Siemens SIMATIC S7-1500R/H User manual

EQUIPMENT MANUAL
CPU 1515R-2 PN
Edition
S7-1500R/H
support.industry.siemens.com
6ES7515-2RN03-0AB0
11/2022
SIMATIC

Introduction 1
Safety information 2
Product overview 3
Connecting 4
Interrupts, diagnostics, error
messages and system events 5
Technical specifications 6
Dimension drawing A
SIMATIC
S7-1500R/H
CPU 1515R-2 PN
(6ES7515-2RN03-0AB0)
Equipment Manual
11/2022
A5E42009914-AD

Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E42009914-AD
Ⓟ 10/2022 Subject to change
Copyright © SiemensAG 2018 - 2022.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of SiemensAG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

4
1 Introduction........................................................................................................................................ 5
1.1 S7-1500R/H Documentation Guide.................................................................................... 6
1.1.1 Information classes S7-1500R/H........................................................................................ 6
1.1.2 SIMATIC Technical Documentation.................................................................................... 7
2 Safety information.............................................................................................................................. 9
2.1 Security information......................................................................................................... 9
3 Product overview................................................................................................................................ 10
3.1 New functions.................................................................................................................. 10
3.2 Configuration and operating principle............................................................................... 13
3.3 Hardware properties......................................................................................................... 14
3.4 Firmware functions........................................................................................................... 17
3.5 Operator controls and display elements............................................................................. 19
3.5.1 Front view of the CPU with closed front panel................................................................... 19
3.5.2 Front view of the CPU without front panel and bottom view.............................................. 22
3.5.3 Rear view of the CPU......................................................................................................... 23
3.6 Operating mode buttons................................................................................................... 24
4 Connecting......................................................................................................................................... 26
4.1 Terminal assignment........................................................................................................ 26
5 Interrupts, diagnostics, error messages and system events.............................................................. 30
5.1 Status and error display of the CPU.................................................................................... 30
6 Technical specifications...................................................................................................................... 35
A Dimension drawing............................................................................................................................ 44
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD
Table of contents

Introduction 1
Purpose of the documentation
This manual supplements the system manual of the S7-1500R/H redundant system and the
function manuals. This manual contains a description of the module-specific information. The
system-related functions are described in the system manual. All system-spanning functions
are described in the function manuals.
The information provided in this manual and the system manual enables you to commission
the CPU1515R-2PN.
Conventions
STEP7: In this documentation, "STEP7" is used as a synonym for all versions of the
configuration and programming software "STEP7 (TIA Portal)".
Please also observe notes marked as follows:
NOTE
A note contains important information on the product described in the documentation, on
the handling of the product or on the section of the documentation to which particular
attention should be paid.
Recycling and disposal
For environmentally friendly recycling and disposal of your old equipment, contact a certified
electronic waste disposal company and dispose of the equipment according to the applicable
regulations in your country.
Industry Mall
The Industry Mall is the catalog and order system of Siemens AG for automation and drive
solutions on the basis of Totally Integrated Automation (TIA) and Totally Integrated Power
(TIP).
You can find catalogs for all automation and drive products on theInternet
(https://mall.industry.siemens.com).
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1.1 S7-1500R/H Documentation Guide
1.1.1 Information classes S7-1500R/H
The documentation for the redundant S7-1500R/H system is arranged into three areas.
This arrangement enables you to access the specific content you require.
You can download the documentation free of charge from the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109742691).
Basic information
The System Manual and Getting Started describe in detail the configuration, installation,
wiring and commissioning of the redundant S7-1500R/H system.
The STEP7 online help supports you in the configuration and programming.
Examples:
•Getting Started S7-1500R/H
•System manual S7-1500R/H
•Online help TIA Portal
Device information
Equipment manuals contain a compact description of the module-specific information, such
as properties, wiring diagrams, characteristics and technical specifications.
Examples:
•Equipment Manuals CPUs
•Equipment Manuals Power Supply Modules
General information
The function manuals contain detailed descriptions on general topics relating to the
redundant S7-1500R/H system.
Examples:
•Function Manual Diagnostics
•Function Manual Communication
•Function manual Structure and Use of the CPU Memory
•Function Manual Cycle and Response Times
•PROFINET Function Manual
Product Information
Changes and supplements to the manuals are documented in a Product Information. The
Product Information takes precedence over the device and system manuals.
You can find the latest Product Information on the redundant S7-1500R/H system on the
Internet. (https://support.industry.siemens.com/cs/ww/en/view/109742691)
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Introduction
1.1 S7-1500R/H Documentation Guide

Manual Collection S7-1500/ET200MP
The Manual Collection S7-1500/ET200MP contains the complete documentation on the
redundant S7-1500R/H system gathered together in one file.
You can find the Manual Collection on the Internet.
(https://support.industry.siemens.com/cs/ww/en/view/86140384)
SIMATICS7-1500 comparison list for programming languages
The comparison list contains an overview of which instructions and functions you can use for
which controller families.
You can find the comparison list on the Internet.
(https://support.industry.siemens.com/cs/ww/en/view/86630375)
1.1.2 SIMATIC Technical Documentation
Additional SIMATIC documents will complete your information. You can find these
documents and their use at the following links and QR codes.
The Industry Online Support gives you the option to get information on all topics. Application
examples support you in solving your automation tasks.
Overview of the SIMATIC Technical Documentation
Here you will find an overview of the SIMATIC documentation available in Siemens Industry
Online Support:
Industry Online Support International
(https://support.industry.siemens.com/cs/ww/en/view/109742705)
Watch this short video to find out where you can find the overview directly in Siemens
Industry Online Support and how to use Siemens Industry Online Support on your mobile
device:
Quick introduction to the technical documentation of automation products per
video (https://support.industry.siemens.com/cs/us/en/view/109780491)
YouTube video: Siemens Automation Products - Technical Documentation at a
Glance (https://youtu.be/TwLSxxRQQsA)
mySupport
With "mySupport" you can get the most out of your Industry Online Support.
Registration You must register once to use the full functionality of "mySupport". After registra
tion, you can create filters, favorites and tabs in your personal workspace.
7
Introduction
1.1 S7-1500R/H Documentation Guide
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD

Support requests Your data is already filled out in support requests, and you can get an overview of
your current requests at any time.
Documentation In the Documentation area you can build your personal library.
Favorites You can use the "Add to mySupport favorites" to flag especially interesting or fre
quently needed content. Under "Favorites", you will find a list of your flagged
entries.
Recently viewed
articles
The most recently viewed pages in mySupport are available under "Recently viewed
articles".
CAx data The CAx data area gives you access to the latest product data for your CAx or CAe
system. You configure your own download package with a few clicks:
• Product images, 2D dimension drawings, 3D models, internal circuit diagrams,
EPLAN macro files
• Manuals, characteristics, operating manuals, certificates
• Product master data
You can find "mySupport" on the Internet. (https://support.industry.siemens.com/My/ww/en)
Application examples
The application examples support you with various tools and examples for solving your
automation tasks. Solutions are shown in interplay with multiple components in the system -
separated from the focus on individual products.
You can find the application examples on the Internet.
(https://support.industry.siemens.com/cs/ww/en/ps/ae)
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Introduction
1.1 S7-1500R/H Documentation Guide

Safety information 2
2.1 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the internet if and to the extent such a connection is necessary
and only when appropriate security measures (e.g. firewalls and/or network segmentation)
are in place.
For additional information on industrial security measures that may be implemented, please
visit (https://www.siemens.com/industrialsecurity).
Siemens' products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends that product updates are applied as soon as they are
available and that the latest product versions are used. Use of product versions that are no
longer supported, and failure to apply the latest updates may increase customers' exposure to
cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed visit (https://www.siemens.com/cert).
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10
Product overview 3
3.1 New functions
This section contains an overview of the most important new firmware functions of the CPU
compared with the predecessor version CPU (V2.9).
New functions of the CPU in firmware version V3.0
New functions Customer benefits Where can I find information?
Integrated work memory for program and data
expanded
The expansion of the integrated work
memory allows you to implement larger
and more extensive applications with the
CPUs.
Section Technical specifications
Data block functions As of FW version V3.0, the instructions for
the data block functions are supported:
• CREATE_DB (create data block)
• READ_DBL (read from data block in the
load memory)
• WRIT_DBL (write to data block in the
load memory)
• DELETE_DB (delete data block)
STEP 7 online help
Network Management Protocol SNMP:
A simple configuration option is available for
use of SNMP services. For new configurations,
this is disabled by default in accordance with
"Security-by-Default".
Can be enabled/disabled in the CPU prop
erties. Community strings can be con
figured.
Communication Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/59192925)
Trace: The S7-1500 CPU supports up to 64 con
figured signals per trace.
Number of configurable signals per trace
extended
Using the Trace and Logic Analyz
er Function Function Manual
(http://support.automation.
siemens.
com/WW/view/en/64897128)
New functions of the CPU in firmware version V2.9
New functions Customer benefits Where can I find information?
Influence switchover time
of switched S1 devices
As of FW version V2.9, you can influence the
switchover time between disconnection and return of
switched S1 devices after a failure/STOP of the primary
CPU.
This function offers the following advantages:
• Optimization of the switchover time between dis
connection and return of switched S1 devices
PROFINET Function Manual
(http://support.automation.siemens.
com/WW/view/en/49948856)

New functions Customer benefits Where can I find information?
MRP interconnection The MRP interconnection procedure is an extension of
MRP. MRP interconnection enables the redundant
coupling of 2 or more rings with MRP in PROFINET net
works.
MRP interconnection offers the following advantages:
• When setting up redundant network topologies,
there is no limitation to the maximum number of
devices of 50 devices in a ring.
• Monitoring of larger topologies with ring redund
ancy.
PROFINET Function Manual
(http://support.automation.siemens.
com/WW/view/en/49948856)
Simulation of R/H-CPUs PLCSIM Advanced V4.0 supports simulation of R/H-
CPUs
• Virtual commissioning of machines with R/H-CPUs
in a system
• Automatic testing of the STEP7 user program
The simulation offers the following advantages:
• Early error detection and risk minimization
• Reduced response times
• No hardware costs
S7-PLCSIM Advanced Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/109773484)
OB 72 (CPU redundancy
error)
As of FW version V2.9, the operating system calls
OB72 on further events:
• The R/H-system has entered RUN-Redundant sys
tem state and the synchronization of the two R/H-
CPUs is possible redundantly.
• The R/H-system has entered RUN-Redundant sys
tem state, but the synchronization of the two R/H-
CPUs is not possible redundantly.
• The R/H-system is still in RUN-Redundant system
state and the synchronization of the two R/H-CPUs
is possible redundantly now or again.
• The R/H-system is still in RUN-Redundant system
state, but the synchronization of the two R/H-CPUs
is no longer possible redundantly.
"RH_CTRL" instruction As of FW version V2.9, the "RH_CTRL" instruction sup
ports additional functions:
• Request SYNCUP
• Switch primary CPU to STOP mode (only in RUN-
Redundant system state)
• Switch backup CPU to STOP mode
S7-1500R/H System Manual
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
Instructions for recipe
phases
As of FW version V2.9, the instructions for recipe
phases supports:
• RecipeExport (export recipe)
• RecipeImport (import recipe)
Technology objects
TO_BasicPos and
SSI_Absolute_Encoder
Technology object "TO_BasicPos"
You use the "TO_BasicPos" instruction to cyclically con
trol a SINAMICS drive with the technology for SINAM
ICS S/G/V basic positioners.
Technology object SSI_Absolute_Encoder
You use the "SSI_Absolute_Encoder" instruction to con
trol position detection and measuring functions of the
TMPosInput technology module via the user program.
Online help for STEP 7
11
Product overview
3.1 New functions
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
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New functions of the CPU in firmware version V2.8
New functions Customer benefits Where can I find information?
Download modified user
program in RUN-Redund
ant system state
You can download a modified user program into the
R/H CPUs in the RUN-Redundant system state.
Advantage: The redundant system will remain consist
ently in the RUN-Redundant system state during the
change to the user program. The system state will not
switch to RUN-Rolo or SYNCUP.
Backing up the configura
tion of the S7-1500R/H
redundant system in
runtime
You do not have to interrupt the process during a
backup while the plant is running.
Uninterrupted plant operation avoids high restart and
material costs.
Switched S1 device The "Switched S1 device" function of the CPU enables
operation of standard IO devices in the S7-1500R/H
redundant system.
Testing with breakpoints When testing with breakpoints, you run a program
from breakpoint to breakpoint in the STARTUP (startup
OB) or RUN-Solo system state. Testing with breakpoints
provides you with the following advantages:
• Testing SCL and STL program code with the help of
breakpoints
• Localization of logic errors step by step
• Simple and quick analysis of complex programs pri
or to actual commissioning
• Recording of current values within individual
executed loops
• Using breakpoints for program validation is also
possible in SCL or STL networks within LAD/FBD
blocks.
S7-1500R/H System Manual
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
PID controller PID controllers are built into all R/H‑CPUs as standard.
PID controllers measure the actual value of a physical
variable, for example, temperature or pressure, and
compare the actual value with the setpoint. Based on
the resulting error signal, the controller calculates a
manipulated variable that causes the process value to
reach the setpoint as quickly and stably as possible.
The PID controllers offer you the following advantages:
• Simple configuration and programming through
integrated editors and blocks
• Simple simulation, visualization, commissioning
and operation via PG and HMI
• Automatic calculation of the control parameters
and tuning during operation
• No additional hardware and software required
• S7-1500R/H System Manual
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
• PID Control Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/108210036)
Alarms in the user program Alarms enable you to display events from process exe
cution in the S7-1500R/H redundant system and to
quickly identify, accurately locate, and correct errors.
Diagnostics Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/59192926)
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Product overview
3.1 New functions

Additional information
You can find an overview of all new functions, improvements and revisions in the respective
firmware versions on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109478459).
3.2 Configuration and operating principle
Structure
The S7-1500R redundant system consists of the following components:
•Two CPUs of the type CPU1515R‑2PN
•Two SIMATIC memory cards
•PROFINET cable (redundancy connections, PROFINET ring)
•IO devices
•Load power supply (optional)
You mount the CPUs on a common mounting rail or spatially separated on two separate
mounting rails. You connect the two CPUs and the IO devices in a PROFINET ring via the
PROFINET cable.
12
3
4
1
3
5
5
① Optional load current supply
② First CPU
③ Mounting rail with integrated DIN rail profile
④ Second CPU
⑤ PROFINET cable (redundancy connections, PROFINET ring)
Figure 3-1Configuration example for S7‑1500R
13
Product overview
3.2 Configuration and operating principle
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD

NOTE
Standard rail adapter
You mount the CPUs on a standardized 35mm rail using the standard rail adapter.
You will find information on mounting the standard rail adapter in the S7‑1500R/H redundant
system (https://support.industry.siemens.com/cs/ww/en/view/109754833) System Manual.
Principle of operation
One of the two CPUs in the redundant system takes on the role of CPU for process control
(primary CPU). The other CPU takes on the role of the following CPU (backup CPU). The
assigned role of the CPUs can change during operation. Synchronization of all relevant data
between primary CPU and backup CPU ensures fast switching between CPUs in the event of a
primary CPU failure. If the primary CPU fails, the backup CPU retains control of the process as
the new primary CPU at the point of interruption.
The redundancy connections are the PROFINET ring with MRP. The CPUs are synchronized via
a PROFINET ring.
Additional information
You can find a detailed description of the operation and design of the CPUs in the system
manual Redundant System S7‑1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
3.3 Hardware properties
Article number
6ES7515-2RN03-0AB0
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Product overview
3.3 Hardware properties

View of the module
The figure below shows the CPU1515R‑2PN.
Figure 3-2CPU1515R‑2PN
NOTE
Protective film
Note that there is a removable protective foil on the display when the CPUs are delivered.
Properties
CPU1515R‑2PN has the following technical properties:
Property Description Additional information
CPU display All CPUs of the redundant system S7 1500R/H have a dis
play with plain text information. The display provides
you with diagnostic messages as well as information
about the article number, the firmware version and the
serial number of the CPU.
You can also view and assign the IP addresses, the
PROFINET device name and the redundancy ID of the
CPU. The system IP address can be viewed via STEP7 but
not in the display.
In addition to the functions listed here, a large number
of other functions are available on the display. These
additional functions are described in the SIMATIC S7
1500 Display Simulator.
• S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
system manual
• SIMATICS7‑1500 Display Simulat
or
(https://support.industry.siemens.
com/cs/ww/en/view/109761758)
15
Product overview
3.3 Hardware properties
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
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Property Description Additional information
Supply voltage The 24VDC supply voltage is fed via a 4-pin plug located
on the front of the CPU.
• Section Connecting (Page 26)
• S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
system manual
PROFINETIO
PROFINETIO interface
(X1P1R and X1P2R)
The CPU has an X1 interface with two ports (X1P1R and
X1P2R).
• You use the PROFINETIO interface X1 (default set
tingP1R) to configure the PROFINET ring with the
two CPUs and the IO devices.
• You use the PROFINETIO interface X1 (default setting
P2R) to establish the connection between the two R-
CPUs within the PROFINET ring.
In the PROFINET ring, the synchronization frames
between the CPUs are transmitted via the following
connections:
– The direct connection (X1P2R)
– The indirect connection (X1P1R) via the IO
devices
• The interface supports PROFINETIO RT (Real-Time)
and PROFINET basic functionality.
Basic PROFINET functionality comprises:
– HMI communication
– Communication with the configuration system
– Communication with a higher-level network
(backbone, router, Internet)
– Communication with another machine or auto
mation cell
PROFINET interface (X2P1) The CPU has an X2 interface with one port (X2P1).
The interface supports PROFINET basic functionality.
Operation of the CPUs as IO
controllers
IO controller:
As IO controllers the CPUs address the following con
figured IO devices:
• IO devices with S2 system redundancy within the
PROFINET ring
• IO devices with S2 system redundancy that are
decoupled from the PROFINET ring via a switch
• Standard IO devices (switched S1 devices)
Standard IO devices usually do not support H-
SyncForwarding.
To avoid a cycle time increase when the PROFINET
ring is interrupted, integrate the standard IO devices
behind a switch and not in the PROFINET ring.
• S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
system manual
• Function manual PROFINET
(https://support.industry.siemens.
com/cs/ww/en/view/49948856)
H-Sync Forwarding
H-Sync Forwarding enables a PROFINET device with MRP to forward synchronization data
(synchronization frames) of an S7-1500R redundant system only within the PROFINET ring.
16 CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
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Product overview
3.3 Hardware properties

In addition, H-SyncForwarding forwards the synchronization data even during
reconfiguration of the PROFINET ring. H-SyncForwarding avoids a cycle time increase if the
PROFINET ring is interrupted.
NOTE
Support of H-SyncForwarding
The technical specifications typically state whether a PROFINET device supports
H‑SyncForwarding.
The GSD file will also indicate whether the device supports H‑SyncForwarding. The device
supports H‑SyncForwarding when the "ApplicationClass" attribute contains the
"HighAvailability" token.
You will find more information on H-Sync Forwarding in the system manual S7-1500R/H
redundant system (https://support.industry.siemens.com/cs/ww/en/view/109754833).
Accessories
You can find information on the topic of "Accessories/spare parts" in the system manual for
S7-1500R/H redundant system
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
3.4 Firmware functions
Functions
CPU1515R‑2PN supports the following firmware functions:
Function Description Additional information
CPU redundancy There are two duplicate CPUs that synchronize their data
via redundancy connections within a PROFINET ring. If
one of the CPUs fails, the other CPU retains control of the
process.
S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) sys
tem manual
Integrated system
diagnostics
The system automatically generates the messages for the
system diagnostics and outputs these messages via a
programming device/PC, HMI device or the integrated
display. System diagnostics information is also available
when the CPUs are in operating state STOP.
Function manual Diagnostics
(https://support.industry.siemens.
com/cs/ww/en/view/59192926)
Integrated trace
functionality
Trace functionality supports you in troubleshooting
and/or optimizing the user program.
You record device tags and evaluate the recordings with
the trace and logic analyzer function. Tags are, for
example, drive parameters or system and user tags of a
CPU.
Trace and logic analyzer functions are suitable for monit
oring highly dynamic processes.
Note: Note that the S7-1500R/H redundant system sup
ports recording of measurements. However, saving the
measurements to the SIMATIC memory card is not sup
ported.
Function manual Using the trace and
logic analyzer function
(https://support.industry.siemens.
com/cs/ww/en/view/64897128)
17
Product overview
3.4 Firmware functions
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD

Function Description Additional information
PROFINETIO
System redundancy S2 IO-Devices with S2 system redundancy enable uninter
rupted operation during a primary backup switchover.
If the role of the CPUs changes, the new primary CPU
takes over the PROFINETIO communication.
• S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
system manual
• Function manual PROFINET
(http://support.automation.
siemens.
com/WW/view/en/49948856)
Switched S1 device The switched S1 device function of the CPU enables
operation of standard IO devices in the S7‑1500R/H
redundant system.
S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) sys
tem manual
RT (real time) RT prioritizes PROFINETIO frames over standard frames.
This ensures the required determinism in the automation
technology. In this process the data is transferred via pri
oritized Ethernet frames.
MRP (Media Redundancy
Protocol)
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 R-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.
MRP interconnection 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 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.
Function manual PROFINET
(http://support.automation.siemens.
com/WW/view/en/49948856)
Integrated technology
Integrated closed-loop con
trol functionality
• PID Compact (continuous PID controller)
• PID 3Step (step controller for integrating actuators)
• PID Temp (temperature controller for heating and
cooling with two separate actuators)
Function manual PID Control
(https://support.industry.siemens.
com/cs/ww/en/view/108210036)
Controlling, measuring and
position detection
• TO_BasicPos (control of a SINAMICS drive)
• SSI_Absolute_Encoder (control of position detection
and measuring function of the TMPosInput techno
logy module)
STEP7 online help
Security Integrated
18 CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD
Product overview
3.4 Firmware functions

Function Description Additional information
Know-how protection The know-how protection protects user blocks against
unauthorized access and modifications.
Access protection You can use authorization levels to assign separate rights
to different user groups.
Integrity protection The CPUs come with an integrity protection function as
standard. This helps to detect possible manipulations 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 manipulations of engineering
data. The user receives a corresponding message about
manipulations of engineering data detected by the integ
rity protection.
Password provider 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.
S7-1500R/H redundant system
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) sys
tem manual
3.5 Operator controls and display elements
3.5.1 Front view of the CPU with closed front panel
The figure below shows the front view of the CPU1515R‑2PN.
19
Product overview
3.5 Operator controls and display elements
CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD


① LED displays for the current operating state and diagnostic status of the CPU
② Display
③ Control keys
Figure 3-3View of the CPU1515R‑2PN (with front panel) - front
NOTE
Temperature range for display
To increase its service life, the display switches off at a temperature below the permitted
operating temperature of the device. When the display cools down, it automatically switches
itself on again. When the display is switched off, the LEDs continue to show the status of the
CPUs.
You can find additional information on the temperatures at which the display switches itself
on and off in the Technical specifications (Page 35).
Pulling and plugging the front panel with display
You can pull and plug the front panel with display during operation.
WARNING
Personal injury and damage to property may occur
If you remove or attach the front panel of a redundant system S7‑1500R/H during operation,
personal injury or damage to property can occur in hazardous area zone2.
Before you remove or fit the front panel, always switch off the power supply to the
S7‑1500R/H redundant system in hazardous area zone2.
20 CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
Equipment Manual, 11/2022, A5E42009914-AD
Product overview
3.5 Operator controls and display elements