Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07d
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- Pages.2489-2491
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- 2005
PLC Real Time OS Verification & Validation in Formal Methods
정형기법을 이용한 PLC RTOS 검증
- Choi, Chang-Ho (POSCON R&D Center) ;
- Song, Seung-Hwan (POSCON R&D Center) ;
- Yun, Dong-Hwa (POSCON R&D Center) ;
- Hwang, Sung-Jae (POSCON R&D Center)
- Published : 2005.07.18
Abstract
Currently, Programmable Logic Contorller(PLC) uses Real Time Operation System(RTOS) as basic OS. RTOS executes defined results as to defined time. General features of RTOS emphasize the priority in each task, high-speed process of external interrupt, task scheduling, synchronization in task, the limitation of memory capacity. For safety critical placement, PLC software needs Verification and Validation(V&V). For example, nuclear power plant. In this paper, PLC RTOS is verified by formal methods. Particularly, formal method V&V uses verification tool called 'STATEMATE', and shows the results.
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