The effect of diagnostic and periodic proof testing on the availability of programmable safety systems
Wolfgang Velten-Philipp, Michel Houtermans · International Conference on Communications · 2006
The purpose of this paper is to show the effect diagnostic and periodic proof testing have on the availability of the safety function carried out by programmable electronic systems. For three different architectures the influence of the diagnostic coverage, the proof test coverage, and the proof test interval on the probability of failure on demand are determined. Performance indicators are used to express this influence and show the effect.