The software function, modules and data organization of the Upper Layer Computer are explained, the process of main program and that of the communication with Upper Layer Computer are narrated.
详述了上位机软件的功能、模块及数据的组织，分析了主程序流程和与下位机通信的流程。
The software function, modules and data organization of the Upper Layer Computer are explained, the process of main program and that of the communication with Upper Layer Computer are narrated.
详述了上位机软件的功能、模块及数据的组织，分析了主程序流程和与下位机通信的流程。
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