
114
Rockwell Automation Publication 1756-RM001I-EN-P - May 2012
Appendix C
PFD Calculations for a SIL 2 System
1756-OF6CI
ControlLogix isolated analog output module
x
8,354,667
1.197E-07
—
1.47466E-07
1756-OF6VI
ControlLogix isolated analog output module
x
21,604,960
4.629E-08
—
1.4717E-07
1756-OF8H
ControlLogix HART analog output module
x
5,118,187
1.954E-07
—
1.47774E-07
1794-ACN15/D
(4)
FLEX I/O ControlNet adapter
x
8,223,684
1.126E-07
—
1.47474E-07
1794-ACNR15/D
(4)
FLEX I/O ControlNet redundant adapter
x
8,223,684
1.126E-07
—
1.47474E-07
1794-ACNR15XT/D
(4)
FLEX I/O-XT ControlNet redundant adapter
x
8,223,684
1.126E-07
—
1.47474E-07
1794-AENT/B
FLEX I/O EtherNet/IP adapter
x
1,779,827
5.6185E-07
—
1.49309E-07
1794-AENTR
(4)
FLEX I/O EtherNet/IP redundant adapter
x
1,268,070
7.886E-07
—
1.50293E-07
1794-AENTRXT
(4)
FLEX I/O-XT EtherNet/IP redundant adapter
x
1,268,070
7.886E-07
—
1.50293E-07
1794-IB16
FLEX I/O 16 sink input module
x
179,506,158
5.57084E-09
—
1.47006E-07
1794-1B16XT
(4)
FLEX I/O-XT 16 sink input module
x
16,300,000
6.13497E-08
—
1.4723E-07
1794-IJ2
FLEX I/O 2-channel counter module
x
55,344,640
1.80686E-08
—
1.47056E-07
1794-IJ2XT
(4)
FLEX I/O-XT 2-channel counter module
x
11,714,128
8.5367E-08
—
1.47327E-07
1794-IP4/B
FLEX I/O 4-channel counter module
x
220,227,200
4.53984E-08
—
1.47166E-07
1794-IB10XOB6
FLEX I/O 10 input/6 output module
x
100,000,000
0.00000001
—
1.47024E-07
1794-IB10XOB6XT
(4)
FLEX I/O-XT 10 input/6 output module
x
22,202,487
4.504E-08
—
1.47166E-07
1794-OB8EP
FLEX I/O 8 protected output module
x
100,000,000
0.00000001
—
1.47024E-07
1794-OB8EPXT
FLEX I/O-XT 8 protected output module
x
2,389,669
4.18468E-07
—
1.48701E-07
1794-OB16
FLEX I/O 16 output module
x
54,322,632
1.84085E-08
—
1.47058E-07
1794-OB16P
FLEX I/O 16 protected output module
x
100,000,000
0.00000001
—
1.47024E-07
1794-OB16PXT
FLEX I/O-XT 16 protected output module
x
1,139,840
8.77316E-07
—
1.50685R-07
1794-OW8
FLEX I/O 8 relay output module
x
29,088,895
3.43774E-08
—
1.47122E-07
1794-OW8XT
FLEX I/O-XT 8 relay output module
x
1,312,973
7.6163E-07
—
1.50175E-07
1794-IE8/B
FLEX I/O 8 analog input module
x
18,914,770
5.28687E-08
—
1.47196E-07
1794-IE8XT/B
FLEX I/O-XT 8 analog input module
x
1,959,360
5.10371E-07
—
1.4909E-07
1794-IF4I
FLEX I/O 4 isolated analog input module
x
9,885,959
1.01154E-07
—
1.47391E-07
1794-IF4IXT
(4)
FLEX I/O-XT 4 isolated analog input module
x
7,297,140
1.3704E-07
—
1.47536E-07
1794-IF4ICFXT
(4)
FLEX I/O-XT 4 isolated analog input module
x
7,297,140
1.3704E-07
—
1.47536E-07
1794-IR8
FLEX I/O 8 RTD input module
x
5,016,231
1.99353E-07
—
1.47791E-07
1794-IRT8/B
FLEX I/O 8 RTD/thermocouple input module
x
1,407,269
7.10596E-07
—
1.49952E-07
1794-IRT8XT/B
FLEX I/O-XT 8 RTD/thermocouple input module
x
2,046,720
4.88587E-07
—
1.48997E-07
1794-IT8
FLEX I/O 8 thermocouple input module
x
2,097,509
4.76756E-07
—
1.48947E-07
1794-IF2XOF2I
FLEX I/O 2 input/2 output analog module
x
8,464,844
1.18136E-07
—
1.4746E-07
1794-IF2XOF2IXT
(4)
FLEX I/O-XT 2 input/2 output analog module
x
6,317,918
1.5828E-07
—
1.47623E-07
1794-IE4XOE2XT/B
(4)
FLEX I/O-XT 4 input/2 output analog module
x
11,800,802
8.474E-08
—
1.47324E-07
1794-OE4/B
FLEX I/O 4 analog output module
18,433,610
5.42487E-08
—
1.47202E-07
1794-OE4XT/B
(4)
FLEX I/O-XT 4 analog output module
11,381,744
8.7860E-08
—
1.47337E-07
1794-OF4I
FLEX I/O 4 analog output module
23,884,409
4.18683E-08
—
1.47152E-07
Table 11 - PFD Calculations - 2-year for ControlLogix Component
Cat. No.
(1)
(2)
Description
61508
(2010)
Mean Time Between
Failure (MTBF)
(9)
λ
(10)
Calculated PFD
1oo1
Architecture
1oo2
Architecture
Содержание 1756-L6 Series
Страница 24: ...24 Rockwell Automation Publication 1756 RM001I EN P May 2012 Chapter 1 SIL Policy Notes ...
Страница 60: ...60 Rockwell Automation Publication 1756 RM001I EN P May 2012 Chapter 5 ControlLogix I O Modules Notes ...
Страница 76: ...76 Rockwell Automation Publication 1756 RM001I EN P May 2012 Chapter 6 FLEX I O Modules Notes ...
Страница 120: ...120 Rockwell Automation Publication 1756 RM001I EN P May 2012 Appendix C PFD Calculations for a SIL 2 System Notes ...
Страница 126: ...126 Rockwell Automation Publication 1756 RM001I EN P May 2012 Appendix D Checklists Notes ...
Страница 133: ...Allen Bradley Motors ...