Helmholz NETLink User manual

www.helmholz.com
Version
3
Quick Start Guide
NETL ink® Ethernet Gateways
en
as of FW 2.60

Quick Start Guide NETL ink® Ethernet Gateways
2
Content
1. Introduction 3
2. Checking the Network Situation 3
3. Preparing the NETL ink® 4
4. IP Address Settings on the PG/PC Network Card 6
5. Establishing Access to the Integrated Web Interface 7
6. Integration of an NETLink® Adapter into the PG/PC Interface of the Engineering Software 10
7. WLAN Operating Mode (only NETL ink® WLAN) 12
8. LED Description 14
9. Tips and Information 15

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2. Checking the Network Situation
If a new NETLink® is to be added to an intranet, use the “ping” command to check in
the command line interpreter (cmd) whether a network subscriber with this address
already exists.
Note: First ask your network administrator whether the preset values are compatible
with your network and freely available.
2.1 Start cmd via the “Run” function
Start -> All Programs -> Accessories -> Run -> Open: cmd -> OK
All NETL ink® versions with the IP address: 192.168.4.49 and the subnet mask:
255.255.0.0 are supplied as standard.
1. Introduction
General note:
The functions described here relate to 32 and 64 bit Windows¹ operating systems.
Write down the MAC address of your NETL ink® before installing the adapter in your
system. This is required to activate the web interface!
The NETL ink® Ethernet versions enable implementation of TCP/IP on MPI/PPI/PRO-
FIBUS with up to 32 simultaneous connection channels. More detailed information
can be found in the manual.
This Quick Start Guide goes over the basic settings for the initial commissioning in a
local TCP/IP network.

Quick Start Guide NETL ink® Ethernet Gateways4
2.2 Display the computer’s network con guration
For initial commissioning, we recommend a separate PG/PC to NETLink® connection
without integration into the company network.
With the “ipcon g” command you can easily display the settings for your PG/PC LAN
network card.
With the setting for the computer network card that is shown here, the IP address
range is adjusted to the default value for NETL ink®.
3.2 TCP/IP connection
Connect the network connection of your PG/PC (LAN card) to the RJ45 LAN socket
of the NETL ink® adapter using an Ethernet cable (a 3 m CAT5 cable is included in the
delivery).
3. Preparing the NETL ink®
3.1 24 V power supply
Connect the NETL ink® to the MPI or PROFIBUS interface of your automation system.
The required 24 V are normally available at the bus interface. Alternatively, an exter-
nal DC voltage source can also be connected to the two-pole connector.

Quick Start Guide NETL ink® Ethernet Gateways 5
3.4 Termination (only NETL ink® PRO PoE and NETLink® WLAN)
The bus connector with PG socket makes it possible to plug in further bus partici-
pants. The terminating resistor must be inserted (ON) when the NETL ink® is plugged
in at the start or end of a bus segment. If this is not the case, the switch must be in
the OFF position.
3.3 Power over Ethernet connection (only NETLink® PRO PoE)
When the “Power over Ethernet” function is used, you will see a standard PoE injec-
tor shown in the graph by way of example. Alternatively, it can be installed in the
LAN route to supply the NETLink® PRO PoE with 48 V. PoE Injector

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All NETL ink® devices are supplied with the IP address 192.168.4.49. This means that
you will have to use the same address range for your computer. Please note that this
applies not only to the IP address, but to the subnet mask as well.
The IP address to be set here must fall within the “192.168.4.x” address range, the
subnet mask should be identical to that of the NETLink® (255.255.0.0).
No entries need to be made with the default gateway and preferred DNS server.
Once the settings are applied, the “LAN connection” should be recognized.
4. IP Address Settings on the PG/PC Network Card
Note: It is possible that for the following steps you may require admin rights to your PG/PC.
Start by opening the properties for your LAN connection.
For Windows¹ 7 and above you can access them as follows:
Start -> Control Panel -> Network and Sharing Center -> Change adapter settings
Open the Properties dialog box for the network connection that you want to use in
order to establish the LAN connection to the NETL ink®. To change your computer‘s
IP address, select „Internet Protocol (TCP/IP)“ and click on the „Properties“ button.

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Note: If your PG/PC is used in a network with proxy, it may be the case that you need to
deactivate the proxy server function in the conguration of your browser to be able to
establish a connection to the NETL ink®.
5. Establishing Access to the Integrated Web Interface
5.1 Save individual password in the NETLink®
When your PG/PC network card has accepted the new settings, start a browser
(Firefox, Chrome, Opera) and enter the IP address of the NETLink® in the address line
(URL) as follows: http://192.168.4.49.
As of NETL ink® rmware version 2.60, the user must dene an individual password
when calling up the web interface for the rst time. This must then be saved in
NETL ink®. The view shown on the right then appears.
In the delivery state, the default password consists of the last 8 Hex characters of
the device MAC address. This information is printed on the housing. Please note the
spelling as follows:
Example of MAC address: 00:06:71:19:1B:FC -> resulting password: 71191BFC
Note: The standard password „admin“ from older device versions may no longer be
used. The new password to be set by you may not exceed 8 characters and spaces are
not permitted.

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5.2 Standard login in the web interface
To be able to establish a connection to the web interface, with future login proce-
dures the corresponding user name, depending on the version of the device, must
be entered as follows:
-700-881-MPI21 = NETLink PRO PoE
-700-882-MPI21 = NETLink WLAN
-700-884-MPI21 = NETLink PRO Compact
Note: In all cases, the details entered are case-sensitive!
5.3 Change the conguration via the web interface
The device name, the password, the IP address and the subnet mask of the adapter
can now be recongured and stored in the device for example on the conguration
page. The NETL ink® can then be accessed in the LAN network via an IP address
which is changed here.
Note: If you change this IP address, please note that you will have to change the address
space (subnet mask) for your computer accordingly. See also Chapter 4 on page 6. Once
you have made and saved changes in the device, the NETL ink® automatically restarts.
It should be noted that the user names/passwords which you adapt in this conguration
interface cannot be reset by a type of “master reset”. If it is no longer possible to access
the security-relevant pages of the web interface with the login data you normally use,
please contact our technical support.

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5.4 WLAN conguration (only NETL ink® WLAN)
In the delivery state, the WLAN function is not active. This is activated under the
“WLAN Conguration” menu item. This is also where the network type is dened
and the security parameters are stored. The “Save Conguration” button is used to
permanently save the parameters in the NETLink® WLAN.
Further details are described in Chapter 7 starting on page 12.
5.5 Additional feature: Diagnostic function
The web interface has a diagnostic function implemented in it which can be accessed
via the status page.
It is important here for the adapter to be logged into the bus system. This can be
done via an engineering tool or with the “Go Online” button on the status page.
If the “Diagnostic Page” button is then activated, the recognized communication
parameters are listed or a status report is issued.

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6. Integration of an NETLink® Adapter into the PG/PC
Interface of the Engineering Software
Please install the NETLink® S7 NET driver on your PG/PC from the enclosed CD or
download its latest version at www.helmholz.com.
Notes: For the TIA Portal2 as well, the general assignments must be carried out only on
the PG/PC interface (accessible via the Windows¹ Control Panel).
If you‘re using an old operating system (< XP SP3) you have to add the interface
„NETLink®-S7-NET PRO“ manually with an intermediate step during the installation.
Click the “New” button under the “Local Connection” tab to add the adapter. You
can enter the IP address and the name of the adapter manually or you can use the
integrated search function of the driver. To do this, click on the button “Search
NETL ink® PRO Family…”.
To integrate the NETL ink® into the PG/PC interface, select the interface Parameter
Assignment (MPI, PPI or PROFIBUS) and open the properties of “NETL ink® PRO
Family”.

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When the “Close + Get” button is activated, your adapter appears in the list as an
active station. The access path to the connected controllers is now dened with this
setting and it is possible to work with the Simatic² engineering software.
Note: After installation, “Automatic transmission rate detection” is active in the bus
settings. There are also CPUs (or passive participants) that do not send any bus parame-
ters. If this is not the case, then an error message appears when the connection is being
established and the network-related parameters have to be manually adjusted (clear
checkmark).

Quick Start Guide NETL ink® Ethernet Gateways12
Ad-hoc mode
-Point-to-point connection with no more than 2 participants
-Very suitable for short distances
-Easy and quick to implement
-Maximum data transfer rate 11 Mbit/s
Infrastructure mode
-Maximum transmission rate of 54 Mbit/s to NETL ink® WLAN
-One access point organizes the connections to other network participants and the
internet
-If several access points are combined, the range in a network increases
-The NETL ink® WLAN can be used in existing infrastructures
7. WLAN Operating Mode (only NETL ink® WLAN)
General information about the wireless network topologies:
PC
PLC
NETLink® WLAN
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
NETLink
PG/PC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
WLAN access point
Ethernet
PLC
NETLink® WLAN
PG/PC
PG/PC

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7.2 Preparations for activation of the infrastructure mode
-The SSID of the access point must be entered in the NETLink® WLAN.
-The encryption settings of the NETLink® WLAN must match those of the access
point (these details can be obtained from the administrator that is in charge of the
infrastructure network).
-The IP settings of the NETLink® WLAN may need to be adapted (e.g. DHCP); infor-
mation about this can be obtained from the relevant administrator.
7.1 Preparations for activation of the ad-hoc mode
-The WLAN network card of the PG/PC is to be assigned a xed IP address – match-
ing the address range of the NETL ink® WLAN.
-An active proxy server function must be switched off.
-It is possible that other network devices may need to be deactivated in the PG/PC
(relevant if they are in the same IP address segment of the WLAN network card).
-The operating system opens an information box when a wireless network is within
range. A connection can then be established by means of the corresponding
conguration aids.
Note: This chapter describes how you establish an unencrypted connection. Further
information about this can be found in the NETLink® manual under Chapter 7.7.4.

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8.3 NETL ink® WLAN
Active LED
Green Non-cyclical ashing indicates WLAN activity. During cycli-
cal ashing, WLAN partners in range are searched for in
ad hoc mode and infrastructure mode.
DIAG LED
Orange Diagnoses the WLAN module and only ashes during the
switch-on process. Otherwise always off in normal opera-
tion (constant light indicates a defect).
Power LED
Green Is always on and indicates the general readiness for oper-
ation.
Online LED
Green Only active when the adapter has successfully logged into
the MPI/ PPI/PROFIBUS.
Data LED
Green Usually in ashing mode (when a data exchange is taking
place).
8. LED Description
8.1 NETL ink® PRO Compact
8.2 NETL ink® PRO PoE
Note: The red LEDs are only active in the event of a rmware update or when there are
communication errors!
Power LED
Blue Is always on and indicates the general readiness for oper-
ation. A ashing Power LED indicates a non-existent/faulty
TCP/IP connection.
BUS LED
Red/green (orange) Flashes orange when the adapter attempts to log in on the
MPI/PPI/PROFIBUS. When this is successful, the LED switch-
es to a green constant light.
Active LED
Green Flashes green (when a data exchange is taking place).
Power LED
Green Is always on and indicates the general readiness for opera-
tion. A ashing Power LED indicates a non-existent TCP/IP
connection.
Active LED
Red/green Only active when the adapter has successfully logged into
the MPI/ PPI/PROFIBUS.
Data LED
Red/green Usually in ashing mode (when a data exchange is taking
place).

Quick Start Guide NETL ink® Ethernet Gateways 15
9. Tips and Information
If despite con guring all network parameters correctly you are still unable to estab-
lish a connection, it may be necessary to deactivate other network devices in the PG/
PC (relevant if they are in the same IP address segment of the LAN network card).
You will  nd other helpful documents, speci cations and manuals in the Support/
Download section at www.helmholz.com:
-Application examples with RFC 1006 (ISO on top of TCP/IP)
-Communication connection with the project-speci c interface
-Examples of CPU-to-CPU communication
9.1 Update and diagnostics software SHTools
With the aid of our freely available diagnostics and update software SHTools, you
can, for example, carry out  rmware updates yourself. In order to ensure the com-
plete functional scope of your NETLink® adapter, we recommend that you regularly
update your devices. The software’s latest version is available for download at
www.helmholz.com.
First connect your Helmholz adapter to your PG/PC before you open SHTools.
Below you can  nd a description of the screenshot to the right:
a) Connected devices are found automatically after the program is started through
the menu-guided user interface.
b) With the aid of the update button, the internal binary directory of SHTools is
browsed for current  rmware  les and displayed.
c) Start the update procedure with the appropriate button if necessary. Adapter
parameters that you have already saved are not overwritten in this action.
a)
c)
b)

Helmholz GmbH & Co. KG | Hannberger Weg 2 | 91091 Großenseebach | Germany | Phone [phone] | Fax [phone] | [email protected] | www.helmholz.com
Note
The contents of this Quick Start Guide have been checked by us so as to ensure that they match the hardware and software described. However, we assume no liability for any existing
differences, as these cannot be fully ruled out.
The information in this Quick Start Guide is, however, updated on a regular basis. When using your purchased products, please make sure to use the latest version of this Quick Start
Guide, which can be viewed and downloaded on the Internet at www.helmholz.com.
Our customers are important to us. We are pleased to receive suggestions for improvement and new impulses.
1) Windows is a registered trademark of the Microsoft Corporation.
2) Simatic and TIA Portal are registered trademarks of Siemens AG.