Siemens SIMATIC S7-1500 Manual page 31

Product overview
2.4 Firmware functions
Function
Integrated safety
Secure PG/HMI communi-
cation
Protection of confidential
configuration data
Integrity protection
Know-how protection
Copy protection
Access protection
Password provider
30
Description
With STEP 7 and WinCC, SIMATIC S7-1500 CPUs and ET
200 CPUs support innovated and standardized secure
PG/PC and HMI communication – referred to as Secure
PG/HMI communication for short.
You have the option of assigning a password for pro-
tecting confidential configuration data of the respective
CPU. This refers to data such as private keys that are
required for the proper functioning of certificate-based
protocols.
The CPUs feature integrity protection by default. Integri-
ty protection detects the following manipulations:
• To the engineering data on the SIMATIC memory
card
• To the engineering data during data transfer be-
tween TIA Portal and CPU
• To the engineering data during data transfer be-
tween HMI system and CPU
• To the encrypted firmware
The know-how protection protects user blocks against
unauthorized access and modifications.
Copy protection links user blocks with the serial number
of one or more SIMATIC memory cards or the serial
number of one or more CPUs. User programs cannot
run without the corresponding SIMATIC memory card or
CPU.
You can assign separate rights to different users via
authorization levels.
As an alternative to manual password entry, you can
link a password provider to STEP 7. A password provider
provides the following advantages:
• Convenient handling of passwords. STEP 7 automat-
ically reads in the password for the blocks. This
saves you time.
• Optimal block protection, since the users do not
know the password themselves.
Additional information
Communication function manual
(https://support.industry.siemens.co
m/cs/de/de/view/59192925/en)
S7-1500, ET 200MP system manual
(https://support.industry.siemens.co
m/cs/ww/en/view/59191792)
CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Equipment Manual, 07/2021, A5E40882737-AB