Pepperl+Fuchs VBG-PN-K30-DMD-S16-EV Manual page 23

AS-i 3.0 PROFINET Gateway with integr. Safety Monitor
Specifications - AS-i/PROFINET Gateways
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 = t
System total b)
System configuration - example 3: Calculation of the system reaction time
SM1-1
AS-i Safety Monitor
M
SM2-1
AS-i Safety Monitor
+ t + t
R S2-1 R System R A2-1
SM1-2
AS-i Safety Monitor
M
M
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
= 100ms + 40ms + 50ms = 190ms
S1-2
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