PLC控制系统黑匣子功能的设计与实现

Design and Realization of Black Box Function in PLC Control System

一种PLC控制系统,在不增加硬件设施、不改变操作方式的前提下,设计编制相应的梯形图程序,利用PLC数据存储器,可实现操作过程、工作状态、运行时间等各种数据记录的黑匣子功能,该功能具有事故或故障分析、工作时间和生产量统计、操作过程分析等多种用途。

A kind of PLC control system,without adding hardware or changing operation,simply by designing related ladder programs and using the PLC data storage,can realize the black box function of recording the data of operation process,working status,running time,etc.This function can be applied to failure analysis,working time and production statistic,and operation process analysis.