIC instruction in PLC to design the communication program, and giving parts of codes of the program.
出处
《科学技术与工程》
2008年第23期6357-6360,共4页
Science Technology and Engineering