Subject to reasonable modifications due to technical advances. © Pepperl+Fuchs, Printed in Germany
19
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-0 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91 Internet http://www.pepperl-fuchs.com
Issue date: 17.4.2009
AS-Interface
Spezifications
Upon activation of safety light barrier S1-2, the relay safety output of safety moni-
tor SM1-2 is controlled.
Calculation of the AS-i relevant system reaction time:
t
System total a)
= t
R S1-2
+ t
R System
= 18ms + 40ms = 58ms
System configuration - example 1: Calculation of the system reaction time
AS-i 1
AS-i 2
S1-2
S1-1
A2-1
SM1-1
SM1-2
S2-1
AS-i Safety Monitor
AS-i Safety Monitor
M
AS-i Safety Monitor
SM2-1
M
M
I–
I1
1.13
ASI+
I+
I2
1.14
ASI–
I+
1.Y1
1.23
nc
I+
1.Y2
1.24
nc
I
1
Pwr
Fault
Out
1.Y1
1.Y2
I2
Prg
Run
Alarm
Prg
M
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