基于FPGA的PLC输入端口的扩展技术

The extension technology of the PLC input port based on FPGA

文章在对比几种PLC端口的扩展方法的基础上,提出并实现了一种简单的基于FPGA的PLC输入端口的扩展方法,通过实际硬件与软件编程的结合实验,验证了PLC输入端口扩展的可行性.

Based on the comparable of the expend method of several different kinds of PLC ports,this article achieved a simple expend method by using FPGA as an expend part to the PLC input port.With the combination of hard drive and software,it is possible to expend PLC input ports.