机械方向毕设外文翻译

机械方向毕设外文翻译内容摘要：

ansferred between the CNC system software and application software. NC variable is used for sending control orders such as the selection of work type, cycle starting, feeding keeping and reset operation etc from application software to NC kernel, or reading the machine tool coordinate and the NC kernel work states from the NC kernel. The NC data include the NC program, tool data and machine tool parameters etc. Using the PLC variable, the orders can be sent to the PLC kernel from application software straightway and the information of PLC kernel can be read. The PLC kernel offers plenty blending function for invoking. The NC software environment of the CH2020/S is shown in figure 4. Fig. 4. CH2020/S NC software environment Based on objectoriented technology, in the open CNC software, the control sys tem is divided into many functional modules to acplish different functions. The C/S module is used for transferring the information between modules and control sys tem kernel or different modules [4][6]. The module offering service function is the server module and the module asking for the function service is client module. For the scalability, maintainability and reconfiguration of CNC system software, the software is designed with modular method. Based on the control system function, different modules are designed for multitask ability of control system. The main control module should acplish many plex tasks, such as the initialization, the NC program input, edit piling, setting parameters and operation. So it is needed to design a series of unattached function program modules, and furthermore, the same program module has the different module contents under the different control methods. 大连交通大学 2020 届本科毕业生毕业设计（论文）外文翻译 j i The control program is designed based on the Windows operating system, so it has the multitask coordinated ability. In the program, user manipulative performance is posed of many windows and each of them executes one task. And the functions are realized petitively in the different windows. The states of each task are managed by the management program [5][6]. The main function of mainmenu performance is monitoring, performance management, function controlling and system managing. The control part is the vital part of the whole software, and it determines the qualification of the control system. The flow chat of the whole software is shown in . After initialization of the system, the reference point setting and etc., the SERCOS Master’s drivers can be used for operating its interface card. And SERCOSMaster interface card supplies the difference interpolation funct。