Safety Parameters; Hardware And Software Configuration; Failure Category - PR 9113 Manual De Instalación

Safety Manual
7

Safety parameters

probability of dangerous Failure per Hour (pFH)
probability of failure on demand (pFD) -
1 year proof test interval
proof test interval (10% of loop pFD)
Safe Failure Fraction
Demand response time
Demand mode
Demand rate
Mean Time To Repair (MTTR)
Diagnostic test interval
Hardware Fault Tolerance (HFT)
Component Type
SIL capability
Description of the "Safe State"
Note1: The 9113 contains no lifetime limiting components, therefore the pFH figures are valid
for up to 12 years, according to IeC 61508.
8

Hardware and software configuration

all configurations of software and hardware versions are fixed from factory, and cannot be
changed by end-user or reseller.
This manual only covers products labelled with the product version (or range of versions)
specified on the front page.
9

failure category

Fail Safe Detected
Fail Safe undetected
Fail Dangerous Detected
Fail Dangerous undetected
6
9113 TeMpeRaTuRe / ma CONVeRTeR
failure category
Version No. V5R0
6.10e-08
1
Note
3.96e-04
3 years
90.7 %
Signal input: < 0.5 seconds
Temperature input: < 1.1 seconds
High
3000 seconds
24 hours
30 seconds
0
B
SIL 2
Output ≤ 3.6 ma or
output ≥ 21 ma
failure rates (1/h)
0.000e-0
2.34e-7
3.67e-7
6.10e-8