Response times
ET 200S Distributed I/O System - Fail-Safe Modules
204
Installation and Operating Manual, 08/2008, A5E00103686-07
Maximum response time of outputs:
The maximum response time of the EM 4 F-DI/3 F-DO DC24V PROFIsafe (with or without
fault) is equivalent to the maximum internal processing time T
max
.
The internal processing times of the electronic PM channel depend on the readback time
parameter setting (see table below).
Table D- 9
EM 4 F-DI/3 F-DO DC24V PROFIsafe: Internal Processing Times
EM 4 F-DI/3 F-DO DC24V PROFIsafe (electronic PM channel)
Programmed
Readback Time
Limit Frequency Minimum Internal Processing
Time T
min
Maximum Internal
Processing Time T
max
1 ms
37.0 Hz
4 ms
13 ms
5 ms
32.2 Hz
4 ms
14 ms
10 ms
27.7 Hz
4 ms
20 ms
50 ms
13.2 Hz
4 ms
32 ms
100 ms
7.9 Hz
4 ms
50 ms
200 ms
4.4 Hz
4 ms
75 ms
400 ms
2.3 Hz
4 ms
140 ms
Maximum response time of the EM 4 F-DO DC24V/2A PROFIsafe
The maximum response time of the EM 4 F-DO DC24V/2A PROFIsafe (with or without fault)
is equivalent to the maximum internal processing time T
max
.
The internal processing times of the electronic PM channel depend on the readback time
parameter setting (see table below).
Table D- 10 EM 4 F-DO DC24V/2A PROFIsafe: Internal Processing Times
EM 4 F-DO DC24V/2A PROFIsafe (electronic PM channel)
Programmed
Readback Time
Limit Frequency Minimum Internal Processing
Time T
min
Maximum Internal
Processing Time T
max
1 ms
32.3 Hz
4 ms
16 ms
5 ms
28.6 Hz
4 ms
20 ms
10 ms
25.0 Hz
4 ms
25 ms
50 ms
12.5 Hz
4 ms
55 ms
100 ms
7.7 Hz
4 ms
100 ms
200 ms
4.3 Hz
4 ms
150 ms
400 ms
2.3 Hz
4 ms
300 ms
Maximum response time of the EM 1 F-RO DC24V/AC24..230V/5A
The maximum response time of the EM 1 F-RO DC24V/AC24..230V/5A (with or without
fault) is equivalent to the total of:
●
the maximum response time of the fail-safe output used to activate the F-RO module
●
plus the relay switching or release time of the F-RO module
See also
Properties of the 4/8 F-DI 24 VDC PROFIsafe Digital Electronic Module (Page 105)