Kim Tae Wan , Jang Cheon Hyeon

The KIPS Transactions:PartD, Vol. 11, No. 2, pp. 415-422, Apr. 2004
10.3745/KIPSTD.2004.11.2.415,   PDF Download:

Abstract

Automation systems improve the productivity of works which relate to product design, facilities management, fault processing and quality evaluation. In these systems, the description language for monitoring and control process is called flow control language. These are five flow control languages : IL, ST, FBD, SFC and LD. IL and ST are based on text form. FBD, SFC and LD are based on graphic form. Generally, a software which monitors and controls a system is allowed to use just one flow control language. It is impossible to use more than two languages for simulation in the same system environment. In this paper, we analyzed the characteristics of flow control languages and the process of programming in the legacy system. In addition, for the integrated processing of languages, we propose Extended ST based on the high-level ST language. Based on this research, we implement a graphical language editor and EST-IL convertor. The graphical language editor makes sequence rules, and converts graphical language into EST. EST-IL convertor has a function to convert EST into IL which is similar to assembly language. As the result of this paper, we present a scheme which integrates all the flow control language processing based on IL.

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