Patent ID: 8099672
Filing Date: 2012-01-17
Classification: G05B

Abstract:
1. A method for generating information pertinent to management of a safety instrumented function comprising: receiving, over a period of time, test information for instrumented function components in the safety instrumented function; calculating, as a function of the test information, a plurality of probability of failure on demand values, wherein each of the probability of failure on demand values represents a probability of failure on demand of the safety instrumented function at a different point in time within the period of time; generating display information representative of the plurality of probability of failure on demand values and wherein the generating comprises: converting each of the plurality of probability of failure on demand values to a safety integrity level represented as a real number, thereby producing a plurality of safety integrity levels represented as real numbers; wherein the display information representative of the plurality of probability of failure on demand values includes the plurality of safety integrity levels represented as real numbers.