Siemens SIMATIC S7-1500R/H Equipment Manual page 19

Function
MRP (Media Redundancy
Protocol)
MRP interconnection
PROFIenergy
Integrated technology
Integrated closed-loop con­
trol functionality
Controlling, measuring and
position detection
Security Integrated
Know-how protection
Access protection
Integrity protection
Password provider
CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2022, A5E42011886-AD
Description
The Media Redundancy Protocol enables the configura­
tion of redundant networks. Redundant transmission
links (ring topology) ensure that an alternative commu­
nication path is made available if a transmission link fails.
Within the PROFINET ring, the H-CPUs assume the role of
the MRP Manager following appropriate project configur­
ation and all other devices in the ring assume the role of
the MRP clients.
The process MRP interconnection is an enhancement of
MRP and allows redundant coupling of two or more rings
with MRP in PROFINET networks. MRP interconnection is -
like MRP - specified in the standard IEC 62439-2 (Edition
3).
PROFIenergy is a PROFINET-based data interface for
switching off consumers centrally and with full coordina­
tion during pause times regardless of the manufacturer
or device type. Through this, the process should only be
provided with the energy that is absolutely required.
Most of the energy is saved by the process. The
PROFINET device itself only contributes a few watts to
the savings potential.
• PID Compact (continuous PID controller)
• PID 3Step (step controller for integrating actuators)
• PID Temp (temperature controller for heating and
cooling with two separate actuators)
• TO_BasicPos (control of a SINAMICS drive)
• SSI_Absolute_Encoder (control of position detection
and measuring function of the TM PosInput techno­
logy module)
The know-how protection protects user blocks against
unauthorized access and modifications.
You can use authorization levels to assign separate rights
to different user groups.
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 entry, you can link
a password provider to STEP 7. A password provider
offers the following advantages:
• Convenient handling of passwords. STEP 7 automatic­
ally imports the password for the blocks. This saves
you time.
• Optimum block protection because the users do not
know the password itself.
Product overview
3.4 Firmware functions
Additional information
PID Control Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/108210036)
STEP 7 online help
Redundant System S7‑1500R/H
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) Sys­
tem Manual
19