Configuring F-Systems
6.2 Configuring the F-CPU
Safety Engineering in SIMATIC S7
6-2
System Manual, 04/2006, A5E00109529-05
6.2
6.2
Configuring the F-CPU
Configuration
The F-CPU is listed in the hardware catalog of
HW Config along with the other S7-300 and
S7-400 CPUs.
The F-CPU is configured according to the same scheme used for standard CPUs. Once the
F-CPU has been placed in the configuration table, you can access the configuration dialog
by selecting the Edit > Object Properties menu command or by double-clicking the F-CPU.
In the "Protection" tab, you must configure the protection level for the F-CPU.
The S7 Distributed Safety CPU also has a specific tab for F-properties called "F
Parameters"; this tab is not included for S7 F/FH systems.
Example of Configuring an F-CPU for S7 Distributed Safety
The "F Parameters" tab for a CPU 315F-2 DP is shown below.
S7 Distributed Safety automatically assigns the PROFIsafe addresses. The "Base for
PROFIsafe addresses" information is required for internal management of the PROFIsafe
addresses of the F-system. PROFIsafe addresses are used to uniquely identify the source
and destination.
In addition, the user reserves CPU resources (F-data areas, F function blocks, and F local
data) for the safety program. These resources cannot be used in the safety program or the
standard user program (reserved for automatically added F-blocks).
The parameters are explained in the
context-sensitive online help for the tab and in the S7
Distributed Safety Configuring and Programming manual.
