User Manual Owner manual

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 297
PFD and PFH Calculations for a SIL 2 System Appendix E
PFD Calculations with 24-hour MTTR
The PFD calculations in Table 70 are calculated for a 1-year proof test interval
(8760 hours) and are specific to1715 I/O components in ControlLogix systems.
De-energize-to-trip 1-year Proof Test Interval
Table 70 - De-energize-to-trip 1-year Proof Test Interval
MTTR 24 Hours PTI 1.0 Years Simplex Configuration Duplex Configuration
Cat No. Series Firmware Version Description MTBF λs λdu λdd SFF tce' HFT PFHde PFDde STR β βd tce' tge' HFT PFHde PFDde Arch STR
1715-
AENTR
A2.001EtherNet
adapter
dual
module
841,973 8.43E-07 9.82E-09 3.34E-07 97.74% N/A N/A N/A N/A N/A 1.0% 1.0% 1.28E+02 9.34E+01 1 3.45E-09 5.13E-07 1oo2D 8.43E-08
1715-
IB16D
A 2.001 16-
channel
digital
input
module
3,535,791 2.06E-07 6.57E-10 7.60E-08 99.77% 6.16E+01 0 7.48E-10 5.12E-06 2.82E-07 1.0% 0.5% 3.43E+01 3.08E+01 1 4.77E-10 4.36E-07 1oo2D 2.06E-09
1715-
IF16
A 2.001 16-
channel
analog
input
module
3,535,791 2.06E-07 6.57E-10 7.60E-08 99.77% 6.16E+01 0 7.48E-10 5.12E-06 2.82E-07 1.0% 0.5% 3.43E+01 3.08E+01 1 4.77E-10 4.36E-07 1oo2D 2.06E-09
1715-
OB8DE
A 2.001 16-
channel
digital
output
module
9,677,085 7.94E-08 2.96E-10 2.36E-08 99.26% 7.82E+01 1 7.66E-10 1.85E-06 1.03E-07 1.0% 1.0% N/A N/A 1 1.53E-09 3.69E-06 2oo2 7.94E-10
1715-
OF8I
A 2.001 16-
channel
analog
output
module
5,446,179 1.34D-07 5.50E-10 4.96E-08 99.51% 7.20E+01 1 8.90E-10 3.61E-06 1.83E-07 1.0% 0.5% N/A N/A 1 1.78E-09 7.19E-06 2002 1.34E-09