Energize-to-action 2-year proof test interval – Rockwell Automation 1715-OF8I Redundant I/O System User Manual User Manual
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294
Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
Appendix E
PFD and PFH Calculations for a SIL 2 System
Energize-to-action 2-year Proof Test Interval
Table 66 - Energize-to-action 2-year Proof Test Interval
MTTR 10 Hours
PTI 2.0 Years
Simplex Configuration
Duplex Configuration
Ca
t N
o.
Se
rie
s
Fi
rm
w
are
Ve
rs
io
n
Des
cr
ip
tio
n
MT
BF
λs
λdu
λd
d
SFF
tc
e'
HFT
PFH
e
PFDe
ST
R
β
βd
tc
e'
tg
e'
HFT
PFH
e
PFDe
Arch
ST
R
1715-
AENTR
A
2.001
EtherNet
adapter
dual
module
841,9
73
7.07E-
07
1.67E-
08
4.89E-
07
93
.55%
N/A
N/A
N/A
N/A
N/A
1.0
%
1.0
%
2.80E+
02
1.90E+
02
1
5.08E-
09
1.52E-
06
1oo2D
7.07E-
08
1715-
IB16D
A
2.001
16-channel
digital input
module
3,535
,791
1.88E-
07
1.02E-
09
1.44E-
07
99
.30%
7.14E+
01
0
1.11E-
09
1.12E-
05
3.33E-
07
1.0
%
0.5
%
3.69E+
01
2.79E+
01
1
8.22E-
10
8.88E-
07
1oo2D
1.88E-
09
1715-
IF16
A
2.001
16-channel
analog
input
module
3,535
,791
1.88E-
07
1.02E-
09
1.44E-
07
99
.30%
7.14E+
01
0
1.11E-
09
1.12E-
05
3.33E-
07
1.0
%
0.5
%
3.69E+
01
2.79E+
01
1
8.22E-
10
8.88E-
07
1oo2D
1.88E-
09
1715-
OB8DE
A
2.001
16-channel
digital
output
module
9,677,0
85
1.22E-
07
8.63E-
09
3.53E-
07
97
.61%
2.19E+
02
0
8.63E-
09
7.92E-
05
4.74E-
07
1.0
%
1.0
%
2.19E+
02
1.49E+
02
1
3.67E-
09
8.00E-
07
1oo2
1.22E-
09
1715-
OF8I
A
2.001
16-channel
analog
output
module
5,446,1
79
3.56E-
07
3.32E-
08
4.71E-
07
93
.42%
5.87E+
02
0
3.36E-
08
3.00E-
04
8.27E-
07
1.0
%
0.5
%
5.87E+
02
3.95E+
02
1
3.38E-
09
6.88E-
06
1oo2
3.56E-
09