CPLD在PLC中的应用

The Application of CPLD in PLC

为了克服可编程逻辑控制器PLC输出响应速度慢的缺点,文中对复杂的可编程逻辑器件CPLD在PLC控制系统中的可行性和应用优势进行了分析,提出了一种基于CPLD的PLC的设计与实现方法。

In order to overcome the defect of slow responding of PLC output, the feasibility and advantages of CPLD in PLC control system applications are analyzed, and PLC design and realizing methods based on CPLD are presented.