New considerations for SIL verification of functional safety fieldbus communication
文献类型：期刊论文
| 作者 | Ding L(丁龙); Wang H(王宏); Xu AD(徐皑冬) ; Li SX(李世兴)
|
| 刊名 | Journal of Loss Prevention in the Process Industries
 |
| 出版日期 | 2016 |
| 卷号 | 43页码:488-502 |
| 关键词 | Safety integrity level functional safety fieldbus communication residual error probability residual error rate safety communication layer safety instrumented system |
| ISSN号 | 0950-4230 |
| 产权排序 | 1 |
| 通讯作者 | 丁龙 |
| 中文摘要 | Safety integrity level (SIL) verification of functional safety fieldbus communication is an essential part of SIL verification of safety instrumented system (SIS), and it requires quantifying residual error probability (RP) and residual error rate of function safety communication. The present quantification method of residual error rate uses RP of cyclic redundancy check (CRC) to approximately replace the total RP of functional safety communication. Since CRC only detects data integrity-related errors and CRC has intrinsically undetected error, some other residual errors are not being considered. This research found some residual errors of the present quantification method. Then, this research presents an extended new approach, which takes the found residual errors into account to determine more comprehensive and reasonable RP and residual error rate. From perspective of the composition of safety message, this research studies RPs of those controlling segments (sequence number, time expectation, etc.) to cover the found residual errors beyond CRC detection coverage, and the influences of insertion/masquerade errors and time window on RP are investigated. The results turn out these residual errors, especially insertion/masquerade errors, may have a great influence on quantification of residual error rate and SIL verification of functional safety communication, and they should be treated seriously. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384775400052 |
| 源URL | [http://ir.sia.cn/handle/173321/18833]  |
| 专题 | 沈阳自动化研究所_工业控制网络与系统研究室 |
| 推荐引用方式 GB/T 7714 | Ding L,Wang H,Xu AD,et al. New considerations for SIL verification of functional safety fieldbus communication[J]. Journal of Loss Prevention in the Process Industries,2016,43:488-502. |
| APA | Ding L,Wang H,Xu AD,&Li SX.(2016).New considerations for SIL verification of functional safety fieldbus communication.Journal of Loss Prevention in the Process Industries,43,488-502. |
| MLA | Ding L,et al."New considerations for SIL verification of functional safety fieldbus communication".Journal of Loss Prevention in the Process Industries 43(2016):488-502. |
入库方式： OAI收割
来源：沈阳自动化研究所
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