Siemens Simatic ET200pro User manual

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)

SIMATIC
ET 200pro
CPU 1516pro-2 PN
(6ES7516-2PN00-0AB0)
Operating Instructions
11/2019
A5E35873416
-AC
Preface
ET 200pro Documentation
Guide
1
New properties / functions
2
Product overview
3
Mounting and connecting
4
Configuring
5
Basics of program execution
6
Protection
7
Commissioning
8
Maintenance
9
Test and service functions
10
Interrupts, diagnostics, error
messages and system
events
11
Technical specifications
12
Dimension diagram
A
Accessories/spare parts
B
Safety-relevant symbols
C

Siemens AG
Digital Industries
Postfac
h 48 48
90026 NÜRNBERG
GERMANY
A5E35873416-AC
Ⓟ
10/2019 Subject to change
Copyright © Siemens AG 2016 - 2019.
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.

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 3
Preface
Purpose of the operating instructions
This CPU 1516pro-2 PN operating instructions manual supplements the operating
instructions of the ET 200pro decentralized I/O system.
The information provided in this manual and the operating instructions of the ET 200pro
enables you to commission the CPU 1516pro-2 PN.
Basic knowledge required
General knowledge in the field of automation engineering is required to understand this
documentation.
Validity of the documentation
This documentation applies to the CPU 1516pro-2 PN of the ET 200pro distributed I/O
system.
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 s
ection of the documentation to which particular attention
should be paid.

Preface
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
4Operating Instructions, 11/2019, A5E35873416-AC
Special information
Note
Important note for maintaining the operational safety of your plant
Plants with safety
-related features are subject to special operational safety requirements on
the part of the operator. The supplier is also required to comply with certain measures for
product monitoring. Siemen
s informs system operators in the form of personal notifications
about product developments and properties which may be or beco
me important issues in
terms of operational safety.
You need to subscribe to the corresponding notifications to ensure that you always remain
up
-to-date and are able to make any necessary changes to your plant regarding operational
safety should the need
arise.
Log on to Industry Online Support. Follow the
links below and click on "Email on update" on
the right
-hand side in each case:
•
SIMATIC S7-300/S7-300F (https://support.industry.siemens.com/cs/ww/en/ps/13751)
•
SIMATIC S7-400/S7-400H/S7-400F/FH
(https://support.industry.siemens.com/cs/ww/en/ps/13828)
•
SIMATIC WinAC RTX (F) (https://support.industry.siemens.com/cs/ww/en/ps/13915)
•
SIMATIC S7-1500/SIMATIC S7-1500F
(https://support.industry.siemens.com/cs/ww/en/ps/13716)
•
SIMATIC S7-1200/SIMATIC S7-1200F
(https://support.industry.siemens.com/cs/ww/en/ps/13883)
•
Distributed I/O (https://support.industry.siemens.com/cs/ww/en/ps/14029)
•
STEP 7 (TIA Portal) (https://support.industry.siemens.com/cs/ww/en/ps/14340)
Note
When using F
-CPUs in safety mode, note the description of the fail-safe system SIMATIC
Safety Programming and Operating Manual SIMATIC Safety
-
Configuring and Programming
(
https://support.industry.siemens.com/cs/es/en/view/54110126).
Recycling and disposal
The products are low in pollutants and can be recycled. For environmentally compliant
recycling and disposal of your electronic waste, please contact a company certified for the
disposal of electronic waste.

Preface
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 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 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).
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This information is provided by the Siemens Industry Online Support in the Internet
(https://support.industry.siemens.com).

Preface
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
6Operating Instructions, 11/2019, A5E35873416-AC
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).

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 7
Table of contents
Preface ...................................................................................................................................................... 3
1 ET 200pro Documentation Guide ............................................................................................................ 10
2 New properties / functions ....................................................................................................................... 12
3 Product overview ..................................................................................................................................... 15
3.1 Application ..............................................................................................................................15
3.2 How it works............................................................................................................................17
3.3 Properties................................................................................................................................18
3.4 Operator control and display elements...................................................................................21
3.4.1 Front view of the module ........................................................................................................21
3.5 Mode switch............................................................................................................................22
4 Mounting and connecting......................................................................................................................... 23
4.1 Contents..................................................................................................................................23
4.2 Mounting the CPU and connection module............................................................................23
4.3 Connecting the connection module CM CPU 2PN M12 7/8"..................................................25
4.4 Connecting an RJ45 socket....................................................................................................30
4.5 Wiring and circuit diagram ......................................................................................................32
5 Configuring .............................................................................................................................................. 33
5.1 Introduction to configuring ......................................................................................................33
5.2 Configuring the CPU...............................................................................................................34
5.2.1 Reading out the configuration.................................................................................................34
5.2.2 Address assignment ...............................................................................................................39
5.2.2.1 Addressing - overview ............................................................................................................39
5.2.2.2 Addressing digital electronic modules ....................................................................................41
5.2.2.3 Addressing analog electronic modules...................................................................................43
5.2.3 Process images and process image partitions.......................................................................45
5.2.3.1 Process image - overview.......................................................................................................45
5.2.3.2 Assign process image partitions to an OB..............................................................................46
5.2.3.3 Update process image partitions in the user program............................................................47
6 Basics of program execution.................................................................................................................... 48
6.1 Events and OBs......................................................................................................................48
6.2 Asynchronous instructions......................................................................................................51
7 Protection ................................................................................................................................................ 59
7.1 Overview of the protection functions.......................................................................................59
7.2 Configuring access protection for the CPU ............................................................................60

Table of contents
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
8Operating Instructions, 11/2019, A5E35873416-AC
7.3 Using the user program to set additional access protection.................................................. 63
7.4 Know-how protection ............................................................................................................. 64
7.5 Copy protection...................................................................................................................... 68
8 Commissioning ........................................................................................................................................ 70
8.1 Overview ................................................................................................................................ 70
8.2 Procedure for commissioning the ET 200pro distributed I/O system with CPU .................... 71
8.2.1 Introduction PROFINET IO .................................................................................................... 71
8.2.2 CPU as IO controller .............................................................................................................. 72
8.2.3 CPU as I-device ..................................................................................................................... 74
8.3 Inserting/replacing SIMATIC memory card............................................................................ 76
8.4 Operating modes of the CPU................................................................................................. 78
8.4.1 Operating modes of the CPU................................................................................................. 78
8.4.2 STARTUP mode .................................................................................................................... 78
8.4.3 STOP mode ........................................................................................................................... 81
8.4.4 RUN mode ............................................................................................................................. 81
8.4.5 Operating mode transitions.................................................................................................... 82
8.5 CPU memory reset ................................................................................................................ 84
8.5.1 Introduction ............................................................................................................................ 84
8.5.2 Automatic memory reset........................................................................................................ 85
8.5.3 Manual memory reset ............................................................................................................ 85
8.6 Backing up and restoring the CPU configuration................................................................... 87
8.7 Identification and maintenance data ...................................................................................... 90
8.7.1 Reading out and entering I&M data ....................................................................................... 90
8.7.2 Data record structure for I&M data......................................................................................... 92
8.7.3 Example: Read out firmware version of the CPU with Get_IM_Data..................................... 94
8.8 Shared commissioning of projects......................................................................................... 96
9 Maintenance ............................................................................................................................................ 97
9.1 Firmware update .................................................................................................................... 97
9.2 Resetting the CPU to factory settings.................................................................................. 101
10 Test and service functions ..................................................................................................................... 105
10.1 Test functions....................................................................................................................... 105
10.2 Reading out/saving service data.......................................................................................... 112
11 Interrupts, diagnostics, error messages and system events .................................................................. 114
11.1 Status and error display of the CPU .................................................................................... 115
12 Technical specifications......................................................................................................................... 119
A Dimension diagram................................................................................................................................ 134
B Accessories/spare parts ........................................................................................................................ 136
C Safety-relevant symbols......................................................................................................................... 139
C.1 Safety-related symbols for devices without Ex protection ................................................... 139
C.2 Safety-related symbols for devices with Ex protection ........................................................ 140

Table of contents
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 9
Glossary ................................................................................................................................................ 142
Index...................................................................................................................................................... 153

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
10 Operating Instructions, 11/2019, A5E35873416-AC
ET 200pro Documentation Guide
1
The documentation for the ET 200pro distributed I/O system and for the 1513/1516pro-2 PN
CPUs based on S7-1500 is arranged into various areas. This arrangement enables you to
access the specific content you require.
Basic and device information
The operating instructions describe in detail the configuration, installation, wiring and
commissioning of the ET 200pro distributed I/O system. In addition, the operating
instructions also contain device information such as properties, wiring diagrams,
characteristics, and technical specifications. The STEP 7 online help supports you in the
configuration and programming.
General information
The function manuals contain detailed descriptions on general topics such as diagnostics,
communication, Motion Control, Web server, OPC UA.
You can download the documentation free of charge from the Internet
(https://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.
"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).

ET 200pro Documentation Guide
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 11
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).

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
12 Operating Instructions, 11/2019, A5E35873416-AC
New properties / functions
2
What's new in the operating instructions CPU 1516pro-2 PN, Version 12/2019 compared to
Version 12/2017
What's new?
What are the customer benefits?
Where can I find information?
New
contents
Example: Read out firmware
version of the CPU with
Get_IM_Data
You want to check whether the modules in
your automation system have the current
firmware.
To read out the I&M0 data, use the
"Get_IM_Data" instruction. You read the
I&M0 data of all the modules in the user
program of the CPU via "Get_IM_Data" in-
structions and store them in a data block.
Section Example: Read out
firmware version of the CPU with
Get_IM_Data (Page 94)
Direct data exchange be-
tween IO controllers
Real-time communication between IO con-
trollers with PROFINET IO IRT.
Application examples:
•Motion control
•Project trace
Communication
(https://support.industry.siemens
.com/cs/ww/en/view/59192925)
function manual
OPC UA client With instructions largely implemented ac-
cording to specification "PLCopen OPC UA
Client for IEC 61131-3", the CPU 1516pro-
2 PN takes over the active and leading part
of the communication to OPC UA servers of
other process devices.
STEP 7 as of V15.1 facilitates and acceler-
ates the program-specific implementation of
this communication task by allowing you to
import NodeSets from OPC UA servers and
to parameterize the OPC UA client instruc-
tions in a user-guided manner.
Similarly, CPU 1516pro-2 PN, acting as an
OPC UA client, can call up methods of an
OPC UA server (for example of an MES/ERP
system), for example, to fetch new produc-
tions orders from this system.
Changed
contents
Expansion width 1.2 m Maximum 1.2 m expansion width without
module rack. You can mount more wider
modules (e.g. motor starters) on the module
rack.
The maximum number of modules is still
limited to 16.
Section Technical specifications
(Page 119)

New properties / functions
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 13
What's new in the operating instructions CPU 1516pro-2 PN, Version 12/2017 compared to Version
09/2016
What's new?
What are the customer benefits?
Where can I find information?
New con-
tents
Importing the configuration When there is a connection to an existing
CPU, you can use the "Hardware detection"
function to read the configuration of the CPU
and apply the configuration in your project.
Thanks to the automatic import of the hard-
ware configuration, you do not need to man-
ually configure the CPU. This saves you time
and avoids input errors.
Section Importing the configu-
ration (Page 34)
Password provider As an alternative to manual password entry,
you can link a password provider to STEP 7.
A password provider provides the following
advantages:
•Convenient handling of passwords.
STEP 7 automatically reads in the pass-
word for the blocks. This saves you time
•Optimal block protection because the
operators do not know the actual pass-
word
Section Know-how protection
(Page 64)
Instruction GetSMCinfo Using the GetSMCinfo instruction, you can
respond to information provided by the
memory card in the user program and, if
necessary, replace the memory card as a
precautionary measure. This makes sense in
particular if you write to the card often in your
application, for example if you use data logs.
Section SIMATIC memory card
- overview
Testing with breakpoints When testing with breakpoints, you run a
program from breakpoint to breakpoint. Test-
ing with breakpoints offers the following ad-
vantages:
•Testing SCL and STL program code using
breakpoints
•Narrowing down logic errors step-by-step
•Simple and rapid analysis of complex
programs before actual commissioning
•Acquisition of actual values within individ-
ual loop passes
•Utilization of breakpoints for program
validation also possible in SCL networks
with LAD / FBD possible
Section Test functions
(Page 105)

New properties / functions
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
14 Operating Instructions, 11/2019, A5E35873416-AC
What's new?
What are the customer benefits?
Where can I find information?
Changed
contents
UDP The maximum data length of the connection-
less network protocol UDP (UDP-Unicast and
UDP-Multicast) amounts to 2 KB.
You transfer a larger amount of data per UDP
packet via Industrial Ethernet.
Section Technical specifica-
tions (Page 119)
Fetching the identification
and maintenance data with
the Get_IM_Data instruction
Using the Get_IM_Data instruction, you can
read the identification and maintenance data
of the modules with little programming work.
With the Get_IM_Data instruction you can
access identification and maintenance data
(I&M) of a module in the user program. I&M
data is stored information in a module. This
allows you to
•Check the system configurations
•React to hardware changes
•React to hardware faults in the user pro-
gram.
Finding and elimination of hardware errors is
easier.
Section Fetching and entering
I&M data (Page 90)

CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 15
Product overview
3
3.1 Application
The CPU 1516pro-2 PN is a component of the ET 200pro distributed I/O system in degree of
protection IP65, IP66 and IP67. The CPU provides you with maximum performance
combined with excellent usability. It is suitable for a variety of demanding applications and
communication tasks in automation engineering. It features:
●Integrated PROFINET interfaces
●Integrated Web server
●Integrated functionalities:
–Trace
–Motion control
–Closed-loop control functions
●OPC UA functionalities:
–OPC UA server
–OPC UA client
Integrated technological functions
The CPU supports motion control functions. STEP 7 provides PLCopen standardized blocks
for configuring and connecting a drive to the CPU. Motion control functionalities support
speed-controlled, positioning and synchronous axes as well as external encoders.
For effective commissioning and fast optimization of drives and closed-loop controls, the
CPU supports extensive trace functions.
In addition to drive integration, the CPU has extensive closed-loop control functions, such as
easy-to-configure blocks for automatic optimization of the controller parameters for optimized
control quality.
Due to the supported technology functions, the CPU is suitable for controlling pumps, fans,
mixers, conveyor belts, lifting platforms, gate control systems, building management
systems, synchronized axes, cross cutters, etc.

Product overview
3.1 Application
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
16 Operating Instructions, 11/2019, A5E35873416-AC
Security Integrated
The CPU provides, in conjunction with STEP 7, password-based know-how protection
against unauthorized reading out or modification of the program blocks.
The copy protection provides reliable protection against unauthorized reproduction of
program blocks. With copy protection you associate individual blocks with the serial number
of the CPU or SIMATIC memory card.
In addition, you can assign various access rights to different user groups using four different
authorization levels.
Through an improved manipulation protection, the CPU detects modified or unauthorized
transmissions of engineering data.
Safety Integrated
The fail-safe CPU is intended for users who want to implement demanding standard and fail-
safe applications both centrally and decentrally.
The fail-safe CPU enables the processing of standard and safety programs on a single CPU.
This allows you to evaluate fail-safe data in the standard user program. As a result of this
integration, the system advantages and the extensive functionality of SIMATIC are also
available for fail-safe applications.
The fail-safe CPU is 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 according to
EN ISO 13849-1:2015
Additional password protection for F-configuration and F-program is set up for IT security.
System diagnostics
Integrated system diagnostics is enabled 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 messages related to drives. This information is available in RUN mode or in
STOP mode of the CPU. The CPU automatically updates diagnostic information when you
have configured new hardware components.
OPC UA
OPC UA is an open and vendor-neutral communication protocol. The CPU can be used as
an OPC UA server or as an OPC UA client. A runtime license is required to operate the OPC
UA functions.

Product overview
3.2 How it works
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 17
3.2 How it works
The CPU contains the operating system and executes the user program. The user program
is located on the SIMATIC memory card and runs in the work memory of the CPU.
The PROFINET interfaces on the CPU allow simultaneous communication with:
●PROFINET devices
●PROFINET controllers
●HMI devices
●Programming devices
●Other controllers and other systems
The CPU 1516pro-2 PN supports the (simultaneous) operation as an IO controller and
I-device.
IO controller
As an IO controller, the CPU 1516pro-2 PN sends and receives data from the connected IO
devices within a PROFINET IO system. You can operate the following IO devices on the
PROFINET interfaces of the CPU:
1st PROFINET interface (X1): maximum of 256 IO devices, of which a maximum of 64 in IRT
(Isochronous real-time).
2nd PROFINET interface (X2): maximum of 32 PROFINET devices
I-device
The "I-device" (intelligent IO device) functionality allows you to exchange data with an IO
controller. The CPU 1516pro-2 PN thus fulfills the role of an intelligent distributed pre-
processing unit of sub-processes. The I-device is connected to a "higher-level" IO controller
as an IO device.
Advantages:
●Interference-resistant configuration due to short signal and encoder wiring
●Reduced wiring effort for transmission of data via PROFINET

Product overview
3.3 Properties
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
18 Operating Instructions, 11/2019, A5E35873416-AC
3.3 Properties
Article number
6ES7516-2PN00-0AB0 (CPU 1516pro-2 PN)
6ES7194-4AP00-0AA0 (Connection module CM CPU 2PN M12 7/8")
View of the module
The figure below shows the CPU 1516pro-2 PN.
Figure 3-1 CPU 1516pro-2 PN

Product overview
3.3 Properties
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC 19
Properties
CPU 1516pro-2 PN has the following properties:
Property
Description
TextAdditional information
Supply voltage
You connect the 24 VDC supply voltage via the con-
nection module CM CPU 2PN M12, 7/8".
•Section Mounting and connecting
(Page 23)
•Operating instructions of the
ET 200pro Distributed I/O System
(https://support.industry.siemens.
com/cs/ww/en/view/21210852)
Expansion width
Max. 1.2 m (without module rack) Section Technical specifications
(Page 119)
PROFINET IO
PROFINET interface X1 The first PROFINET interface (X1) has three ports
(P1 R, P2 R and P3). In addition to basic PROFINET
functionality, it also supports PROFINET IO RT (real-
time) and IRT (isochronous real-time). P1 R and P2 R
are M12 circular sockets (with female contact insert).
They can also be used as ring ports for the configura-
tion of redundant ring structures in Ethernet (media
redundancy).
P3 is an RJ45-socket and is suitable, for example, for
connecting a PC, programming or HMI device.
PROFINET Function Manual
(https://support.industry.siemens.co
m/cs/ww/en/view/49948856)
PROFINET interface X2 The 2nd PROFINET interface (X2) has one port (P1).
P1 is an M12 circular socket (with female contact in-
sert). In addition to basic PROFINET functionality, P1
also supports PROFINET IO RT (real time). IRT
(Isochronous real-time) is not supported by this inter-
face.
Direct data exchange
between IO controllers
Real-time communication between IO controllers with
PROFINET IO IRT
Application examples:
•Motion control
•Project trace
Communication
(https://support.industry.siemens.co
m/cs/ww/en/view/59192925) function
manual