Publication 1794-RM001G-EN-P - December 2011
A-2
Failure Estimates
1794-AENTRXT
10/100Mb Ethernet Redundant Communication Adapter
1,268,070
7.89E-07
1.45E-05
1794-OB8EPXT
8 Protected Output Module
14,771,049
6.77E-08
1.20E-06
1794-IB16XT
16 Sink Input Module
35,587,189
2.81E-08
4.95E-07
1794-OB16PXT
16 Protected Output Module
26,709,401
3.74E-08
6.60E-07
1794-IB10XOB6XT
10 Input/6 Output Combo Module
22,202,487
4.50E-08
7.94E-07
1794-OW8XT
8 Relay Output Module
18,518,519
5.40E-08
9.53E-07
1794-IE4XOE2XT
4 Input/2 Output Analog Combo Module
11,800,802
8.47E-08
1.50E-06
1794-IE8XT
8 Input analog Module
14,041,000
7.12E-08
1.26E-06
1794-OE4XT
4 Output Analog Module
11,381,744
8.79E-08
1.55E-06
1794-IF2XOF2IXT
2 Input/2 Output Isolated Analog Combo Module
6,317,918
1.58E-07
2.81E-06
1794-IF4IXT
4 Isolated Input Analog Module
7,297,140
1.37E-07
2.43E-06
1794-IF4ICFXT
4 Isolated Input Analog Module
7,297,140
1.37E-07
2.43E-06
1794-OF4IXT
4 Isolated Output Analog Module
5,493,902
1.82E-07
3.24E-06
1794-IJ2XT
2 Ch. Frequency Counter Module
11,714,128
8.54E-08
1.51E-06
1794-IRT8XT
8 TC/RTD Input Analog Module
8,204,792
1.22E-07
2.16E-06
(1)
MTBF measured in hours.
(2)
Calculated using field-based values for components
(3)
λ
= Failure Rate = 1 / MTBF
Table A.1 MTBF Field Data and Per Module PFD Estimates - T
1
= 1 year
Catalog Number:
Description:
(MTBF)
(1)
λ
(3)
Estimated PFD
1oo2
Table A.2 MTBF Field Data and Per Module PFD Estimates - T
1
= 2 years
Catalog Number:
Description:
(MTBF)
(1)
λ
(3)
Estimated
PFD 1oo2
1794-ACN15
ControlNet Single Media Adapter
8,223,684
1.22E-07
4.33E-06
1794-ACNR15
ControlNet Redundant Media Adapter
8,223,684
1.22E-07
4.33E-06
1794-AENT
10/100Mb Ethernet Communication Adapter
691,134
1.45E-06
5.92E-05
1794-AENTR
10/100Mb Ethernet Redundant Communication Adapter 1,268,070
7.89E-07
3.02E-05
1794-IB10XOB6
10 Input/6 Output Module
4,943,442
2.02E-07
7.27E-06
1794-IB16
16 Sink Input Module
4,105,090
2.44E-07
8.79E-06
1794-IE8
Analog Input Module
37,952,679
2.63E-08
9.28E-07
1794-IF2XOF2I
Isolated Analog Input/Output Module
25,296,960
3.95E-08
1.39E-06
1794-IF4I
Isolated Analog Input Module
11,746,343
8.51E-08
3.02E-06
1794-IJ2
Frequency Counter Module
2,418,321
4.14E-07
1.52E-05
1794-IP4
Pulse Counter Module
2,375,360
4.21E-07
1.55E-05
1794-IR8
RTD Input Module
6,191,655
1.62E-07
5.77E-06
1794-IRT8
TC/RTD/mV Input Module
1,182,438
8.46E-07
3.26E-05
Содержание FlexLogix 1794
Страница 1: ...FLEXI OSystemwithControlLogixforSIL2 Catalog Number Bulletin 1794 Reference Manual AB Drives ...
Страница 18: ...Publication 1794 RM001G EN P December 2011 1 14 SIL Policy Notes ...
Страница 22: ...Publication 1794 RM001G EN P December 2011 2 4 ControlLogix Communications ...
Страница 42: ...Publication 1794 RM001G EN P December 2011 3 20 FLEX I O Modules Notes ...
Страница 44: ...Publication 1794 RM001G EN P December 2011 4 2 General Requirements for Application Software Notes ...
Страница 46: ...Publication 1794 RM001G EN P December 2011 5 2 Technical SIL2 Requirements for the Application Program Notes ...
Страница 56: ...Publication 1794 RM001G EN P December 2011 A 10 Failure Estimates Notes ...
Страница 59: ...AB Drives ...