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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