Run Times; Run Times Of The Fail-Safe Blocks - Siemens SIMATIC S7 F Manual

Fail-Safe Blocks
8.16

Run Times

8.16.1

Run Times of the Fail-Safe Blocks

The Principle of Run-Time Measurement
In order to obtain practical run times, all the fail-safe blocks were measured with a
dynamic circuit. In other words, the stored input variables of the blocks were
changed (dynamically) during measurement.
The run times in the table below are maximum values.
5XQ7LPHV RI WKH )DLO6DIH %ORFNV LQ V
Block Block
Name Number
Driver Blocks
F_M_AI6 FB 383
F_M_DI8 FB 384
F_M_DI24 FB 385
F_M_DO8 FB 388
F_M_DO10 FB 386
F_CH_DI FB 377
Fail-Safe Systems
A5E00085588-03
Function
F module driver for 6-channel analog input
•
One CPU/one F-I/O
•
Redundant CPU/one F-I/O
•
One CPU/redundant F-I/O
•
Redundant CPU/redundant F-I/O
F module driver for 8-channel digital input
•
One CPU/one F-I/O
•
Redundant CPU/redundant F-I/O
•
One CPU/redundant F-I/O
•
Redundant CPU/redundant F-I/O
F module driver for 24-channel digital input
•
One CPU/one F-I/O
•
Redundant CPU/one F-I/O
•
One CPU/redundant F-I/O
•
Redundant CPU/redundant F-I/O
F module driver for 8-channel digital output
•
One CPU/one F-I/O
•
Redundant CPU/redundant F-I/O
F module driver for 10-channel digital output
•
One CPU/one F-I/O
•
Redundant CPU/one F-I/O
•
One CPU/redundant F-I/O
•
Redundant CPU/redundant F-I/O
•
F channel driver for digital input
Maximum Run
Time with
Dynamically
Connected Inputs
V
in
465
520
740
814
518
570
1046
1155
789
847
1727
1830
488
542
519
570
1210
1598
51
8-141