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Product overview
3.4 Firmware functions
Function
Integrated closed-loop con
trol functionality
Integrated safety
Know-how protection
Copy protection
Access protection
Integrity protection
Password provider
24
Description
•
PID Compact (continuous PID controller)
•
PID 3Step (step controller for integrating actuators)
•
PID Temp (temperature controller for heating and
cooling with two separate actuators)
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 num
ber of one or more CPUs. User programs cannot run
without the corresponding SIMATIC memory card or CPU.
You can use authorization levels to assign separate rights
to different users.
The CPUs feature an integrity protection function by
default. This helps to detect any manipulation of the
engineering data on the SIMATIC Memory Card or during
data transfer between the TIA Portal and the CPU, and to
check communication from a SIMATIC HMI system to the
CPU for possible manipulation of engineering data. The
user receives a corresponding message about manipula
tion of engineering data detected by the integrity protec
tion.
As an alternative to manual password input, you can con
nect a password provider to STEP 7. A password provider
offers the following advantages:
•
Convenient handling of passwords. STEP 7 reads in
the password automatically for the blocks. This saves
you time.
•
Optimum block protection because the users them
selves do not know the password.
Additional information
PID control
(https://support.industry.siemens.
com/cs/ww/en/view/108210036)
function manual
S7‑1500, ET 200MP
(https://support.automation.siemens.
com/WW/view/en/59191792) system
manual
CPU 1515-2 PN (6ES7515-2AN03-0AB0)
Equipment Manual, 11/2022, A5E46416198-AC
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