plc畢業(yè)設(shè)計(jì)中英文翻譯-plc設(shè)計(jì)-閱讀頁(yè)
2025-02-08 06:47本頁(yè)面
【正文】 set of PLC has one CPU at least, it receives and stores user39。s procedure storing device , produce the corresponding control signal according to the task that the order stipulates after analysing, go to mand relevant control circuits . CPU and realizes by arithmetic unit , controller , register mainly the data , control and state bus of the connection among them are formed , unit CPU still includes peripheral chip , interface of the bus and relevant circuit. The memory is used for storing the procedure and data mainly, is indispensable position unit PLC. In user39。s terminal station of the type and use more and more extensive at present, it is popularized very much that the puter (operation configuration software ) makes manmachine interface. The munication of PLC is worked May collect , convey producing and manage the data promptly and efficiently while relying on the advanced industrial work technology. So, the importance of the work in the automatic system integration project is more and more remarkable, even someone proposes the view statement that the work is the controller . PLC have function that munication work, it make PLC and between the PLC , PLC with go to location puter and other intellectual equipment can exchange information , form a unified whole, realize dispersing centralized control. Most PLC has RS232 interface, puts and supports the interface of each munication protocol when there is some. Communication of PLC adopt through some data munication , PROFIBUS or industry39。s procedure . The systematic procedure includes controlling procedure , piler , diagnostic program ,etc., used for manage the whole machine , translate the procedure language into a machine languaging mainly, diagnose the mechanical disorder. Systems soft ware offer by PLC producer and solidification among EPROM, can39。t directly control outside load , can only make middle result to use while supporting CPU . PLC scans the incident according to circulation, carry out along the priority order of the laddershaped picture, result of the cycle stay in state of outputting temporarily in the person who deposit so value ordered to output can regard as terms use among the procedure in user in the same scanning. Sentence predicative speech , is similar to the assembler language . Logic functional diagram language, continue to use semiconductor logic block diagram is it express to e, one operation frame generally show one function on the left draw introduction , on the right paint and export. 4 Use the programe of STEP7 Establishing a project structure, the project is just like a file, all data exist among them with the structure of dividing floor, you can use at any time. After establishing a project, all other tasks are carried out under this project. Configuration one station, configuration one station to appoint you want programmable controller that use, such as S7300 , S7400 ,etc.. Configuration hardware, configuration hardware appoint control scheme of you want template that use and with what kind of address visit these template among the procedure in user among the form in configuration, the address needn39
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