Specifications

Publication 1794-RM001F-EN-P - September 2011
Failure Estimates A-9
1794-TB3T Temperature Terminal Base Units
73,096,226
(2)
1.37E-08 9.66E-11
1794-TB3TS Temperature Terminal Base Units
75,763,399
(2)
1.32E-08 9.31E-11
1794-TBN Terminal Base Units 75,716.615 1.32E-08 9.32E-11
1794-TBNF Fused Terminal Base Units
4,812,320
(2)
2.08E-07 1.64E-09
1794-ACNR15XT ControlNet Redundant Media Adapter 8,223,684 1.22E-07 9.14E-10
1794-OB8EPXT 8 Protected Output Module 14,771,049 6.77E-08 4.93E-10
1794-IB16XT 16 Sink Input Module 35,587,189 2.81E-08 2.00E-10
1794-OB16PXT 16 Protected Output Module 26,709,401 3.74E-08 2.68E-10
1794-IB10XOB6XT 10 Input/6 Output Combo Module 22,202,487 4.50E-08 3.24E-10
1794-OW8XT 8 Relay Output Module 18,518,519 5.40E-08 3.90E-10
1794-IE4XOE2XT 4 Input/2 Output Analog Combo Module 11,800,802 8.47E-08 6.24E-10
1794-IE8XT 8 Input analog Module 14,041,000 7.12E-08 5.20E-10
1794-OE4XT 4 Output Analog Module 11,381,744 8.79E-08 6.48E-10
1794-IF2XOF2IXT 2 Input/2 Output Isolated Analog Combo Module 6,317,918 1.58E-07 1.21E-09
1794-IF4IXT 4 Isolated Input Analog Module 7,297,140 1.37E-07 1.04E-09
1794-IF4ICFXT 4 Isolated Input Analog Module 7,297,140 1.37E-07 1.04E-09
1794-OF4IXT 4 Isolated Output Analog Module 5,493,902 1.82E-07 1.42E-09
1794-IJ2XT 2 Ch. Frequency Counter Module 11,714,128 8.54E-08 6.29E-10
1794-IRT8XT 8 TC/RTD Input Analog Module 8,204,792 1.22E-07 9.16E-10
(1)
MTBF measured in hours.
(2)
Calculated using field-based values for components
(3)
λ = Failure Rate = 1 / MTBF
Table A.6 MTBF Field Data and Per Module PFH Estimates - T
1
= 5 years
Catalog Number: Description:
(MTBF)
(1)
λ
(3)
Estimated
PFH 1oo2
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