Discussion on design method of PLC control system for coal mechanized sampling and sample preparation
HU Zhi-Wei
Abstract：Because that the PLC could provide safe and reliable control guarantee for automatic control equipment in industry control field,this paper analyzed the basic principles and basic contents of PLC control system design,the system process and the design requirements of control system were demonstrated,from aspects such as hardware selection and software design,the PLC type could be selected,and from aspects like primary sampler,belt division machine,sample collector and other equipment,operation mode,fault alerts and so on,the control target was analyzed,the control range was determined,through adjusting the process parameters of every stage,the division ratio of sampling and sample preparation system and sample retention amount could become normal,so that the assembly debugging of the system could be achieved.
Keywords：coalmechanized samplingcontrol system of programmable logic controllerprimary samplerhardware selectionsoftware designprocess parameterdivision ratiosample retention amount
Publication Date：2017-01-01
Pages：5( 42-46 )