介紹嵌入式軟PLC 硬件設計平臺和軟件設計平臺，利用梯形圖、硬件接口映射及模塊化設計技術開發面向工業控制嵌入式軟PLC系統。軟PLC 系統由開發系統和運行系統組成，其中開發系統將程序翻譯成目標代碼，運行系統加載目標代碼，根據目標代碼執行指令，實現控制功能。
關鍵詞：嵌入式軟PLC；梯形圖；映射技術

Research and Implementation of Embedded Soft PLC System
WU Yu-xiang, ZHOU Dong-xia, LIN Jin-yun
(College of Automation, South China University of Technology, Guangzhou 540641)
【Abstract】The hardware and software design platform of embedded soft PLC is presented. Embedded soft PLC system for industrial control is
developed by the techniques of ladder diagram, hardware interface mapping and modular design. This system is composed of development system
and operating system. The development system translates the programs based on graphics language into target code, and the operating system loads
the target code and executes command based on the code to control the system.
【Key words】embedded soft PLC; ladder diagram; mapping technology