Helmholz Profinet 700-850-4PS01 User manual

Helmholz GmbH & Co. KG | Hannberger Weg 2 | 91091 Großenseebach | Germany
Phone [phone] | Fax [phone] | [e-mail] | www.helmholz.com
PROFINET switch 4/8/16-port
Manual
Version 1 | 20.02.2020 | as of firmware V 1.08.100
Link to the latest version of
the manual

Notes
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Copyright © 2020 by
Helmholz GmbH & Co. KG
Hannberger Weg 2 | 91091 Großenseebach
STEP, TIA, and SIMATIC are registered trademarks of Siemens AG.
Windows is a registered trademark of Microsoft Corporation.
Revision record:
Version
Date
Change
1
14.2.20
First version / Firmware V1.04

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Contents
1General............................................................................................................. 6
1.1 Target audience for this manual............................................................................................... 6
1.2 Safety instructions ................................................................................................................... 6
1.3 Note symbols and signal words ............................................................................................... 7
1.4 Intended use ........................................................................................................................... 8
1.5 Improper use........................................................................................................................... 8
1.5.1 Liability ................................................................................................................................ 9
1.5.2 Disclaimer of liability............................................................................................................ 9
1.5.3 Warranty.............................................................................................................................. 9
2Security recommendations............................................................................. 10
3Overview ........................................................................................................11
3.1 Setup..................................................................................................................................... 12
3.2 Buttons.................................................................................................................................. 12
3.2.1 “RST” button (Reset).......................................................................................................... 12
3.2.2 “FCN” button (Function) ................................................................................................... 12
3.3 LEDs status information ......................................................................................................... 13
3.3.1 LEDs at the Ethernet ports .................................................................................................. 13
4Installation and removal................................................................................. 14
4.1 Access restriction ................................................................................................................... 14
4.2 Electrical installation .............................................................................................................. 14
4.3 Protection against electrostatic discharges ............................................................................. 14
4.4 Overcurrent protection.......................................................................................................... 14
4.5 EMC protection ..................................................................................................................... 14
4.6 Operation.............................................................................................................................. 14
4.7 Recycling / WEEE ................................................................................................................... 15
5Preparing the PROFINET switch ......................................................................16
5.1 Connection ........................................................................................................................... 16
5.2 Install GSDML file .................................................................................................................. 16
5.3 Configuration in the hardware configuration......................................................................... 17
5.4 Setting the port properties..................................................................................................... 19
5.5 Topology detection ............................................................................................................... 20
5.6 Assign the PROFINET switch a name ...................................................................................... 21
5.7 Media redundancy protocol (MRP) ........................................................................................ 22

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6Configuration and diagnosis via the web interface ........................................23
6.1 Web interface ........................................................................................................................ 23
6.2 System Menu ........................................................................................................................ 23
6.2.1 System Status .................................................................................................................... 23
6.2.2 Network ............................................................................................................................ 24
6.2.3 Restart and reset ................................................................................................................ 24
6.2.4 Password ........................................................................................................................... 25
6.2.5 Event Log........................................................................................................................... 25
6.2.6 Firmware Upgrade ............................................................................................................. 26
6.2.7 Time settings ..................................................................................................................... 27
6.3 Menu Agent .......................................................................................................................... 28
6.3.1 Ethernet-based administration ........................................................................................... 28
6.3.2 Web................................................................................................................................... 28
6.3.3 Identification and maintenance.......................................................................................... 28
6.3.4 SNMP ................................................................................................................................ 28
6.3.5 Ring Redundancy Mode..................................................................................................... 29
6.4 Menu Switch ......................................................................................................................... 30
6.4.1 Port status.......................................................................................................................... 30
6.4.2 Port mirroring.................................................................................................................... 30
6.4.3 ARP table ........................................................................................................................... 31
6.4.4 LLDP .................................................................................................................................. 31
6.4.5 DCP ................................................................................................................................... 32
6.4.6 Class of Service / Prioritized forwarding of time-sensitive data............................................ 32
6.4.7 MAC Table / Forwarding rules ........................................................................................... 33
6.5 Network Statistics .................................................................................................................. 34
6.5.1 Statistics on transmission errors ......................................................................................... 34
6.6 Web interface logout ............................................................................................................. 35
7FAQ.................................................................................................................36
7.1 Why do you need a PROFINET switch for a PROFINET network? ............................................. 36
7.2 Is the PROFINET switch “real time-compatible”? .................................................................... 36
7.3 What do the LEDs BF and SF mean? ....................................................................................... 37
7.4 What is “Device exchange during operation”, and what role does the PROFINET switch play
here? 37
7.5 Why should PROFINET devices have PROFINET certification?.................................................. 37
7.6 What is behind the PROFINET conformance classes A, B, C?................................................... 37

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7.7 Can the PROFINET switch also transmit 1 GBit?...................................................................... 38
7.8 Can the PROFINET switch also be operated at 10 Mbit? ......................................................... 38
7.9 Which Ethernet cable types can be used for PROFINET? ......................................................... 38
7.10 Can PROFIsafe be transmitted via the PROFINET switch?........................................................ 38
7.11 Why does the PROFINET switch have its own IP address and a PROFINET name?.................... 38
7.12 What are I&M data?............................................................................................................... 38
7.13 Can I also use the PROFINET switch in other industrial networks without PROFINET?............. 38
7.14 What happens with a PROFINET participant when the power supply fails? ............................ 39
7.15 Why is “Port Mirroring” necessary?........................................................................................ 39
7.16 More information on PROFINET ............................................................................................. 39
8Technical data ................................................................................................40
8.1 PROFINET switch 4-port......................................................................................................... 40
8.2 PROFINET switch 8-port......................................................................................................... 41
8.3 PROFINET switch 16-port....................................................................................................... 42
8.4 Dimensioned drawing ........................................................................................................... 43

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1General
This operating manual applies only to devices, assemblies, software, and services of Helmholz GmbH
& Co. KG.
1.1 Target audience for this manual
This description is only intended for trained personnel qualified in control and automation
engineering who are familiar with the applicable national standards. For installation, commissioning,
and operation of the components, compliance with the instructions and explanations in this
operating manual is essential.
Configuration, execution, and operating errors can interfere with the proper operation of the PN Switch
and result in personal injury, as well as property or environmental damage. Only suitably qualified
personnel may operate the devices!
The specialist personnel is to ensure that the application or the use of the products described fulfills all
safety requirements, including all applicable laws, regulations, provisions, and standards.
1.2 Safety instructions
The safety instructions must be observed in order to prevent harm to living creatures, material goods,
and the environment. The safety notes indicate possible hazards and provide information about how
hazardous situations can be prevented.

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1.3 Note symbols and signal words
If the hazard warning is ignored, there is an imminent danger to life and health of people from electrical
voltage.
If the hazard warning is ignored, there is a probable danger to life and health of people from electrical
voltage.
If the hazard warning is ignored, people can be injured or harmed.
Draws attention to sources of error that can damage equipment or the environment.
Gives an indication for better understanding or preventing errors.

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1.4 Intended use
The PROFINET switch (referred to as “the device” in the following) can be used for the networking of
Ethernet networks with the PROFINET protocol .
All components are supplied with a factory hardware and software configuration. The user must carry
out the hardware and software configuration for the conditions of use. Modifications to hardware or
software configurations that extend beyond the documented options are not permitted and nullify
the liability of Helmholz GmbH & Co. KG.
The device may not be used as the only means for preventing hazardous situations on machinery and
systems.
Successful and safe operation of the device requires proper transport, storage, setup, assembly,
installation, commissioning, operation, and maintenance.
The ambient conditions indicated in the technical specifications must be adhered to.
The device has a protection rating of IP 20 and must be installed in an electrical operating room or a
control box/cabinet in order to protect it against environmental influences. To prevent unauthorized
access, the doors of control boxes/cabinets must be closed and possibly locked during operation.
1.5 Improper use
The consequences of improper use may include personal injury to the user or third parties, as well as
property damage to the control system, the product, or the environment. Use the device only as
intended!

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1.5.1 Liability
The contents of this manual are subject to technical changes resulting from the continuous
development of products of Helmholz GmbH & Co. KG. In the event that this manual contains
technical or clerical errors, we reserve the right to make changes at any time without notice.
No claims for modification of delivered products can be asserted based on the information,
illustrations, and descriptions in this documentation. Beyond the instructions contained in the
operating manual, the applicable national and international standards and regulations must also be
observed in any case.
1.5.2 Disclaimer of liability
Helmholz GmbH & Co. KG is not liable for damages if these were caused by use or application of
products that was improper or not as intended.
Helmholz GmbH & Co. KG assumes no liability for any printing errors or other inaccuracies that may
appear in the operating manual, unless there are serious errors of which Helmholz GmbH & Co. KG
was already demonstrably aware.
Beyond the instructions contained in the operating manual, the applicable national and
international standards and regulations must also be observed in any case.
Helmholz GmbH & Co. KG is not liable for damage caused by software that is running on the user’s
equipment that compromises, damages, or infects additional equipment or processes through the
remote maintenance connection, and which triggers or permits unwanted data transfer.
1.5.3 Warranty
Report any defects to the manufacturer immediately upon discovery of the defect.
The warranty is not valid in case of:
•Failure to observe these operating instructions
•Use of the device that is not as intended
•Improper work on and with the device
•Operating errors
•Unauthorized modifications to the device
The agreements met upon contract conclusion under “General Terms and Conditions of Helmholz
GmbH & Co. KG” apply.

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2Security recommendations
The PROFINET switches are network infrastructure components, and thus important elements in the
security considerations of a system or network. When using the PROFINET switches, therefore please
consider the following recommendations in order to prohibit unauthorized access to plants and
systems.
General:
•Ensure at regular intervals that all relevant components fulfill these recommendations and
possibly any other internal security guidelines.
•Evaluate your system holistically with a view to security. Use a cell protection concept with
corresponding products, such as the Helmholz “WALL IE”.
You can find extensive information, for example, in the “ICS Security
Compendium” of the Federal Office for Information Security (BSI):
https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/ICS/
ICS-Security_kompendium_pdf.pdf
Physical access:
•Limit physical access to components of relevance to security to qualified personnel.
Security of the software:
•Always keep the firmware of all communications components up to date.
•Inform yourself regularly of firmware updates for the product.
Information on this topic can be found in section 12.
•Only activate protocols and functions you really need
Passwords:
•Define rules for usage of the devices and the awarding of passwords.
•Change standard passwords
•Only use strong passwords. Avoid weak passwords like, for example, “password1”, “123456789”,
or similar.
•Ensure that all passwords are protected and inaccessible to unauthorized personnel.
•Don’t use one password for various users and systems.

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3Overview
The managed PROFINET switch supports PROFINET according to Conformance Class B and offers
transmission security through ring redundancy as an MRP client.
One of the most important functions of a PROFINET switch is the prioritizing of the PROFINET frame
traffic in the machine network. The managed switch can differentiate whether the frame is a web
query, an FTP file transmission, a media stream, or a PROFINET frame. In the case of a high
transmission load, the important frames can thus be prioritized in order to prevent frame losses.
The supported PROFINET protocols, such as LLPD, DCP, or even diagnosis alarms, can be easily
configured and administered.
Technical advantages when using a PROFINET switch
•Prioritizing of PROFINET frames
•Allocation of a network configuration on the basis of the device name (SIMATIC Manager:
“Assign IP address through IO controller”)
•Definition of transfer procedure and speed of a port (SIMATIC Manager: “Transfer medium /
duplex”)
•Neighborhood detection
•Device exchange without programming device
•MRP ring redundancy
•Each port can be activated or deactivated
•Diagnostic messages for network problems
•Identification and maintenance data
A GSDML file (download from www.helmholz.de) is required for configuration as a PROFINET device.
Settings made with the web interface are overwritten by the configuration.

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3.1 Setup
Depending upon the model, the PROFINET switch is equipped with 4/8 or 16 Ethernet ports (RJ45).
The switch has two recessed function buttons (“RST” and “FCN”) as operating elements. The status
display on the device takes place via four LEDs (PWR, RUN, BF, SF), as well as through the LEDs at the
Ethernet ports.
3.2 Buttons
The PROFINET switch has two buttons, “FCN” and “RST”, which are found at the top behind the front
plate. For purposes of protection against incorrect operation, the buttons can only be accessed with a
small object (paper clip).
3.2.1 “RST” button (Reset)
The “RST” button triggers an immediate restart of the PROFINET switch, in the course of which all
saved settings are retained.
3.2.2 “FCN” button (Function)
The PROFINET switch can be reset to factory settings with the “FCN” button: If the “FCN” button is
pressed during the run-up phase of the switch, the orange “SF” LED begins to flash. The blinking
indicates that the switch will be immediately reset to factory settings and restarted as soon as the
switch is released. The run-up phase is indicated by the blinking of the “RUN” LED.

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3.3 LEDs status information
PWR
Off
No power supply or device defective
On
Device is correctly supplied with voltage
RUN
On
Device is ready to operate
Flashing
Device is starting up
Flashing synchronous
with BF and SF LED
PROFINET function device identification
BF
On
Bus error, no configuration
Flashing synchronous
with RUN and SF LED
PROFINET function device identification
SF
On
System error, network status in error
Flashing synchronous
with RUN and BF LED
PROFINET function device identification
RJ45
LEDs
Green (Link)
Connected
Orange (Act)
Data transfer at the port
The PWR LED is on as soon as the PN switch is connected to a power supply.
The RUN LED is on as soon as the PN switch is ready to operate. The LED flashes before the PN switch
is ready to operate. Directly after the device is switched on or reset, the LED is switched on for a short
time for the function test.
The BF LED is on as long as there is no PROFINET connection. The LED is off when a PROFINET
connection exists. Directly after the device is switched on or reset, the LED is switched on for a short
time for the function test.
The SF LED is on when there is a PROFINET alarm at the PN switch. The LED is off when there is no
PROFINET alarm. Directly after the device is switched on or reset, the LED is switched on for a short
time for the function test.
The LEDs RUN, BF, and SF all flash synchronously when the user activates the PROFINET function for
device identification.
3.3.1 LEDs at the Ethernet ports
The green LED shows the existence of an Ethernet connection. There is a
connection when it is on. There is no connection when it is off.
The orange LED shows the data traffic. It is off when no data packages run via the
port. It is on when data packages run via the port.

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4Installation and removal
4.1 Access restriction
The modules are open operating equipment and must only be installed in electrical equipment
rooms, cabinets, or housings.
Access to the electrical equipment rooms, cabinets, or housings must only be possible using a tool or
key, and access should only be granted to trained or authorized personnel.
4.2 Electrical installation
Observe the regional safety regulations.
4.3 Protection against electrostatic discharges
To prevent damage through electrostatic discharges, the following safety measures are to be followed
during assembly and service work:
•Never place components and modules directly on plastic items (such as polystyrene, PE film) or
in their vicinity.
•Before starting work, touch the grounded housing to discharge static electricity.
•Only work with discharged tools.
•Do not touch components and assemblies on contacts.
4.4 Overcurrent protection
Overcurrent protection isn’t necessary as the device transports no load current. The power supply of
the device electronics is to be secured externally with a fuse of maximum 1 A (slow-blowing).
4.5 EMC protection
To ensure electromagnetic compatibility (EMC) in your control cabinets in electrically harsh
environments, the known rules of EMC-compliant configuration are to be observed in the design and
construction.
4.6 Operation
Operate the device only in flawless condition. The permissible operating conditions and performance
limits must be adhered to.
Retrofits, changes, or modifications to the device are strictly forbidden.
The device is a piece of operating equipment intended for use in industrial plants. During operation,
all covers on the unit and the installation must be closed in order to ensure protection against
contact.

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4.7 Recycling / WEEE
The Helmholz GmbH & Co. KG company is registered as a manufacturer with the brand HELMHOLZ
and the device type “Small devices of information and telecommunications technology for exclusive
usage in other than private households”, and the following registration data:
Helmholz GmbH & Co. KG,
Seat of the company: 91091 Großenseebach,
Address: Hannberger Weg 2,
Name of the authorized representative: Carsten Bokholt,
Registration number: DE 44315750.
The electrical devices described in this document are to be recycled. Pursuant to Directive 2012/19/EU
on Waste of Electrical and Electronic Equipment (WEEE), they may not be disposed of by way of
municipal disposal companies.

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5Preparing the PROFINET switch
5.1 Connection
The PROFINET switch must be supplied with 24 V DC at the wide range input 18 – 30 V DC via the
provided connector plug. The RJ45 sockets “P1 – P4” (4-port switch), “P1 – P8” (8-port switch) and
“P1 – P16” (16-port switch) serve the connection of the network participants
(PROFINET or Ethernet).
The inputs IN1 and IN2 do not yet have a function in the current firmware version but will be
available in a later firmware version for additional functionality.
The housing of the PROFINET switch is not grounded. Please connect the functional grounding
connection (FG named FE on front) of the PROFINET switch correctly with the reference potential.
5.2 Install GSDML file
Please download the GSDML file under www.helmholz.de or scan the following QR code:
PROFINET switch 4-port PROFINET switch 8-port PROFINET switch 16-port

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You can find in the “Manage general station description files” dialog in TIA Portal in the menu
“Options”.
5.3 Configuration in the hardware configuration
Following installation, the PROFINET switch can be found in the hardware catalog under “Other field
devices -> PROFINET IO -> Network Components -> Helmholz GmbH & Co. KG -> Helmholz PN
switch”. Add the “PROFINET switch, 4-port”, “PROFINET switch 8-port” or “PROFINET switch, 16-
port” device to the project and connect it with your PROFINET network.
By calling up the object properties, you must assign the PROFINET switch a unique PROFINET name
in the project and check the IP address for plausibility.
The real device must later be assigned the same name as in the project.

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5.4 Setting the port properties
Each port of the PROFINET switch can be individually configured.
“Activate this port”
The port can be switched off here. This option is recommended
when the port shouldn’t be used. Unauthorized trespass into the
network is prevented.
Transmission rate / duplex
“Automatic”
The port synchronizes itself automatically with the
communication partner (auto-negotiation).
Transmission rate / duplex
“TP 100 Mbps full duplex”
Fixed specification of the transmission rate. This option is
recommended when connecting PROFINET IO devices.
Monitor Send a diagnosis by Link Down
Enable autonegotiation
Automatic recognition of the transmission speed and the cable
type (cross or patch cable)
End of detection of
accessible devices
The DCP telegrams for recording accessible devices are not
forwarded from this port. Subscribers behind this port are no
longer displayed under "Accessible subscribers" in the topology.
Users behind this port can no longer be reached by the CPU.
End of topology discovery
LLDP frames for topology discovery are not forwarded on this port.

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5.5 Topology detection
The PROFINET switch supports the mechanisms for neighborhood detection (LLDP). With this
function, it is possible to detect the topology of a PROFINET network, or to specify it for purposes of
checking for the correct structuring by the configuration.
If the topology was prescribed in the configuration, neighboring devices can also be assigned the
PROFINET name in the event of the replacement of a device. This makes the recognition and testing
of the network topology and the “device exchange in operation” of connected PROFINET participants
possible.