Fehlersicherer Betrieb Bei 1Oo1-Auswertung - Siemens KP8 Betriebsanleitung

Stromversorgung
Parameter
Hardware Fault Tolerance
Classification
Architecture
Failure mode
•
•
Failure Mode Diagnostic
•
•
Diagnostic Coverage
Diagnostic test interval
Safe Failure Fraction

Fehlersicherer Betrieb bei 1oo1-Auswertung

● Entsprechend IEC 61508
● Entsprechend IEC 13849-1
● Entsprechend EN 954-1
KP8, KP8F, KP32F
Betriebsanleitung, 11/2011, A5E03088480-02
Detected
Undetected
Detected
Undetected
Systematic Capability
Mode of operation
Meantime to Restoration (MTTR)
Probability of a dangerous failure per hour
(PFH)
Probability of a dangerous failure on demand
(PFD)
Safe Failure Fraction (SFF)
Diagnostic test interval
Proof Test Interval
Lifetime
Meantime to Failure (MTTF
Meantime to Restoration (MTTR)
Diagnostic Coverage (DC
Performance Level
Category
Kategorie
Wert
0
A
1oo1D
Dangerous process value
22.50 FIT
•
0.22 FIT
•
No error signaling or no safe
values
0 FIT
•
0 FIT
•
99.03 %
< 10 ms
99.84 %
SIL3
High and low demand mode
100 h
5.95 × 10
2.61 × 10
99.19 %
15 ms
10 y
10 y
) 560 y
d
100 h
) 98.90 %
avg
d
3
3
Technische Angaben
9.4 Fehlersicherer Betrieb
Kommentar
–
–
–
Due to failures in the power supply
Calculation according
IEC 13849-1, CAT4
–
Voltage monitoring in hardware
–
1/h
–10
–5
111