Siemens CPU 1518-4 PN/DP ODK User manual

CPU 1518-4 PN/DP ODK (6ES7518-
4AP00-3AB0)
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SIMATIC
S7-1500
CPU 1518-4 PN/DP ODK
(6ES7518-4AP00-3AB0)
Manual
09/2016
A5E35681108
-AA
Preface
Documentation guide
1
Product overview
2
Connecting up
3
Interrupts, error messages,
diagnostics and system
alarms
4
Technical specifications
5
Dimensional drawing
A

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E35681108-AA
Ⓟ
08/2016 Subject to change
Copyright © Siemens AG 2015 - 2016.
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.

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4Manual, 09/2016, A5E35681108-AA
Preface
Purpose of the documentation
This manual supplements the system manual of the S7-1500 automation system and the
function manuals. All cross-system functions are described in the system manual and in the
function manuals.
The information provided in this manual and the system manual enables you to commission
the CPU 1518-4 PN/DP ODK.
Basic knowledge required
To understand this documentation, you need to have general knowledge of automation
engineering. You also need basic knowledge of the following topics:
●Knowledge of the industrial automation system SIMATIC
●Knowledge of working with STEP 7
●Knowledge of programming with C/C++
●Working with the Eclipse development environment
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)".
●
ODK
: Open Development Kit
●
SO:
Shared Object
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.

Preface
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 5
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 only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines
and networks. Systems, machines and components should only be connected to the
enterprise network or the internet if and to the extent necessary and with appropriate security
measures (e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For more information about industrial security, please visit
(http://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends to apply product updates as soon as available and to
always use the latest product versions. Use of product versions that are no longer supported,
and failure to apply latest updates may increase customer’s exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under (http://www.siemens.com/industrialsecurity).
Siemens Industry Online Support
You can find current information on the following topics quickly and easily here:
●
Product support
All the information and extensive know-how on your product, technical specifications,
FAQs, certificates, downloads, and manuals.
●
Application examples
Tools and examples to solve your automation tasks – as well as function blocks,
performance information and videos.
●
Services
Information about Industry Services, Field Services, Technical Support, spare parts and
training offers.
●
Forums
For answers and solutions concerning automation technology.
●
mySupport
Your personal working area in Industry Online Support for messages, support queries,
and configurable documents.
This information is provided by the Siemens Industry Online Support in the Internet
(http://www.siemens.com/automation/service&support).

Preface
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
6Manual, 09/2016, A5E35681108-AA
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).
Catalogs for all the products in automation and drives are available on the Internet
(https://mall.industry.siemens.com).

CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 7
Table of contents
Preface ................................................................................................................................................... 4
1 Documentation guide .............................................................................................................................. 8
2 Product overview .................................................................................................................................. 12
2.1 Application ..............................................................................................................................12
2.2 How it works............................................................................................................................18
2.3 Properties................................................................................................................................19
2.4 Operating and display elements .............................................................................................24
2.4.1 Front view of the module with closed front panels..................................................................24
2.4.2 Front view of the module without front panels ........................................................................26
2.4.3 Rear view of the module .........................................................................................................27
2.5 Mode selector switch ..............................................................................................................27
3 Connecting up....................................................................................................................................... 28
4 Interrupts, error messages, diagnostics and system alarms................................................................... 33
4.1 Status and error display of the CPU .......................................................................................33
5 Technical specifications ........................................................................................................................ 36
A Dimensional drawing............................................................................................................................. 48

CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
8Manual, 09/2016, A5E35681108-AA
Documentation guide
1
The documentation for the SIMATIC S7-1500 automation system, the CPU 1516pro-2 PN
based on SIMATIC S7-1500 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. For
CPU 1516pro-2 PN you use the corresponding operating instructions. 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.

Documentation guide
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 9
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
(http://w3.siemens.com/mcms/industrial-automation-systems-simatic/en/manual-
overview/Pages/Default.aspx).
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).
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.
In "mySupport", you can save filters, favorites and tags, request CAx data and compile your
personal library in the Documentation area. In addition, your data is already filled out in
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).
"mySupport" - Documentation
In the Documentation area in "mySupport" you can combine entire manuals or only parts of
these to your own manual.
You can export the manual as PDF file or in a format that can be edited later.
You can find "mySupport" - Documentation on the Internet
(http://support.industry.siemens.com/My/ww/en/documentation).

Documentation guide
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
10 Manual, 09/2016, A5E35681108-AA
"mySupport" - CAx data
In the CAx data area in "mySupport", you can access the current product data for your CAx
or CAe system.
You configure your own download package with a few clicks.
In doing so you can select:
●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" - CAx data on the Internet
(http://support.industry.siemens.com/my/ww/en/CAxOnline).
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/sc/ww/en/sc/2054).
TIA Selection Tool
With the TIA Selection Tool, you can select, configure and order devices for Totally
Integrated Automation (TIA).
This tool is the successor of the SIMATIC Selection Tool and combines the known
configurators for automation technology into one tool.
With the TIA Selection Tool, you can generate a complete order list from your product
selection or product configuration.
You can find the TIA Selection Tool on the Internet
(http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool).

Documentation guide
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 11
SIMATIC Automation Tool
You can use the SIMATIC Automation Tool to run commissioning and maintenance activities
simultaneously on various SIMATIC S7 stations as a bulk operation independently of the TIA
Portal.
The SIMATIC Automation Tool provides a multitude of functions:
●Scanning of a PROFINET/Ethernet network and identification of all connected CPUs
●Address assignment (IP, subnet, gateway) and station name (PROFINET device) to a
CPU
●Transfer of the date and the programming device/PC time converted to UTC time to the
module
●Program download to CPU
●Operating mode switchover RUN/STOP
●Localization of the CPU by means of LED flashing
●Reading out CPU error information
●Reading the CPU diagnostic buffer
●Reset to factory settings
●Updating the firmware of the CPU and connected modules
You can find the SIMATIC Automation Tool on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/98161300).
PRONETA
With SIEMENS PRONETA (PROFINET network analysis), you analyze the PROFINET
network during commissioning. PRONETA features two core functions:
●The topology overview independently scans PROFINET and all connected components.
●The IO check is a fast test of the wiring and the module configuration of a system.
You can find SIEMENS PRONETA on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/67460624).

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Product overview
2
2.1
Application
Area of application
SIMATIC S7-1500 is the modular control system for a wide variety of automation
applications in discrete automation.
The modular and fanless design, simple implementation of distributed structures, and user-
friendly operation make SIMATIC S7-1500 the economic and convenient solution for a
variety of tasks.
Applications of the SIMATIC S7-1500, 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
Applications of the SIMATIC S7-1500T include, for example:
●Packaging machines
●Converting application
●Assembly automation
Several CPUs with various levels of performance and a comprehensive range of modules
with many convenient features are available. 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 capability from the high resistance to EMC, shock and vibration enable
universal use of the SIMATIC S7-1500.

Product overview
2.1 Application
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 13
Performance segments of the CPU 1518-4 PN/DP ODK
The CPU can be used for the high-end area of machine and plant automation.
The CPU 1518-4 PN/DP ODK can execute blocks that were programmed with C/C++.
Programming of the blocks is effected by means of the "Open Development Kit ODK 1500S"
You can use the ODK to implement mechanisms from high-level programming languages
(e.g. object-based) within a modern programming environment. The complexity and required
time for implementation of functions is thereby reduced. The blocks generated with ODK can
be run synchronously in the execution cycle of the CPU.
You can reuse existing C/C++ algorithms.
To use existing technological know-how, you can integrate the existing C/C++ code in the
runtime environment of the CPU using the Open Development Kit. Once the C/C++ sources
have been integrated with the ODK, they can be subsequently run on the CPU.
You can find the description of the ODK application in the S7-1500 Software Controller Open
Development Kit 1500S (https://support.industry.siemens.com/cs/ww/de/view/109249838/en)
programming and operating manual as of V2.0 edition 09/2016.
However, only the part covering the real-time functionality applies to the CPU 1518-4 PN/DP
ODK.
The CPU 1518-4 PN/DP ODK has 2 memories:
●Work memory
●Additional memory for ODK applications (C/C++ code and data).
Performance segments of the standard, compact, fail-safe and technology 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
PROFINET
basic func-
tionality
Work
memory
Processing
time for bit
operations
CPU 1511-1 PN Standard CPU for small
to mid-range applications
-- 1 -- -- 1.23 MB 60 ns
CPU 1513-1 PN Standard CPU for mid-
range applications
-- 1 -- -- 1.95 MB 40 ns
CPU 1515-2 PN Standard CPU for medi-
um-sized to large applica-
tions
-- 1 1 -- 3.75 MB 30 ns
CPU 1516-3 PN
/DP
Standard CPU for de-
manding applications and
communications tasks
1 1 1 -- 6.5 MB 10 ns

Product overview
2.1 Application
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
14 Manual, 09/2016, A5E35681108-AA
CPU
Performance segment
PROFIBUS
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
PROFINET
basic func-
tionality
Work
memory
Processing
time for bit
operations
CPU 1517-3 PN
/DP
Standard CPU for de-
manding applications and
communications tasks
1 1 1 -- 11 MB 2 ns
CPU 1518-4 PN
/DP
CPU 1518-4 PN
/DP ODK
Standard CPU for high-
performance applications,
demanding communica-
tion tasks and very short
reaction times
1 1 1 1 26 MB 1 ns
Table 2- 2 Compact CPUs
CPU
Performance segment
PROFIBU
S
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
PROFINET
basic func-
tionality
Work
memory
Processing
time for bit
operations
CPU 1511C-1 P
N
Compact CPU for small to
mid-range applications
-- 1 -- -- 1.175 M
B
60 ns
CPU 1512C-1 P
N
Compact CPU for mid-
range applications
-- 1 -- -- 1.25 MB 48 ns
Table 2- 3 Fail-safe CPUs
CPU
Performance segment
PROFIBU
S
interfaces
PROFINET
IO RT/IRT
interfaces
PROFINET
IO RT
interface
PROFINET
basic func-
tionality
Work
memory
Processing
time for bit
operations
CPU 1511F-1 P
N
Fail-safe CPU for smaller
to medium-sized applica-
tions
-- 1 -- -- 1.23 MB 60 ns
CPU 1513F-1 P
N
Fail-safe CPU for medi-
um-sized applications
-- 1 -- -- 1.95 MB 40 ns
CPU 1515F-2 P
N
Fail-safe CPU for medi-
um-sized to large applica-
tions
-- 1 1 -- 3.75 MB 30 ns
CPU 1516F-3 P
N/DP
Fail-safe CPU for de-
manding applications and
communications tasks
1 1 1 -- 6.5 MB 10 ns
CPU 1517F-3 P
N/DP
Fail-safe CPU for de-
manding applications and
communications tasks
1 1 1 -- 11 MB 2 ns
CPU 1517TF-
3 PN/DP
CPU 1518F-4 P
N/DP
CPU 1518F-4 P
N/DP ODK
Fail-safe CPU for high-
performance applications,
demanding communica-
tion tasks and very short
reaction times
1 1 1 1 26 MB 1 ns

Product overview
2.1 Application
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 15
Table 2- 4 Technology CPUs
CPU
Performance segment
PROFIBUS
interfaces
PROFINE
T IO
RT/IRT
interfaces
PROFINE
T IO RT
interface
PROFINET
basic func-
tionality
Work memory
Pro-
cessing
time for
bit opera-
tions
CPU 1511T-1
PN
Technology CPU for
small to mid-range
applications
-- 1 -- -- 1.23 MB 60 ns
CPU 1515T-2
PN
Technology CPU for
mid-range to large ap-
plications
-- 1 1 -- 3.75 MB 30 ns
CPU 1517T-
3 PN/DP
Technology CPU for
complex applications
and communication
tasks
1 1 1 -- 11 MB 2 ns
CPU 1517TF-
3 PN/DP
This CPU is described in the fail-safe CPUs
Performance segments of compact CPUs
The compact CPUs can be used for smaller to medium-sized 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
Pulse generators
•PWM (pulse-width modulation)
•PTO (pulse train output or stepper motor control)
•Frequency output
4 (PTOx/PWMx) 4 (PTOx/PWMx)

Product overview
2.1 Application
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
16 Manual, 09/2016, A5E35681108-AA
Integrated technological functions
The CPUs of the SIMATIC S7-1500
support motion control functions. STEP 7 offers blocks
standardized according to PLCopen for configuring and connecting a drive to the CPU.
Motion Control supports speed-controlled, positioning and synchronous axes (synchronizing
without specification of the synchronous position) as well as external encoders, cams, cam
tracks and measuring inputs.
The CPUs of theSIMATIC S7-1500T
support advanced motion control functions in addition
to the motion control functions offered by the standard CPUs. Additional motion control
functions are absolute synchronous axes (synchronization with specification of synchronous
position) and the cam.
For effective commissioning, diagnostics and fast optimization of drives and controls, the
SIMATIC S7-1500 controller family offers extensive trace functions for all CPU tags.
In addition to drive integration, the SIMATIC S7-1500 has a PID compact closed-loop
controller; easy-to-configure blocks allow automatic optimization of the controller parameters
for optimized control quality.
Technology modules also implement functions such as high-speed counting, position
detection and measuring functions and pulse generators (PWM and frequency output). In
compact CPU 1511C-1 PN and CPU 1512C-1 PN CPUs, these functions are already
integrated and require no additional technology modules.
SIWAREX is a versatile and flexible weighing module, which you can use as a static scale
for operation.
Due to the supported technology functions, the CPUs are suitable for controlling pumps,
fans, mixers, conveyor belts, lifting platforms, gate control systems, building management
systems, synchronized axes, etc.
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.

Product overview
2.1 Application
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
Manual, 09/2016, A5E35681108-AA 17
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 13849-1:2006 or according to
EN ISO 13849-1:2008
Additional password protection for F-configuration and F-program is set up for IT security.
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. Errors
messages are immediately shown on the display in plain text, thus helping customers to
reduce downtimes.
Uniform front connectors for all modules and integrated potential bridges for flexible
formation of potential groups simplifies 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 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 diagnostic
types are configured instead of programmed. System diagnostics information is shown
uniformly and in plain text on the display of the CPU, in STEP 7, on the HMI and on the Web
server, even for alarms related to drives. This information is available in RUN mode, but also
in STOP mode of the CPU. An automatic update of the diagnostics information is performed
when you configure new hardware components.
The CPU is available as a central interrupt server for 3 languages. The CPU, STEP 7 and
your HMI guarantee data consistency without additional engineering steps. The maintenance
work is easier.

Product overview
2.2 How it works
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
18 Manual, 09/2016, A5E35681108-AA
2.2
How it works
Principle of operation
The CPU contains the operating system and executes the user program. The user program
is located on the SIMATIC memory card and is processed in the work memory of the CPU.
CPU 1518-4 PN/DP ODK allows you to integrate C/C++ functions created with the SIMATIC
S7-1500 ODK in the user program in addition to the user program created directly with STEP
7.
The connection to the process is centralized or distributed via PROFINET or PROFIBUS with
I/O modules.
The PROFINET interfaces on the CPU allow simultaneous communication with PROFINET
devices, PROFINET controllers, HMI devices, programming devices, other controllers and
other systems. CPU 1518-4 PN/DP ODK supports operation as an IO controller and I-device.
Similarly to the PROFINET interface, the PROFIBUS interface available on the CPU allows
communication with other devices. When you use the interface as PROFIBUS DP interface,
the CPU on the PROFIBUS DP also assumes the role of a DP master.

Product overview
2.3 Properties
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
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2.3
Properties
Article number
6ES7518-4AP00-3AB0
View of the module
The figure below shows the CPU 1518-4 PN/DP ODK.
Figure 2-1 CPU 1518-4 PN/DP ODK
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.

Product overview
2.3 Properties
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
20 Manual, 09/2016, A5E35681108-AA
Properties
CPU 1518-4 PN/DP ODK has the following technical properties:
●C/C++ applications
Their C/C++ applications are generated via the SIMATIC S7-1500 ODK. They are loaded
with the TIA Portal and the Web server. With the SIMATIC S7-1500 ODK you program
functions from which you can launch the STEP 7 user program.
You can find the description of the ODK application in the
S7-1500 Software Controller
Open Development Kit 1500S
programming and operating manual.
However, only the part covering the real-time functionality applies to the CPU 1518-4
PN/DP ODK.
●Communication:
–Interfaces
CPU 1518-4 PN/DP ODK has four interfaces. Three interfaces for PROFINET and one
for PROFIBUS.
The
1st PROFINET interface
(X1 P1, X1 P2) has two ports. In addition to PROFINET
basic functionality, it also supports PROFINET IO RT (real-time) and IRT (isochronous
real-time). PROFINET IO communication or real-time settings can be configured.
Even with a send clock of 125 µs, IO communication and standard communication is
possible via one cable.
Port 1 and port 2 can also be used as ring ports for the configuration of redundant ring
structures in Ethernet.
The
2nd PROFINET interface
(X2 P1) has one port. In addition to PROFINET basic
functionality, its also supports PROFINET IO RT (real-time). The basic functionality of
PROFINET supports HMI communication, communication with the configuration
system, communication with a higher-level network (backbone, router, Internet) and
communication with another machine or automation cell.
The
3rd PROFINET interface
(X3 P1) has one port and supports PROFINET basic
functionality, i.e. no IO controller / IO device role. The basic functionality of PROFINET
supports HMI communication, communication with the configuration system,
communication with a higher-level network (backbone, router, Internet) and
communication with another machine or automation cell. The 3rd PROFINET interface
supports a transmission rate of 1000 Mbps as of firmware version V1.7.
Note
IP subnets
The IP subnets of the three interfaces must be different. This means that the IP
addresses of the three interfaces must d
iffer from each other in the subnets.