Siemens SIMATIC Operating Instructions Manual page 157

Maximum Response Time of the Outputs of the 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic
Module
The maximum response time of the outputs of the 4/8 F-DI/4 F-DO DC24V/2A
PROFIsafe electronic module (in the fault-free case and when a fault occurs) corresponds to
the maximum internal preprocessing time T
The internal preprocessing times depend on the assigned readback time (see table below).
Table D-4
4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic Module
Readback Time
Maximum Response Time of Outputs of the F-Switch PROFIsafe Electronic Module
The maximum response time of the outputs of the F-Switch PROFIsafe electronic module
(with or without fault) is equivalent to the maximum internal preprocessing time T
The internal preprocessing times depend on the assigned readback time (see table below).
Table D-5
F-Switch PROFIsafe Electronic Module
Readback Time
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic Module: Internal Preprocessing Times
Assigned Limit Frequency
1 ms 62.5 Hz
5 ms 50.0 Hz
10 ms 40.0 Hz
50 ms 15.4 Hz
100 ms 8.7 Hz
200 ms 4.6 Hz
400 ms 2.4 Hz
F-Switch PROFIsafe Electronic Module: Internal Preprocessing Time
Assigned Limit Frequency
3 ms 45.4 Hz
.
max
Minimum Internal
Preprocessing Time T
min
4 ms
4 ms
4 ms
4 ms
4 ms
4 ms
4 ms
Minimum Internal
Preprocessing Time T
min
4 ms
Response Times
D.1 Response Times
Maximum Internal
Preprocessing Time T
max
13 ms
14 ms
17 ms
30 ms
46 ms
71 ms
135 ms
.
max
Maximum Internal
Preprocessing Time T
max
11 ms
157