基于CC-link总线的自动化生产线分布式控制技术

摘要

为适应产业转型升级对网络化自动化生产线提出的迫切需求,解决传统分布式控制(DCS)存在的通信速率低、故障率高的问题,利用一套6单元小型加工装配自动化生产线,开展了基于CC-link现场总线的新型分布式控制技术的研究,阐述了设备软、硬件设计和CC-link总线数据链接过程.这种结合工作流程和通信方式特点构建的过程控制级采用CC-link总线、过程监控级采用RS485/422串行总线的两层分布式控制网络,可实现手动、自动控制和上位机远程监控.使用效果表明该控制技术具有可靠性高、适应性强、成本较低的特点.%In order to meet the urgent demand for network-based automatic production lines resulting from transformation and upgrading of industrial structure,and for effective solution on the problem of low communication rate and high failure of traditional Discrete Control System(DCS),a new discrete control technology based on CC-link Field Bus was studied through using a set of 6-unit small-scale automated assembly and storage line,and the design process of software,hardware of the equipment and CC-link Bus data link was elaborated.The functions of manual,automatic control as well as remote supervision on upper machine could be implemented by the two-layer distributed control network composed of process control level based on CC-link Bus with characteristics of working flow and communication method structure and process monitor level based on RS485/422 serial Bus.Practice effect shows that the control technology bears the characteristics of high reliability,strong adaptability and lower cost.