Siemens SIMATIC S7-1500 Manual page 23

Function
Integrated closed-loop
control functionality
Integrated safety
Know-how protection
Copy protection
Access protection
Integrity protection
Password provider
CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0)
Manual, 12/2017, A5E40898375-AA
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 to the serial number of
the SIMATIC memory card or to the serial number of the
CPU. User programs cannot run without the correspond-
ing SIMATIC memory card or CPU.
You can use authorization levels to assign separate
rights to different users.
The CPUs dispose of integrity protection by default.
Integrity protection identifies possible manipulations of
engineering data on the SIMATIC memory card or during
data transfer between TIA Portal and CPU.
Integrity protection also checks the communication from
a SIMATIC HMI system to the CPU for possible manipu-
lations of engineering data.
If integrity protection identifies the manipulation of
engineering data, the user receives a corresponding
message.
As an alternative to manual password input you can
connect a password provider to STEP 7. A password
provider offers the following advantages:
Convenient handling of passwords. STEP 7 reads
•
the password automatically for the blocks. This saves
you time.
Optimum block protection because the users do not
•
know the password itself.
Product overview
2.3 Firmware functions
Additional information
PID control function manual
(https://support.industry.siemens.co
m/cs/ww/en/view/108210036)
S7-1500, ET 200MP system manual
(http://support.automation.siemens.c
om/WW/view/en/59191792)
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