Dual-Channel Safety Application, Duration Of Use: 20 Years; Table 16: Safety Parameters For Dual-Channel Safety Application - 20 Years - WAGO 8FDI 24V PROFIsafe 750-662/000-004 Manual

WAGO I/O System
750-662/000-004 8FDI 24V PROFIsafe
3.6.6.2

Dual-Channel Safety Application, Duration of Use: 20 Years

Table 16: Safety Parameters for Dual-Channel Safety Application – 20 Years
Maximum safety integrity level
per IEC 62061
Maximum safety integrity level
per IEC 61508
Maximum performance level
per ISO 13849-1
Duration of use
Probability of failure
PFD,* duration of use:
20 years (low demand
mode) (IEC 61508)
Probability of failure
PFH,* duration of use:
20 years (high demand
mode) (IEC 61508)
Hardware fault tolerance HFT with dual-channel
application (IEC 61508/ ISO 13849-1)
DC (Diagnostic Coverage Level)
AVG
MTTFd (Mean Time To Dangerous Failure)
*)
PFD: Probability of Failure on Demand
PFH: Probability of Dangerous Failure per Hour
for 1 dual-channel
input (input to fieldbus)
for 1 dual-channel
input (input to fieldbus)
Version 1.0.0, valid from HW/SW Version 01/01
Device Description
SIL 3
SIL 3
Cat. 4/PL e
20 years
2.29 × 10 (2.29 % of the total
−5
PFD of 10 at SIL3)
−3
2.63 × 10 (0.26 % of the total
−10
PFH of 10 at SIL3)
−7
1 (1 error in the application
does not yet lead to a failure of
the safety equipment)
96 %
> 100 years
31
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