Siemens SIRIUS 3RK3 Equipment Manual page 184

Operation
6.1 Response times
Formula
t
FRL
t
CYCLasi
Figure 6-15 Signal flow of example 3 for MSS 3RK3 Advanced No. 2
The reaction times of subsystem 2 are calculated as follows:
Figure 6-16
Reaction time "sensor - actuator"
in error-free operation "sensor -
actuator"
(in error-free operation)
Subsystem 2
Fault reaction time "sensor - ac‐
tuator";
for two-channel actuator wiring
identical to t
Subsystem 2
184
Description
Fault reaction time of the logic of the MSS 3RK3; for AS-i output signal identical to t
AS-i cycle time, max. 5 ms
Reaction times MSS 3RK3 Advanced No. 2 - example 3
RSA_1
t = (2x t ) + t
RSA_3-2 CYCLasi RL_2
t = t
FRSA_3-1 RSA_3-1
t = t
RL FRL
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
RL
6
+ t + t
OUT A