Siemens SIMATIC S7-400 Configuration And Use Manual page 35

Hardware Components
The hardware components of an S7 Distributed Safety include the following:
• F-capable CPU, e. g. CPU 416-2F
• Fail-safe I/O
In addition, the F-system can be expanded with standard components of the
S7-400.
Software Components
The software components of an S7 Distributed Safety include the following:
• Optional package on the programming device/ES for configuring and
programming the F-system
• Safety program in the F-CPU
Optional Package S7 Distributed Safety
S7 Distributed Safety is the configuration and programming software for the
S7 Distributed Safety fail-safe system. With S7 Distributed Safety, you receive the
following:
• Support for configuring the F-I/O in STEP 7 using HW Config
• Support for creating the safety program and integrating error detection functions
into the safety program
• F-library containing fail-safe application blocks that you can use in your safety
program.
Moreover, S7 Distributed Safety offers functions for comparing safety programs
and for assisting you with the system acceptance test.
Automation System S7-400 Configuration and Use
A5E00442711-02
CPUs of the S7-400
2-19