Siemens SIMATIC S7-1500R/H Technical Document

EQUIPMENT MANUAL
CPU 1518HF-4 PN
Edition
S7-1500R/H
support.industry.siemens.com
6ES7518-4JP00-0AB0
11/2022
SIMATIC

Introduction 1
Safety instructions 2
Product overview 3
Connecting 4
Alarm, error and system
messages 5
Technical specifications 6
Dimension drawing A
SIMATIC
S7-1500R/H
CPU 1518HF-4 PN
(6ES7518-4JP00-0AB0)
Equipment Manual
11/2022
A5E49868646-AB

Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E49868646-AB
Ⓟ 10/2022 Subject to change
Copyright © SiemensAG 2021 - 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 instructions.............................................................................................................................. 9
2.1 Security information......................................................................................................... 9
3 Product overview................................................................................................................................ 10
3.1 New functions.................................................................................................................. 10
3.2 Configuration and operating principle............................................................................... 11
3.3 Hardware properties......................................................................................................... 13
3.4 Firmware functions........................................................................................................... 16
3.5 Operator controls and display elements............................................................................. 18
3.5.1 Front view of the CPU with closed front flap...................................................................... 18
3.5.2 Front view of the CPU without front flaps.......................................................................... 20
3.5.3 Rear view of the CPU......................................................................................................... 21
3.5.4 Bottom view..................................................................................................................... 22
3.6 Mode selector................................................................................................................... 22
4 Connecting......................................................................................................................................... 24
4.1 Terminal assignment........................................................................................................ 24
5 Alarm, error and system messages.................................................................................................... 29
5.1 Status and error display of the CPU.................................................................................... 29
6 Technical specifications...................................................................................................................... 34
A Dimension drawing............................................................................................................................ 44
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
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1518HF-4PN.
NOTE
When using CPU 1518HF-4 PN in Safety mode, note the description of the fail-safe system
SIMATIC Safety SIMATIC Safety - Configuring and Programming
(https://support.industry.siemens.com/cs/ww/en/view/54110126) programming and
operating manual.
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).
5
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
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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)
6CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
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 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

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)
8CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
Introduction
1.1 S7-1500R/H Documentation Guide

Safety instructions 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).
9
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Equipment Manual, 11/2022, A5E49868646-AB

CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
10
Product overview 3
3.1 New functions
This section contains an overview of the most important new firmware functions of the CPU
since the last edition of the manual.
New functions of the CPU in firmware version V3.0
New functions Customer benefits Where can I find information?
Support
PROFINET system redundancy R1
As of FW version V3.0, the S7-1500H redundant
system supports PROFINET system redundancy
R1:
• ET 200SP IM 155-6 PN R1
(6ES7155-6AU00-0HM0)
• ET 200SP HA IM 155-6 PN HA
(6DL1155-6AU00-0PM0)
• ET 200iSP IM 152-1 PN
(6ES7152-1BA00-0AB0)
R1 devices are equipped with two interface mod
ules compared to S2 devices. If one interface
module fails, the R1 device can still be reached
by the H-CPUs via the second interface module.
Thus, R1 devices have a higher availability than
S2 devices.
• S7-1500R/H System Manual
(https://support.industry.
siemens.
com/cs/ww/en/view/109754
833)
• PROFINET Function Manual
(http://support.automation.
siemens.
com/WW/view/en/49948856)
New configuration variants for S7-1500H As of FW version V3.0, the S7-1500H redundant
system supports additional configuration vari
ants:
• Configuration of PROFINET rings with R1
devices
• Configuration of a line topology with S2
devices, switched S1 devices
• Configuration of a line topology with R1
devices
• Configuration of a combined topology with
R1 devices, S2 devices
• Configuration without additional devices
This allows you to connect the S7-1500H
redundant system to almost any network topo
logy and solve complex automation tasks.
S7-1500R/H System Manual
(https://support.industry.
siemens.
com/cs/ww/en/view/109754833)
OB 70 As of FW version V3.0, OB 70 (I/O redundancy
error) is available for the diagnostics of R1 and
S2 devices in S7-1500H systems.
S7-1500R/H System Manual
(https://support.industry.
siemens.
com/cs/ww/en/view/109754833)

New functions Customer benefits Where can I find information?
Synchronization module up to 40 km As of FW version V3.0, a new synchronization
module Sync Module 1 GB FO 40km is available.
The synchronization module enables a distance
of up to 40km between the two H-CPUs via
optical fibers. This allows you to use the
S7-1500H redundant system for long tunnel
installations.
S7-1500R/H System Manual
(https://support.industry.
siemens.
com/cs/ww/en/view/109754833)
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 load
memory)
• DELETE_DB (delete data block)
STEP7 online help
Network management protocol SNMP: A
simple configuration option is now avail
able for using SNMP services. For new
configurations, this is disabled by default
in accordance with "Security-by-Default".
Can be enabled/disabled in the CPU properties.
Community strings can be configured.
Communication Function Manual
(https://support.industry.
siemens.
com/cs/ww/en/view/59192925)
Trace: The S7-1500 CPU supports up to
64 configured signals per trace.
Number of configurable signals per trace exten
ded
Using the Trace and Logic Ana
lyzer Function Function Manual
(http://support.automation.
siemens.
com/WW/view/en/64897128)
Additional information
You can find an overview of all new functions, improvements and revisions in the respective
firmware version on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109478459).
3.2 Configuration and operating principle
Structure
The S7-1500H redundant system consists of the following components:
•Two CPUs of the type CPU1518HF‑4PN
•Two SIMATIC memory cards
•Four synchronization modules (two synchronization modules in each H-CPU)
•Two redundancy connections (two duplex fiber-optic cables)
•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 with fiber-optic cables to two synchronization
modules in each CPU.
11
Product overview
3.2 Configuration and operating principle
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

You set up the PROFINET ring or the PROFINET network via the PROFINET interfaces X1 P1R
and X1 P2R of the CPUs (as of FW version V3.0: e.g. as line or mixed topology).

① Optional load current supply
② First CPU
③ Mounting rail with integrated DIN rail profile
④ Second CPU
⑤ Location of the synchronization modules (not visible in graphic)
⑥ Redundancy connections (fiber-optic cables)
⑦ PROFINET cable (PROFINET ring)
Figure 3-1S7‑1500H configuration example (with PROFINET ring)
NOTE
Standard rail adapter
You mount the CPUs on a standardized 35mm rail using the standard rail adapter.
You can 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 role of
the CPUs can change during operation. All relevant data is synchronized from the primary
CPU to the backup CPU via the fiber-optic cables of the redundancy connections.
Synchronization between the primary CPU and backup CPU ensures fast switching between
12 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
Product overview
3.2 Configuration and operating principle

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 consist of two fiber-optic cables, which directly connect the
CPUs via plug-in synchronization modules.
The integrated F functionality with Safety Integrated processes standard and safety programs.
You can find more information in the SIMATIC Safety - Configuring and Programming
(https://support.industry.siemens.com/cs/ww/en/view/54110126) programming and
operating manual.
Additional information
You can find a detailed description of the operation and design of the S7‑1500H redundant
system in the system manual for Redundant System S7-1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
3.3 Hardware properties
Article number
6ES7518-4JP00-0AB0
13
Product overview
3.3 Hardware properties
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

View of the module
The figure below shows CPU1518HF‑4PN.
Figure 3-2CPU1518HF‑4PN
NOTE
Protective film
Note that there is a removable protective film on the display when the CPUs are delivered.
Properties
CPU1518HF‑4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.
• Redundant System S7‑1500R/H
(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)
14 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
Product overview
3.3 Hardware properties

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 24)
• Redundant System S7‑1500R/H
(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).
• The PROFINETIO interface X1 (defaultP1R) is used to
set up the PROFINET ring or PROFINET network (e.g.
line topology, mixed topology) with the two CPUs
and 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
and X3P1)
Die CPU has an X2 interface with one port (X2P1) and an
X3 interface with one port (X3P1).
Interfaces X2 and X3 support the basic functions of
PROFINET.
H‑Sync interfaces (X4P1
and X5P1)
Die CPU has an X4 interface with one port (X4P1) and an
X5 interface with one port (X5P1).
The X4 and X5 interfaces are reserved for the synchroniz
ation of the two CPUs.
Synchronization modules Make the redundancy connections between the two
CPUs via the synchronization modules with fiber-optic
cables.
You plug each synchronization modules in the X4 and X5
interfaces.
Fiber-optic cables You connect the two synchronization modules in pairs to
each CPU via a fiber-optic cable.
Operation of the CPUs as IO
controllers
IO controller:
As IO controllers the CPUs address the following con
figured IO devices:
• IO devices with system redundancy S2
• IO devices with system redundancy R1 (as of FW ver
sion V3.0)
• Standard IO devices (switched S1 devices)
• Redundant System S7‑1500R/H
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
System Manual
• PROFINET Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/49948856)
Accessories
You can find information on the topic of "Accessories/spare parts" in the system manual for
Redundant System S7‑1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
15
Product overview
3.3 Hardware properties
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

3.4 Firmware functions
Functions
CPU1518HF‑4PN supports the following firmware functions:
Function Description Additional information
CPU redundancy There are two duplicate CPUs that synchronize their data
via two duplex fiber-optic cables, which connect the
CPUs directly to each other via plug-in synchronization
modules. If one of the CPUs fails, the other CPU retains
control of the process.
Redundant System S7‑1500R/H
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) Sys
tem Manual
Safety Integrated The integrated F-functionality processes standard and
safety programs.
This allows fail-safe data to be evaluated in the standard
user program. As a result of the integration, the system
advantages and the extensive functionality of SIMATIC
are also available for fail-safe applications.
The F-CPU is certified for use in safety mode up to:
• Safety Integrity LevelSIL3 acc. to IEC 61508
• Performance Level (PL) e and Category 4 according to
ISO 13849-1:2006 or according to EN ISO 13849-1
Additional password protection for F-configuration and
F-program is set up for IT security.
SIMATIC Safety - Configuring and Pro
gramming
(https://support.industry.siemens.
com/cs/ww/en/view/54110126) pro
gramming and operating 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.
Diagnostics Function Manual
(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)
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.
System redundancy R1 IO devices with R1 system redundancy are equipped with
two interface modules compared to S2 devices.
If one interface module fails, the R1 device can still be
reached by the H-CPUs via the second interface module.
Thus, R1 devices have a higher availability than S2
devices.
• Redundant System S7‑1500R/H
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
System Manual
• PROFINET Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/49948856)
16 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
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Product overview
3.4 Firmware functions

Function Description Additional information
Switched S1 device The switched S1 device function of the CPU enables
operation of standard IO devices in the S7‑1500R/H
redundant system.
Redundant System S7‑1500R/H
(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 H-CPUs assume the role of
the MRP Manager following appropriate project configur
ation and all other devices in the ring assume the role of
the MRP clients.
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.
PROFINET Function Manual
(https://support.industry.siemens.
com/cs/ww/en/view/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)
PID Control Function Manual
(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
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 feature an integrity protection function by
default. This helps to detect any manipulation of the
engineering data on the SIMATIC Memory Card or during
data transfer between the TIA Portal and the CPU, and to
check communication from a SIMATIC HMI system to the
CPU for possible manipulation of engineering data. The
user receives a corresponding message about manipula
Redundant System S7‑1500R/H
(https://support.industry.siemens.
com/cs/ww/en/view/109754833) Sys
tem Manual
17
Product overview
3.4 Firmware functions
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

Function Description Additional information
tion of engineering data detected by the integrity protec
tion.
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.
Redundant System S7‑1500R/H
(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 flap
The following figure shows the front view of the CPU1518HF‑4PN.
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6ES7518-4JP00-0AB0
CPU 1518HF-4 PN
RUN
Overview
OK

① LEDs for the current operating state and diagnostic status of the CPU
② Front panel with display
③ Display
④ Control keys
⑤ Front panel of the X4 and X5 interfaces
Figure 3-3View of CPU1518HF‑4PN (with front panel) - front
18 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
Product overview
3.5 Operator controls and display elements

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
CPU.
For more information on the temperatures at which the display switches itself on and off,
refer to the Technical specifications (Page 34).
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.
Locking the front panel
You can lock the front panel to protect the SIMATIC memory card and the mode selector of
the CPU against unauthorized access.
You can attach a security seal or a padlock with a hoop diameter of 3mm to the front panel.
Figure 3-4Locking latch on the CPU
In addition to the mechanical lock, you can also block access to a password-protected CPU on
the display (local lock) and assign a password for the display. You can find additional
information on the display, the configurable protection levels and the local lock in the system
manual for Redundant System S7‑1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
19
Product overview
3.5 Operator controls and display elements
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB

Reference
You can find detailed information on the individual display options, a training course and a
simulation of the available menu commands in the SIMATIC S7-1500 Display Simulator
(https://support.industry.siemens.com/cs/ww/en/view/109761758).
3.5.2 Front view of the CPU without front flaps
The figure below shows the operator controls and connection elements of CPU1518HF‑4PN.

① Mode selector
② No function
③ LED displays for the ports of the X4 and X5 interfaces
④ MAC addresses of the X4 and X5 interfaces
⑤ H-Sync X4 and X5 interfaces with 1 port each (not visible in graphic)
⑥ Fixing screws
⑦ Connector for power supply
⑧ PROFINETIO interface X1 with 2 ports
⑨ PROFINET IO interface X2 and X3 each with 1 port
⑩ MAC addresses of the X1, X2 and X3 interfaces
⑪ LED displays for the ports of the X1, X2 and X3 interfaces
⑫ Slot for the SIMATIC memory card
⑬ Display connector
⑭ LEDs for the current operating state and diagnostic status of the CPU
Figure 3-5View of CPU1518HF‑4PN (without front panel) - front
20 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB
Product overview
3.5 Operator controls and display elements