288 Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
Appendix D Safety Data for Safety Modules
Compact 5000 I/O Safety
Input Module Safety Data
Table 93 lists the safety data for the 5069-IB8S and 5069-IB8SK modules.
Table 93 - 5069-IB8S and 5069-IB8SK Module Safety Parameter Data
Attribute
Point Operation Type
Single Channel Dual Channel
(at controller instruction
level)
Safety Function Architecture 0 1
Safe Failure Rate (
s
) [failures/hr] 1.16E-06 1.49E-06
Dangerous Failure Rate (
D
) [failures/hr] 7.38E-07 1.04E-06
Dangerous Detected Failure Rate (
DD
) [failures/hr] 7.37E-07 1.04E-06
Dangerous Undetected Failure Rate (
DU
) [failures/hr] 3.18E-10 2.54E-10
Safety Reaction Time, SRT [millisecond] 6
Automatic Diagnostic Test Interval (TD) [hr] 4
Useful Life [yr] 20
Systematic Capability (SC) 3
Safe Failure Fraction (SFF) [%] 99.98% 99.99%
PFH 3.18E-10 2.54E-10
PFD
AVE
10 yrs 1.39E-05 1.11E-05
Mission Time 20 yrs 2.78E-05 2.22E-05
Diagnostic Coverage Average (DC
AVE
) 99.96% 99.98%
Spurious Trip Rate (STR) 3.65E-06 4.52E-06
MTTF [years] 60.05 45.25
MTTF
D
[years] 154.75 110.10
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