Siemens SIMATIC S7-1500 Manual page 27

Function
Integrated safety
Know-how protection
Copy protection
Access protection
Integrity protection
Password provider
CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Manual, 12/2017, A5E40882737-AA
Description
The know-how protection protects user blocks against
unauthorized access and modifications.
Copy protection links user blocks to the serial number
of the SIMATIC memory card or to the serial number of
the CPU. User programs cannot run without the corre-
sponding SIMATIC memory card or CPU.
You can assign separate rights to different users via
authorization levels.
The CPUs have integrity protection by default. Integrity
protection detects possible manipulation of engineering
data on the SIMATIC memory card or during the data
transfer between TIA Portal and CPU.
Integrity protection also checks the communication
from a SIMATIC HMI system to the CPU for possible
manipulation of engineering data.
If integrity protection detects manipulation of engineer-
ing data, the user receives a corresponding message.
As an alternative to manual password entry, you can
link a password provider to STEP 7. A password pro-
vider provides the following advantages:
Convenient handling of passwords. STEP 7 auto-
•
matically reads in the password for the blocks. This
saves you time.
Optimal block protection, since the users do not
•
know the password themselves.
Product overview
2.3 Firmware functions
Additional information
S7-1500, ET 200MP system manual
(http://support.automation.siemens.c
om/WW/view/en/59191792)
27