基于PLC技术的自动化液位仪表故障识别系统研究  

Research on the Fault Identification System of Automatic Liquid LevelInstrument Based on PLC Technology

作　　者：曹硕 许巍 刘向铭 CAO Shuo;XU Wei;LIU Xiangming(Tianjin Branch of CNOOC(China)Co.,Ltd.,Tianjin 300451)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300451

出　　处：《现代制造技术与装备》2023年第8期151-153,共3页Modern Manufacturing Technology and Equipment

摘　　要：自动化液位仪表功能全面,集成度高,便于工业生产,但给检修维护造成一定难度,可基于可编程逻辑控制器(Programmable Logic Controller,PLC)技术设计研究针对自动化液位仪表的故障识别系统。文章首先简述了自动化液位仪表的工作原理,其次分析了自动化液位仪表应用期间常见的故障问题,最后从整体结构构建、硬件结构设计、软件流程设计和功能设计检测4个方面提出以PLC技术为支撑的故障识别系统的构建方法。Automatic liquid level instrument has comprehensive functions and high integration,which is convenient for industria l production,but causes certain difficulty for maintenance and maintenance.A fault identification system for automatic liquidle vel instrument can be designed and researched based on Programmable Logic Controller(PLC)technology.This paper first describes the working principle of automatic level meter,then analyzesh te common fault problems during the application of automatic lveel meter,and finally puts forward the construction method of fautl identification system supported by PLC technology from four aspects:overall structure construction,hardware structure design,software flow design and function design and detection.

关 键 词：可编程逻辑控制器(PLC) 自动化液位仪表 故障识别系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TH816[自动化与计算机技术—控制科学与工程]