Safety in F-Systems
4.5 Password Protection for F-Systems
Safety Engineering in SIMATIC S7
System Manual, 04/2006, A5E00109529-05
4-7
4.5
4.5
Password Protection for F-Systems
Two Passwords
In addition to the standard password for the F-CPU or CPU, F-systems require a password
for the safety program.
The password for the F-CPU protects the F-systems from unauthorized downloads to the
F-CPU from the engineering system (ES) or programming device (PG).
The password for the safety program protects from unauthorized changes to the
configuration and parameter settings of the F-CPU and F-I/O.
Assigning Passwords
The user assigns the password for the F-CPU in the "Protection" tab in
HW Config when
assigning parameters for the F-CPU.
The user assigns the password for the safety program when programming/configuring the
safety program. Accordingly, a dialog box is displayed automatically when the safety
program is compiled the first time.
4.6
4.6
Acceptance Test of System
Who Performs the Acceptance Test?
As a general rule, the acceptance test is performed by independent experts.
Support when Preparing for Acceptance Test
When a system undergoes an acceptance test, all standards relevant to the specific
application must be checked for compliance.
The following special
STEP 7functions are available in SIMATIC Manager to aid the user in
checking for proper use of the F-system:
•
Compare safety programs
•
Print safety programs
All data relevant to the acceptance test of the F-system can be accessed in
SIMATIC
Manager and printed as needed.
User Actions
Actions that are undertaken by the user to prepare the system for the acceptance test
depend on the F-system that is used. For this reason, the procedures are described in the
relevant configuring and programming manuals for S7 Distributed Safety and S7 F/FH
systems under "System Acceptance Test."
