User Manual

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(ICSTT-RM449_EN_P) Issue 04:
PFH avg and PFD avg Data (AADvance Controller)
PFD Data
PFD Data PFD Data
PFD Data -
--
- 8 Hour MTTR
8 Hour MTTR8 Hour MTTR
8 Hour MTTR
The following tables provide the probability of failures upon demand for the energize
to action and de-energize to action Safety Instrumented Function (SIF) configurations.
The Manual Test Interval is as indicated
Table 2:
Table 2: Table 2:
Table 2: PFD Data for a SIF with MTI = 6 months
PFD Data for a SIF with MTI = 6 monthsPFD Data for a SIF with MTI = 6 months
PFD Data for a SIF with MTI = 6 months
Module Module Description PFDde PFDe
Single Dual Triple Single Dual Triple
T9110 Processor module 6.16E-5 2.43E-7 2.58E-7 7.88E-5 4.07E-7 4.32E-7
T9401 Digital input module, 24Vdc, 8
channel, isolated
2.25E-6 2.16E-7 2.16E-7 3.59E-6 2.27E-7 2.27E-7
T9402 Digital input module, 24Vdc, 16
channel, isolated
2.25E-6 2.16E-7 2.16E-7 3.59E-6 2.27E-7 2.27E-7
T9431 Analogue input module, 8
channel, isolated
2.25E-6 2.16E-7 2.16E-7 3.59E-6 2.27E-7 2.27E-7
T9432 Analogue input module, 16
channel, isolated
2.25E-6 2.16E-7 2.16E-7 3.59E-6 2.27E-7 2.27E-7
T9451 Digital output module, 24Vdc, 8
channel, isolated, commoned
7.67E-7 1.53E-6 2.18E-5 2.18E-7
T9481 Analogue output module, 3
channel, isolated
2.02E-6 3.96E-6 7.08E-5 1.93E-6
T9482 Analogue output module, 8
channel, isolated
2.02E-6 3.96E-6 7.08E-5 1.93E-6
Table 3:
Table 3: Table 3:
Table 3: PFD Data for a SIF with MTI = 1 Year
PFD Data for a SIF with MTI = 1 YearPFD Data for a SIF with MTI = 1 Year
PFD Data for a SIF with MTI = 1 Year
Module Module Description PFDde PFDe
Single Dual Triple Single Dual Triple
T9110 Processor module 1.20E-4 4.58E-7 5.15E-7 1.54E-4 7.74E-7 8.68E-7
T9401 Digital input module, 24Vdc, 8
channel, isolated
3.89E-6 4.28E-7 4.28E-7 6.02E-6 4.46E-7 4.47E-7
T9402 Digital input module, 24Vdc, 16
channel, isolated
3.89E-6 4.28E-7 4.28E-7 6.02E-6 4.46E-7 4.47E-7
T9431 Analogue input module, 8
channel, isolated
3.89E-6 4.28E-7 4.28E-7 6.02E-6 4.46E-7 4.47E-7
T9432 Analogue input module, 16
channel, isolated
3.89E-6 4.28E-7 4.28E-7 6.02E-6 4.46E-7 4.47E-7