Siemens SIMATIC 277 IWLAN User manual

SIMATIC HMI
HMI Device
Mobile Panel 277 IWLAN
Getting Started
04/2008
A5E01004533-01
The following supplement is part of this documentation:
No. Designation Drawing number Edition
1 Product Information A5E02615843-01 08/2009

Safety Guidelines
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.
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 prop-
erty damage.
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
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into account.

Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and oper-
ation of a device/system may only be performed by qualified personnel. Within the context of the safety notes in
this documentation qualified persons are defined as persons who are authorized to commission, ground and label
devices, systems and circuits in accordance with established safety practices and standards.
Prescribed Usage
Note the following:
TrademarksAll names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publica-
tion 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 infor-
mation in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
WARNING
This device may only be used for the applications described in the catalog or the technical description and only in
connection with devices or components from other manufacturers which have been approved or recommended by
Siemens. Correct, reliable operation of the product requires proper transport, storage, positioning and assembly
as well as careful operation and maintenance.
Siemens AG
Automation and Drives
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A5E01004533-01
® 04/2008 Copyright © Siemens AG 2008. Technical data subject to change

1
HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Inhaltsverzeichnis
1 Welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Configuring the WLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 What is a WLAN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Configuring the Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Configuring a Mobile Panel for WLAN Use. . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.4 Setting up a Configuring PC for WLAN Use . . . . . . . . . . . . . . . . . . . . . . . . . 34
3 Creating the Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.1 Creating the “MOB_277_IWLAN” project. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.2 Configuring the Wireless Network Quality Display. . . . . . . . . . . . . . . . . . . . . 46
3.3 Configuration of multiple wireless networks . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.4 Transferring and Testing a Project. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4 Planning a Wireless Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.1 Interference factors in a wireless network . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2 Methods for Planning the Wireless Network. . . . . . . . . . . . . . . . . . . . . . . . . 55

2
1Welcome

3
HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Welcome
Welcome to the Getting Started for the Mobile Panel 277 IWLAN. Taking the
Mobile Panel 277 IWLAN as an example, we will show you how to set up and
configure a WLAN wireless network. Wireless operator-control and monitoring
devices are primarily used in applications where inaccessible process stations
have to be reached quickly: cranes, high-bay warehouses, telpher lines and
even physically separated subnets. With its WLAN flexibility, the
Mobile Panel 277 IWLAN offers you great flexibility.
The Getting Started will give you a brief introduction into WLAN technology.
You can use it to perform the following tasks:
• Setting up and configuring a WLAN
• Creating a project to display WLAN wireless network quality
And finally, we will give you some useful tips on how to plan a wireless network
in a production environment.
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1Welcome
4
HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
If you do not have the access point shown, you can also use a standard WLAN
router. In this event, the configuration may deviate from the configuration illus-
trated in this Getting Started.
Requirements
The access point is intended for Web Based Management.
The following WLAN configurationsettings are used by way of an example in this
Getting Started:
• IP address of the configuring PC: 192.168.1.100
• IP address of the Mobile Panel 277 IWLAN: 192.168.1.11
• IP address of the access point: 192.168.1.10
• Subnet mask: 255.255.255.0
• SSID WLAN: AP_transport_WLAN
• Network code (WPA2): Klh65Rff
Engineering offices which specialize in wireless network planning can also assist
you in planning.
This Getting Started presupposes that the configuring PC possesses WLAN-
capability. If you are in any doubt about this, contact your system administrator.
Note
The WLAN configuration described in this Getting Started also applies to
the fail-safe Mobile Panel 277F IWLAN. You can find out more on how to
configure the fail-safe Mobile Panel in the function manual entitled,
“Fail-safe operation of the Mobile Panel 277F IWLAN”.
The network code is used on
the access point and on the
Mobile Panel as a starting
p
oint for the encryption algo-
rithm. It contains up to 64
characters. Use the letters “A”
to “Z” and the numbers “0” to
“9”, mixing upper and lower-
case lettering.

5
HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01

6
2 Configuring the WLAN

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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
2.1 What is a WLAN?
Data is transmitted and received by radio waves in WLAN instead of via cables.
Mobile HMI devices such as the Mobile Panel 277 IWLAN conduct wireless
communication with the PLC via the access point, which makes them very fle-
xible to use, e.g. for maintenance and diagnostics.
Minimum configuration
A WLAN configuration comprises the following components, at least, in automa-
tion technology:
• Access point
The access point is the link which connects the wireless HMI device and the
wire-bound network, e.g. Ethernet.
• Configuring PC
Two tasks are performed with the configuring PC in the WLAN:
• You can use it to configure the access point's WLAN parameters.
• You can use WinCC flexible to configure the project for operating and
monitoring and transfer it via WLAN to the Mobile Panel.
• Mobile Panel 277 IWLAN
The Mobile Panel 277 IWLAN is a portable, wireless HMI device on which the
process is displayed and operated. The Mobile Panel 277 IWLAN can be
used to operate and monitor machines and plant control systems directly on-
site with visual contact.
The access points permit a
Mobile Panel to roam from
one access point's wireless
range to that of another
access point.

2 Configuring the
WLAN
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
• Plant control system
The PLC transmits the process data to the access point via Ethernet and
receives the operating data about the Mobile Panel from it.
How it works
WLAN uses electromagnetic waves for wireless data transmission.
The IEEE 802.11 process used for WLAN transmits on the frequencies 2.4 GHz
and 5 GHz which are available license-free to all countries. Only one station can
transmit at any one time on each of a frequency's channels (simplex mode).
Security
SIEMENS access points support all the current measures to secure your WLAN.
Take the following steps to avoid unauthorized access to the WLAN:
1. Select a secure encryption process.
All SIEMENS access points support WPA2 with AES and TKIP, which is
currently regarded as the most secure encryption process.
2. Password-protect the access point.
3. Select an SSID (service set identifier) which does not indicate the
hardware used.
A
transmitter's range at
2.4 GHz is between 30 and
100 m. The range depends on
the antenna, on objects in the
way indoors, on surfaces and
on materials. Operation at
5 GHz has a lower range,
although it is more resistant to
radio interference. All
SIEMENS access points are
designed for industrial use.
The access points support
MAC address filters as well as
the encryption processes
WEP, WPA2 with AES and
TKIP, EAP-TLS and EAP-
PEAP. You can find additional
information about the individ-
ual security processes in the
system manual entitled
“SIMATIC NET, Basics of
Industrial Wireless LAN”.

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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
2.2 Configuring the Access Point
Configuration during Commissioning with the Primary Setup
Tool
The Primary Setup Tool is used to configure the access point. The WLAN is set
up when you commission an access point. The Primary Setup Tool is supplied in
the access point package.
Requirements
• The access point has a power supply and is switched on.
• The Primary Setup Tool is installed on the configuring PC.
• The configuring PC is connected to the access point by a network cable.

2 Configuring the
WLAN
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Selecting the interface
1. Start “Primary Setup Tool”:

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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
2. Configure Primary Setup Tool in such a way that the LAN connection is
used to connect to the access point:

2 Configuring the
WLAN
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Configuring the interface
1. Configure the access point's Ethernet interface:

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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Uploading the configuration to the module
1. Upload the interface configuration to the module (access point):

2 Configuring the
WLAN
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
2. Close the Primary Setup Tool:
The access point is configured for commissioning. Further configuration is per-
formed via the Web Based Management.
Configuring WLAN Settings for the Access Point with Web
Based Management
The Web Based Management represents the homepage for the access point.
Configure the WLAN settings for the access point using the Web Based
Management. This includes the the security settings, such as encryption, or the
name of the WLAN.
Ensure that JavaScript is enabled in the browser and that the firewall permits
access to port 80.
Save the configuration data
for the access point. If you are
using a number of access
p
oints in a wireless network,
simply upload the saved con-
figuration data to the other
access points.

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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Logging on to the Web Based Management
1. Open the Web Based Management in the browser and log on to it using
the default access data for the Web Based Management
(password: “admin”):

2 Configuring the
WLAN
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01
Configuring the access point base parameters
1. Enter an IP address and subnet mask:
The addresses are identical to
the IP address and subnet
mask allocated by you for the
access point in the Primary
Setup Tool.