The MTTF and reliability evaluation of a PLC system
SCIE
SCOPUS
- Title
- The MTTF and reliability evaluation of a PLC system
- Authors
- Lee, GB; Han, ZD; Lee, JS
- Date Issued
- 2004-01
- Publisher
- TRANS TECH PUBLICATIONS LTD
- Abstract
- This paper presents the evaluation technique of the mean time to failure (MTTF) and reliability corresponding to a programmable logic controller (PLC) structures such as a single controller, a dual controller and a triple modular redundancy (TMR) controller. The failure and repair period of PLCs are surveyed, and the failure rate of each unit composing a PLC is calculated. The MTTF of a single PLC system and a dual PLC system is computed with failure rate and compared. Reliability and MTTF with respect to a dual controller and a TMR controller are calculated and analyzed by using the Markov model in order to present the operation standards of a PLC.
- Keywords
- reliability; MTTF; MTTR; PLC system; TMR controller; Markov model
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17704
- DOI
- 10.4028/www.scientific.net/KEM.270-273.1719
- ISSN
- 1013-9826
- Article Type
- Article
- Citation
- KEY ENGINEERING MATERIALS, vol. 270-273, page. 1719 - 1724, 2004-01
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- There are no files associated with this item.
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