A Safety Related Analog Input Module Based On Diagnosis And Redundancy

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	A Safety Related Analog Input Module Based On Diagnosis And Redundancy
	Yu HZ(于洪洲); Xu AD(徐皑冬); Shi G(石刚)
	2010
会议名称	2010 8th IEEE International Conference on Control and Automation (ICCA 2010)
会议日期	June 9-11, 2010
会议地点	Xiamen, China
关键词	safety-related AI diagnosis circuit redundancy component SIS IEC61508 SIL
页码	2177-2182
中文摘要	This paper introduces a safety-related analog input module to achieve data acquisition of 4-20mA current signals. It is an integral part of the safety-instrumented systems (SIS) which is used to provide critical control and safety applications for automation users. In order to ensure the performance of analog input circuit in good condition, a combination of hardware and software diagnosis should be carried out periodically. These kinds of internal self-diagnosis allow the device to detect improper operation within itself. If potentially dangerous process occurs, the AI has redundancy to maintain operation even when parts fail. The article presents special hardware, diagnostic software and full fault injection testing of the complete design. The test result shows that the safety-related AI is capable of detecting and locating of mostly potential faults and internal component failures.
收录类别	EI
产权排序	1
会议录	2010 8th IEEE International Conference on Control and Automation (ICCA 2010)
会议录出版者	IEEE Computer Society
会议录出版地	Piscataway, NJ, USA
语种	英语
ISBN号	978-1-4244-5195-1
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/8316]
专题	沈阳自动化研究所_工业信息学研究室
推荐引用方式 GB/T 7714	Yu HZ,Xu AD,Shi G. A Safety Related Analog Input Module Based On Diagnosis And Redundancy[C]. 见:2010 8th IEEE International Conference on Control and Automation (ICCA 2010). Xiamen, China. June 9-11, 2010.