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4.2
Safety-relevant characteristic data
Characteristic data
Safety category
Safety category
Performance Level (PL)
Safety Integrated Level (SIL)
Lifespan (TM) in years
Maximum switch-on time in months
PFD
(probability of a dangerous failure per hour) < 5,36 x 10
PFH
D
Max. system reaction time in
Attention!
In addition to the system reaction time of max. 40 ms, the reaction times of the safe AS-
interface sensor slave, of the sensor being used for monitoring, of the safe AS-interface
actuator slave and of the actuator used for this purpose must still be added. Please note
that additional reaction times may likewise arise through the configuration of the safety
monitor.
Notice!
Refer to the technical data for the slaves as well as to that for the sensors and actuators
for the reaction times to be added.
Attention!
The system reaction times of the daisy-chained AS-interface components are added up.
Subject to reasonable modifications due to technical advances.
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milliseconds
Value
Standard
4
EN 954-1
4
EN 13849-1:2006/PLe Cat 4
e
3
IEC 61508
20
EN 13849-1:2006/PLe Cat 4
12
IEC 61508
IEC 61508, EN 62061
-6
< 9,25 x 10
IEC 61508, EN 62061
-9
40
IEC 61508
© Pepperl+Fuchs, Printed in Germany
Internet http://www.pepperl-fuchs.com
AS-Interface
Spezifications
Tab. 4-4.
17
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