摘要
研讨西门子S7-200小型PLC通过PC Access软件与EXECL表格进行PPI(或USB-PPI)通信,将PLC的输入和输出状态以及寄存器的数值显示在EXECL表格中,并可通过EXECL表格修改PLC相关寄存器的数值,使EXECL表格成为一个简易高效的上位机监控软件应用到一般的工业控制中。
This paper mainly introduces Siemens S7-200 PLC through the PC Access software and EXECL form for PPI（or USB-PPI） communication,The PLC input and output status and register numerical display in EXECL form,and through the EXECL form modified PLC relevant register values,make EXECL form become a simple and efficient monitoring software of the host computer is applied to general industrial control.
