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SIL Safety Manual
Determined Safety Characteristics
To determine the safety characteristics, the following assumption is made:
Ambient conditions correspond to an average industrial environment.
Safety Integrity Level (SIL) according to EN 61508:2010 or
Performance Level (PL) according to EN ISO 13849-1:2008
Load ≤ 700 Ω
Characteristic
Value
Explanation
Demand mode
High/Low
High/Low demand mode
Device type
A
Operating
mode
4 … 20 mA
λtotal
103.2 FIT1)
Total failure rate
λS
101.7 FIT
Rate of safe failures
λD
1.5 FIT
Rate of dangerous failures
λDU
1.5 FIT
Rate of dangerous undetected failures
λSD
0 FIT
Rate of safe detected failures
λDD
0 FIT
Rate of dangerous detected failures
SFF
98.6 %
Fraction of non-hazardous failures
DC
0 % (no diagnostics)2)
MTTFD
221 years3)
Mean operating time until dangerous failure
CAT
1 (1oo1) or 3 (1oo2)
Category according to EN 13849-1
PL
c (1oo1) or e (1oo2)
Performance level according to EN 13849-1
SIL
3
Safety integrity level according to EN 61508
MTTR
72 h max. time to repair
Replacing a defective device by a replace-
ment device of the same model
Temperature
Max. 40 °C
Long-time average temperature
PFH/PFD Values
T1=1 a
T1=2 a
T1=3 a
PFD1oo1
6.6 x 10-6
(0.7 %)
1.3 x 10-5
(1.3 %)
2 x 10-5
(2 %)
PFH1oo1
(1/h)
1.5 x 10-9
(1.5 %)
1.5 x 10-9
(1.5 %)
1.5 x 10-9
(1.5 %)
PFD1oo2
6.6 x 10-7
(0.06 %)
1.3 x 10-6
(0.13 %)
2 x 10-6
(0.2 %)
PFH1oo2
(1/h)
1.5 x 10-10
(0.15 %)
1.5 x 10-10
(0.15 %)
1.5 x 10-10
(0.15 %)
T1 = Time interval between the functional tests of the safety function
% values in brackets = proportion of maximally permitted PFD or PFH value for SIL 3.
Summary of Contents for ProLine P224 P1 Series
Page 10: ...10 114 5 mm 111 5 mm 12 5 mm 112 5 mm 99 0 mm Maßzeichnung ...
Page 24: ...24 114 5 mm 111 5 mm 12 5 mm 112 5 mm 99 0 mm Dimension Drawing ...
Page 38: ...38 Dessin coté 114 5 mm 111 5 mm 12 5 mm 112 5 mm 99 0 mm ...
Page 52: ...52 114 5 mm 111 5 mm 12 5 mm 112 5 mm 99 0 mm Desenho Dimensional ...
Page 59: ...EX ...