【摘要】 阐述利用PLC和交流变频器等现代控制器件对硅铁厂配料生产线改造的实例,介绍了该系统的硬件构成和软件流程,对自动配料过程中控制软件的设计要点进行了讨论,根据厂方改造要求设计了解决自动配料控制过程一些基本方法,以此说明对旧设备进行自动化技术改造的必要性和可行性。更多还原

【Abstract】 A rebuilding example on the use of PLC and AC frequency converter is expatiated in the ingredient production line of ferrosilicon factory,and the system of hardware and software processes are introduced.The roles of the various parts of the system are discussed.Therefore,the necessity and feasibility of using automation technology in the reformation of old equipment are explained.更多还原