西门子S7-200 PLC与PC基于VB6.0串行通信

Serial Communication between Siemens S7-200 PLC and PC Based on VB 6.0

介绍了SIEMENSS7-200PLC和PC基于VisualBasic6.0的一种串行通信方法,主要阐述了如何使用SIEMENSS7-200和VisualBasic6.0的资源进行串行通信,并通过程序实例说明这种通信方法在光电纠偏通信系统中的应用。

This paper introduces the serial communication between Siemens S7-200 PLC and PC based on Visual Basic 6.0,and mainly expounds how to use the system resource of S7-200 and Visual Basic 6.0 and, by using an actual example of the program, demonstrates the application of S7-200 in the photoelectric error correction system.