该系统具有较少的硬件失效,主要表现为物理过程的失效。
The system has fewer hardware failures, and it is mainly for the physical process of failure.
什么样的失效可能影响组件(例如处理失败、硬件失效、网络失效)?
What failures might affect that component (e.g. process failure, hardware failure, network failure)?
首先介绍了安全仪表系统在实际应用中的需求以及安全仪表系统的硬件失效概率评估的必要性。
Firstly, this paper brings out the requirement of the Safety Instrument System in practical application and introduces the necessity of the PFD evaluation for SIS.
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