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System configuration - example 2: Calculation of the system reaction time
S1-1
AS-i 1
S2-1
AS-i 2
Upon locking of the EMERGENCY-OFF switch S2-1, the motor starter is control-
led via the safe AS-interface output of safety monitor SM2-1.
Calculation of the AS-interface-relevant system reaction time:
t
System total b)
20
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-0 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91
AS-i 3.0 EtherNet/IP Gateway with integrated Safety Monitor
SM1-1
AS-i Safety Monitor
M
SM2-1
AS-i Safety Monitor
= t
+ t
R S2-1
R System
SM1-2
AS-i Safety Monitor
M
+ t
= 100ms + 40ms + 50ms = 190ms
R A2-1
Spezifications
M
S1-2
M
A2-1
I –
I +
I +
I +
I 1
I 2
1.Y1
1.Y2
Run
Prg
Prg
1.13
1.14
1.23
1.24
ASI+
ASI–
nc
nc
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Internet http://www.pepperl-fuchs.com
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