Siemens Simatic S7-1500 User manual

CPU 1511-1 PN (6ES7511-1AK02-0AB0)
SIMATIC
S7-1500
CPU 1511
-1 PN
(6ES7511
-1AK02-0AB0)
Equipment Manual
05/2021
A5E40869673
-AB
Preface
S7-1500 / ET 200MP
Documentation Guide
1
Product overview
2
Connecting up
3
Interrupts, error messages,
diagnostics and system
alarms
4
Technical specifications
5
Dimensional drawing
A

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A5E40869673-AB
Ⓟ
05/2021 Subject to change
Copyright © Siemens AG 2017 - 2021.
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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
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DANGER
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WARNING
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CAUTION
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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
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property damage.
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editions.

CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 3
Preface
Purpose of the documentation
This manual supplements the system manual of the S7-1500 automation system/ET 200MP
distributed I/O system as well as 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 1511-1 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.
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/industrialsecurity).

Preface
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
4Equipment Manual, 05/2021, A5E40869673-AB
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You can find current information on the following topics quickly and easily here:
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(https://mall.industry.siemens.com).

CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 5
Table of contents
Preface ................................................................................................................................................... 3
1 S7-1500 / ET 200MP Documentation Guide ........................................................................................... 6
2 Product overview................................................................................................................................... 8
2.1 New functions ..................................................................................................................... 8
2.2 Area of application of the SIMATIC S7-1500 CPUs ............................................................... 10
2.3 Hardware properties .......................................................................................................... 19
2.4 Firmware functions............................................................................................................ 21
2.5 Operating and display elements ......................................................................................... 25
2.5.1 Front view of the CPU with closed front panel .................................................................... 25
2.5.2 Front view of the CPU without front panel and view from below......................................... 27
2.5.3 Rear view of the CPU.......................................................................................................... 28
2.6 Operating mode buttons.................................................................................................... 29
3 Connecting up ..................................................................................................................................... 30
4 Interrupts, error messages, diagnostics and system alarms ............................................................... 34
4.1 Status and error display of the CPU..................................................................................... 34
5 Technical specifications....................................................................................................................... 38
A Dimensional drawing........................................................................................................................... 50

CPU 1511-1 PN (6ES7511-1AK02-0AB0)
6Equipment Manual, 05/2021, A5E40869673-AB
S7-1500 / ET 200MP Documentation Guide
1
The documentation for the SIMATIC S7-1500 automation system and the SIMATIC ET 200MP
distributed I/O system is arranged into three areas.
This arrangement enables you to access the specific content you require.
Basic information
The System Manual and Getting Started describe in detail the configuration, installation,
wiring and commissioning of the SIMATIC S7-1500 and ET 200MP systems. The STEP 7 online
help supports you in the configuration and programming.
Device information
Product manuals contain a compact description of the module-specific information, such as
properties, wiring diagrams, characteristics and technical specifications.
General information
The function manuals contain detailed descriptions on general topics regarding the SIMATIC
S7-1500 and ET 200MP systems, e.g. diagnostics, communication, motion control, Web
server, OPC UA.
You can download the documentation free of charge from the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109742691).
Changes and supplements to the manuals are documented in a Product Information.
You can download the product information free of charge from the Internet
(https://support.industry.siemens.com/cs/us/en/view/68052815).

S7-1500 / ET 200MP Documentation Guide
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 7
Manual Collection S7-1500/ET 200MP
The Manual Collection contains the complete documentation on the SIMATIC S7-1500
automation system and the ET 200MP distributed I/O 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).
"mySupport"
With "mySupport", your personal workspace, you make the best out of your Industry Online
Support.
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support requests and you can get an overview of your current requests at any time.
You must register once to use the full functionality of "mySupport".
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 will find the application examples on the Internet
(https://support.industry.siemens.com/cs/ww/en/ps/ae).

CPU 1511-1 PN (6ES7511-1AK02-0AB0)
8Equipment Manual, 05/2021, A5E40869673-AB
Product overview
2
2.1 New functions
New functions of the CPU in firmware version V2.9
The following table provides an overview of the most important new functions of the CPU
with firmware version V2.9.
New functions Applications Customer benefits Where can I find in-
formation?
Communication of the CPU
Secure PG/HMI communi-
cation
With STEP 7 and WinCC as of Version
V17, SIMATIC S7-1500 CPUs and ET
200 CPUs from firmware version 2.9
support innovated and standardized
secure PG/PC and HMI communica-
tion – referred to as Secure PG/HMI
communication for short.
Secure and standardized crea-
tion or assignment of PLC
communication certificates
Communication func-
tion manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/59192925)
Protection of confidential
configuration data
You have the option of assigning a
password for protecting confidential
configuration data of the respective
CPU. This refers to data such as pri-
vate keys that are required for the
proper functioning of certificate-
based protocols.
Additional password protec-
tion of confidential configura-
tion data
OPC UA: Alarms & Condi-
tions
OPC UA clients from any manufactur-
er can subscribe to alarms of the CPU
via OPC UA Alarms & Conditions.
Without further measures,
alarms created once via OPC
UA are available as events and
alarms. The alarms can be
displayed by any display de-
vice with corresponding OPC
UA client functionality.
OPC UA: Certificate man-
agement via Global Dis-
covery Server (GDS)
Via GDS push management func-
tions:
•Automated update of OPC UA
certificates of an S7-1500 CPU
•Transfer of updated certificates
and lists in RUN operating state of
the CPU
The automation of the certifi-
cate management eliminates
any manual work required for
reconfiguring the CPU, for
example, after a certificate has
expired, and a new download
to the CPU.

Product overview
2.1 New functions
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 9
New functions Applications Customer benefits Where can I find in-
formation?
DHCP (Dynamic Host
Configuration Protocol)
The CPU can use the DHCP communi-
cation protocol to assign the network
configuration via a DHCP server.
The CPU uses a client ID for identifi-
cation on the DHCP server.
The following parameters can be
obtained:
•IP Suite
•DNS server
•NTP server
The CPU can also send its host name
to the DHCP server.
With DHCP, you can integrate
the CPU into an existing IT
network without having to
make additional changes to
the PROFINET interface.
Communication func-
tion manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/59192925)
MRP interconnection in
PROFINET networks
The MRP interconnection procedure
is an extension of MRP.
MRP interconnection enables the
redundant coupling of two or more
rings with MRP in PROFINET net-
works.
There is no limit to the maxi-
mum number of 50 devices in
a ring when setting up redun-
dant network topologies.
Monitoring of larger topolo-
gies with ring redundancy
PROFINET function
manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/49948856)
Web server of the CPU
Web applications that can
be loaded by the user
Additional methods to manage web
applications via Web API
You can use all available Web API
methods within the web application
Web applications are also
available in STOP mode of the
CPU
Reduced development times
of web server user pages
Web server function
manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/59193560)
New Web API methods
Reading and changing the CPU oper-
ating state via Web API
Ticket methods for transferring large
amounts of data outside of the JSON
RPC protocol
Additional applications for the
web server
Diagnostic information on
motion control
Diagnostic information is available
for all technology objects
Improved display and grouping of the
tags
Comprehensive diagnostic
options by means of motion
control applications are possi-
ble via the web server.
Optimizations to the DNS
(Domain Name System)
functionality with OPC
UA/Open User Communi-
cation and on the web
server
The feedback messages of the OPC
UA server with the "Application
Name" can be sent via DNS.
The NTP client of the CPU can address
its relevant NTP servers via DNS.
The Web server can be consistently
reached via DNS addressing. DNS is
taken into account during certificate
handling.
A pool of NTP servers can be
addressed.
Communication func-
tion manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/59192925)
Web server function
manual
(https://support.industr
y.siemens.com/cs/ww/
en/view/59193560)
Technology functions of the CPU
Axis functions
•Backlash compensation
•Linear motor
The repeat accuracy of a
movement is increased by
compensation for the mechan-
ical play of the real axis.
Easier control of highly dy-
namic linear motors.
S7-1500T Motion Con-
trol function manuals
(https://support.industr
y.siemens.com/cs/ww/
en/view/109751049)

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
10 Equipment Manual, 05/2021, A5E40869673-AB
Reference
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).
2.2 Area of application of the SIMATIC S7-1500 CPUs
Area of application
SIMATIC S7-1500 is the modular control system for a wide variety of automation applications
in discrete automation.
SIMATIC S7-1500 is the cost-effective and convenient solution for a broad range of tasks and
offers the following advantages:
•Modular, fanless design
•Simple realization of distributed structures
•User-friendly handling
Areas of application of the SIMATIC S7-1500 automation system include, for example:
•Special-purpose machines
•Textile machinery
•Packaging machines
•General mechanical engineering
•Controller engineering
•Machine tool engineering
•Installation engineering
•Electrical industry and crafts
•Automobile engineering
•Water/waste water
•Food & Beverage
Areas of application of the SIMATIC S7-1500R/H redundant system include, for example:
•Tunnels
•Airports (e.g. baggage conveyors)
•Subways
•Shipbuilding
•Wastewater treatment plants
•High-bay warehouses

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 11
Areas of application of the SIMATIC S7-1500T automation system for advanced motion
control applications include, for example:
•Packaging machines
•Converting applications
•Assembly automation
•Pick-and-place automation
•Palletizers
You can choose between CPUs with various levels of performance and a comprehensive
range of modules with many convenient functions. Fail-safe CPUs enable use in fail-safe
applications. The modular design allows you to use only the modules that you need for your
application. The controller can be retrofitted with additional modules at any time to expand
its range of tasks.
High industrial suitability due to the high resistance to EMC, shock and vibration enable
universal use of the SIMATIC S7-1500, S7-1500R/H and S7-1500T automation systems.
Performance segments of the CPUs
The CPUs can be used for smaller and mid-range applications, as well as for the high-end
range of machine and plant automation.
Table 2- 1 Standard CPUs
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1511-1 PN
Standard CPU for small
to mid-range applica-
tions
--
1
--
--
1.15 MB
60 ns
CPU 1513-1 PN
Standard CPU for mid-
range applications
--
1
--
--
1.8 MB
40 ns
CPU 1515-2 PN
Standard CPU for mid-
range to large applica-
tions
--
1
1
--
3.5 MB
30 ns
CPU 1516-
3 PN/DP
Standard CPU for de-
manding applications
and communication
tasks
1
1
1
--
6 MB
10 ns
CPU 1517-
3 PN/DP
Standard CPU for de-
manding applications
and communication
tasks
1
1
1
--
10 MB
2 ns

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
12 Equipment Manual, 05/2021, A5E40869673-AB
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1518-
4 PN/DP
Standard CPU for high-
performance applica-
tions, demanding com-
munication tasks and
very short reaction
times
1
1
1
1
24 MB
1 ns
CPU 1518-4
PN/DP MFP
Standard CPU for high-
performance applica-
tions, demanding com-
munication tasks, very
short reaction times and
C/C++ blocks for the
user program
1
1
1
1
74* MB
1 ns
* 50 MB of the integrated work memory is reserved for the function library of CPU runtime
Table 2- 2 Redundant CPUs
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1513R-1 PN
Redundant CPU for
smaller to mid-range
applications
--
1
--
--
1.8 MB
80 ns
CPU 1515R-2 PN
Redundant CPU for mid-
range to large applica-
tions
--
1
--
1
3.5 MB
60 ns
CPU 1517H-
3 PN
Redundant CPU for
demanding applications
and communication
tasks
--
1
--
1
10 MB
4 ns
CPU 1518HF-
4 PN
Fail-safe and redundant
CPU for demanding
applications and com-
munication tasks
--
1
--
2
69 MB
4 ns

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 13
Table 2- 3 Compact CPUs
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1511C-1 PN
Compact CPU for small
to mid-range applica-
tions
--
1
--
--
1.175 MB
60 ns
CPU 1512C-1 PN
Compact CPU for mid-
range applications
--
1
--
--
1.25 MB
48 ns
Table 2- 4 Fail-safe CPUs
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1511F-1 PN
Fail-safe CPU for small
to mid-range applica-
tions
--
1
--
--
1.225 MB
60 ns
CPU 1511TF-
1 PN
Fail-safe technology
CPU for small to mid-
range applications
--
1
--
--
1.225 MB
60 ns
CPU 1513F-1 PN
Fail-safe CPU for mid-
range applications
--
1
--
--
1.95 MB
40 ns
CPU 1515F-2 PN
Fail-safe CPU for mid-
range to large applica-
tions
--
1
1
--
3.75 MB
30 ns
CPU 1515TF-
2 PN
Fail-safe technology
CPU for demanding
applications and com-
munication tasks
--
1
1
--
3.75 MB
30 ns
CPU 1516F-
3 PN/DP
Fail-safe CPU for de-
manding applications
and communication
tasks
1
1
1
--
6.5 MB
10 ns
CPU 1516TF-
3 PN/DP
Fail-safe technology
CPU for demanding
applications and com-
munication tasks
1
1
1
--
6.5 MB
10 ns
CPU 1517F-
3 PN/DP
Fail-safe CPU for de-
manding applications
and communication
tasks
1
1
1
--
11 MB
2 ns
CPU 1517TF-
3 PN/DP
Fail-safe technology
CPU for demanding
applications and com-
munication tasks
1
1
1
--
11 MB
2 ns

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
14 Equipment Manual, 05/2021, A5E40869673-AB
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1518F-
4 PN/DP
Fail-safe CPU for high-
performance applica-
tions, demanding com-
munication tasks and
very short reaction
times
1
1
1
1
26 MB
1 ns
CPU 1518F-
4 PN/DP MFP
Fail-safe CPU for high-
performance applica-
tions, demanding com-
munication tasks, very
short reaction times and
C/C++ blocks for the
user program
1
1
1
1
76* MB
1 ns
CPU 1518TF-
4 PN/DP
Technology CPU for
high-performance mo-
tion control applications
with large quantities,
demanding communi-
cation tasks and very
short reaction times
1
1
1
1
69 MB
1 ns
* 50 MB of the integrated work memory is reserved for the function library of CPU runtime
Table 2- 5 Technology CPUs
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1511T-1 PN
Technology CPU for
small to mid-range
applications
--
1
--
--
1.225 MB
60 ns
CPU 1515T-2 PN
Technology CPU for
mid-range to large ap-
plications
--
1
1
--
3.75 MB
30 ns
CPU 1516T-3 PN
/DP
Technology CPU for
high-end applications
and communication
tasks
1
1
1
--
6.5 MB
10 ns
CPU 1517T-
3 PN/DP
Technology CPU for
complex applications
and communication
tasks
1
1
1
--
11 MB
2 ns

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
Equipment Manual, 05/2021, A5E40869673-AB 15
CPU Performance segment PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
Basic
PROFINET
functional-
ity
Work
memory
Pro-
cessing
time for
bit oper-
ations
CPU 1518T-
4 PN/DP
Technology CPU for
high-performance mo-
tion control applications
with large quantities,
demanding communi-
cation tasks and very
short reaction times
1
1
1
1
69 MB
1 ns
CPU 1511TF-
1 PN
CPU 1515TF-
2 PN
CPU 1516TF-
3 PN/DP
CPU 1517TF-
3 PN/DP
CPU 1518TF-
4 PN/DP
These CPUs are described in the fail-safe CPUs
Performance segments of compact CPUs
The compact CPUs can be used for smaller to mid-range applications and have an integrated
analog and digital on-board I/O as well as integrated technology functions. The following
table shows the specific properties of the Compact CPUs.
CPU 1511C-1 PN
CPU 1512C-1 PN
Integrated analog inputs/outputs
5 inputs/2 outputs
5 inputs/2 outputs
Integrated digital inputs/outputs
16 inputs/16 outputs
32 inputs/32 outputs
High-speed counters
6
6
Frequency meters
6 (max. 100 kHz)
6 (max. 100 kHz)
Period duration measurement
6 channels
6 channels
Pulse width modulation (PWM output)
Max. 4 (up to 100 kHz)
Max. 4 (up to 100 kHz)
Pulse Train Output (PTO output)
Max. 4 (up to 100 kHz)
Max. 4 (up to 100 kHz)
Frequency output
Up to 100 kHz
Up to 100 kHz

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
16 Equipment Manual, 05/2021, A5E40869673-AB
Integrated Motion Control technology functions
All CPUs of the SIMATIC S7-1500 automation system support motion control technology
functions. STEP 7 provides PLCopen-standardized Motion Control instructions for configuring
and connecting a drive to the CPU.
S7-1500 Motion Control supports the following technology objects:
•Speed-controlled axes
•Positioning axes
•Synchronous axes
•External encoders
•Cam
•Cam track
•Measuring input
The technology CPUs of the SIMATIC S7-1500-automation system offer enhanced Motion
Control functions:
•Advanced synchronization functions
–Synchronization with specification of the synchronous position
–Actual value coupling
–Shifting of the master value at the following axis
–Camming
•Up to 4 encoder or measuring systems as actual position for position control
•Cam
•Kinematics for control of:
–Cartesian portals
–Roller pickers
–Jointed-arm robots
–Delta pickers
–SCARA robots
Due to the supported technology functions, the S7-1500T CPUs are suitable for controlling
packaging machines, converting applications, assembly automation, etc.
Additional integrated technology functions
For effective commissioning, diagnostics and fast optimization of drives and controls, the
SIMATIC S7-1500 controller series offers extensive trace functions for all CPU tags.
In addition to drive integration, the SIMATIC S7-1500 controller series has a PID compact
closed-loop controller; easy-to-configure blocks allow automatic optimization of the
controller parameters for optimum control quality.

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
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Other technology functions
Technology modules also implement functions such as high-speed counting, position
detection, measuring functions and pulse generators (PTO, PWM and frequency output). With
the CPU 1511C-1 PN and CPU 1512C-1 PN compact CPUs, these functions are already
integrated and can be implemented without additional technology modules.
SIWAREX is a versatile and flexible weighing module which you can use as a static scale for
operation.
Redundant CPUs
The CPUs of the S7-1500R/H redundant system offer a high degree of reliability and system
availability. A redundant configuration of the most important automation components
reduces the likelihood of production downtimes and the consequences of component errors.
The higher the risks and costs of a production downtime, the more worthwhile the use of a
redundant system. The avoidance of production downtimes compensates for the generally
higher investment costs.
Security Integrated
In conjunction with STEP 7, each CPU offers password-based know-how protection against
unauthorized reading out or modification of the program blocks.
Copy protection provides reliable protection against unauthorized reproduction of program
blocks. With copy protection, individual blocks on the SIMATIC memory card can be tied to its
serial number so that the block can only be run if the configured memory card is inserted into
the CPU.
In addition, you can assign various access rights to different user groups in the controller
using four different authorization levels.
Improved manipulation protection allows changed or unauthorized transfers of engineering
data to be detected by the controller.
The use of an Ethernet CP (CP 1543-1) provides you with additional access protection
through a firewall or possibilities to establish secure VPN connections.
Safety Integrated
The fail-safe CPUs are intended for users who want to implement demanding standard and
fail-safe applications both centrally and decentrally.
These fail-safe CPUs allow the processing of standard and safety programs on a single CPU.
This allows fail-safe data to be evaluated in the standard user program. The integration also
provides the system advantages and the extensive functionality of SIMATIC for fail-safe
applications.
The fail-safe CPUs are certified for use in safety mode up to:
•Safety class (Safety Integrity Level) SIL 3 according to IEC 61508:2010
•Performance Level (PL) e and Category 4 according to ISO 13849-1:2015 or EN ISO 13849-
1:2015
Additional password protection for F-configuration and F-program is set up for IT security.

Product overview
2.2 Area of application of the SIMATIC S7-1500 CPUs
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
18 Equipment Manual, 05/2021, A5E40869673-AB
Design and handling
All CPUs of the SIMATIC S7-1500 product series feature a display with plain text information.
The display provides the user with information on the order numbers, firmware version, and
serial number of all connected modules. In addition, the IP address of the CPU and other
network settings can be adapted locally without a programming device. Error messages are
shown on the display directly in plain text. When performing servicing, you can minimize
plant downtimes by quickly accessing the diagnostics alarms. Detailed information about this
and a multitude of other display functions is available in the SIMATIC S7-1500 Display
Simulator (https://support.industry.siemens.com/cs/ww/en/view/109761758).
Uniform front connectors for all modules and integrated potential jumpers for flexible
formation of potential groups simplify storage. Additional components such as circuit
breakers, relays, etc., can be installed quickly and easily, since a DIN rail is implemented in
the rail of the SIMATIC S7-1500. The CPUs of the SIMATIC S7-1500 product series can be
expanded centrally and in a modular fashion with signal modules. Space-saving expansion
enables flexible adaptation to each application.
The system cabling for digital signal modules enables fast and clear connection to sensors
and actuators from the field (fully modular connection consisting of front connector
modules, connection cables and I/O modules), as well as easy wiring inside the control
cabinet (flexible connection consisting of front connectors with assembled single
conductors).
System diagnostics and alarms
Integrated system diagnostics is activated by default for the CPUs. The different types of
diagnostics are configured instead of programmed. System diagnostics information and
alarms from the drives are displayed consistently and in plain text:
•On the CPU display
•In STEP 7
•On the HMI
•On the Web server
This information is available in RUN mode, but also in STOP mode of the CPU. The diagnostic
information is updated automatically when you configure new hardware components.
The CPU is available as a central interrupt server in up to three project languages. The HMI
takes over the display in the project languages defined for the CPU. If you require alarm texts
in additional languages, you can load them into your HMI via the configured connection. The
CPU, STEP 7 and your HMI ensure data consistency without additional engineering steps. The
maintenance work is easier.

Product overview
2.3 Hardware properties
CPU 1511-1 PN (6ES7511-1AK02-0AB0)
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2.3 Hardware properties
Article number
6ES7511-1AK02-0AB0
View of the module
The following figure shows a CPU 1511-1 PN.
Figure 2-1 CPU 1511-1 PN
Note
Protective film
Note that a protective film is attached to the display of the CPU when shipped from the
factory. Remove the protective film if necessary.