单片机控制改为PLC控制的实例应用分析

The Practical Application Analysis of Changing Single-chip Microcomputer Control to PLC Control

单片机在工业控制领域广泛应用。可编程逻辑控制器(PLC),它采用一类可编程的存储器,用于其内部存储程序,执行逻辑运算、顺序控制等面向用户的指令,并通过数字或模拟式输入/输出控制各种类型的机械或生产过程。比较普通单片机控制与PLC控制的区别,并对SJ-ATIC型气力输送控制系统运用PLC改造,使系统运行更稳定、可靠、安全。

Single-chip microcomputer is widely used in industrial control field.Programmable logic controller（PLC） uses a programmable memory for internal storage procedures to perform user-oriented instructions such as logic operation and sequence control,and controls various types of machinery or production process through the digital or analog input/output.The article compares the difference between the common single-chip microcomputer control and PLC control,and transforms the SJ-ATIC type pneumatic conveying control system by using PLC.