Siemens SCALANCE W788-1PRO, SCALANCE W788-1RR, SCALANCE W788-2RR, SCALANCE W788-2PRO Operating Instructions Manual

SIMATIC NET

perating Instructions O

SCALANCE W788-1PRO (Access Point)

SCALANCE W788-2PRO (Dual Access Point)

Preface, Contents

Basic Information on Wireless LAN Communication

Description of the SCALANCE W78x

SCALANCE W788-1RR (Access Point iPCF)

SCALANCE W788-2RR

Dual Access Point iPCF) (

Commissioning

Configuring the IP Address with the Primary Setup Tool

Configuration Using the Wizards of Web Based Management

Configuration Using Web Based Management and the Command Line Interface

Technical Specifications

C79000-G8976-C184-07

Release 10/2006

Approvals, Appendix, Glossary, Index

Classification of Safety-Related Notices

This document contains notices which you should observe to ensure your own personal safety, as well as to protect the product and connected equipment. These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level 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 can result if proper precautions are not taken.

Caution

with warning triangle indicates that minor personal injury can result if proper precautions are not taken.

Caution

without warning triangle indicates that damage to property can result if proper precautions are not taken.

Notice

indicates that an undesirable result or status can occur if the relevant notice is ignored.

Note

highlights important information on the product, using the product, or part of the documentation that is of particular importance and that will be of benefit to the user.

The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable fo damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved.

Siemens AG Automation and Drives Industrial Communication Postfach 4848, D-90327 Nürnberg

Siemens Aktiengesellschaft Printed in the Federal Republic of Germany

Disclaimer

We have checked the contents of this manual for agreement with the hardware and software described. Since deviations cannot be preclude

entirely, we cannot guarantee full agreement. However, the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions. Suggestions for improvement are welcome.

C79000-G8976-C184-07 Technical data subject to change.

Trademarks

SIMATIC®, SIMATIC NET®, SINEC®, SIMATIC NET Networking for Industry® and SCALANCE® are registered trademarks of Siemens AG.

Third parties using for their own purposes any other names in this document which refer to trademarks might infringe upon the rights of the trademark owners.

Safety Instructions Regarding your Product

Before you use the product described here, read the safety instructions below thoroughly.

Personnel Qualification Requirements

Only qualified personnel should be allowed to install and work on this equipment. Qualified personnel as referred to in this manual or in the warning notes are defined as persons who are familiar with the installation, assembly, startup and operation of this product and who possess the relevant qualifications for their work, e.g.:

● Training in or authorization for connecting up, grounding or labeling circuits and devices or systems in accordance with current standards in safety technology

● Training in or authorization for the maintenance and use of suitable safety equipment in accordance with current standards in safety technology

● First aid qualification

Correct Usage of Hardware Products

Please note the following regarding the correct usage of hardware products:

Caution

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.

This product can only function correctly and safely if it is transported, stored, set up, and installed correctly, and operated and maintained as recommended.

Before you use the supplied sample programs or programs you have written yourself, make certain that no injury to persons nor damage to equipment can result in your plant or process.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Prior to Startup

Before putting the product into operation, note the following warning:

Caution

Prior to startup you must observe the instructions in the relevant documentation. For ordering data of the documentation please refer to the catalogs or contact your local SIEMENS representative.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Preface

Validity of the Operating Instructions

These Operating Instructions cover the following products:

● SCALANCE W788-1PRO

● SCALANCE W788-2PRO

● SCALANCE W788-1RR

● SCALANCE W788-2RR

Where the description applies to all products, the name SCALANCE W78x is used. Where the description applies to a specific product, the full name of the product is used.

These operating instructions apply to the following software versions:

● SCALANCE W78x firmware as of Version 3.1

● Primary Setup Tool as of Version 3.1

Purpose of the Operating Instructions

These operating instructions are intended to provide you with the information you require to install, commission and operate the SCALANCE W78x correctly. It explains how to configure the SCALANCE W78x and how to integrate the SCALANCE W78x in a WLAN network.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Orientation in the Documentation

Apart from the operating instructions you are currently reading, the following documentation is also available from SIMATIC NET on the topic of Industrial Wireless LANs:

● Operating Instructions (compact) SCALANCE W7xx This document is supplied with the device on paper and contains a concise summary of the most important information required to use the following products:

 SCALANCE W788-1PRO  SCALANCE W788-2PRO  SCALANCE W788-1RR  SCALANCE W788-2RR  SCALANCE W744-1PRO  SCALANCE W746-1PRO  SCALANCE W747-1RR

Preface

● Operating Instructions SCALANCE W74x The comprehensive documentation for the following products:

 SCALANCE W744-1PRO  SCALANCE W746-1PRO  SCALANCE W747-1RR

The document contains all the information for the setup, commissioning and operation of these devices. The SCALANCE W74x is connected to a PC / PLC by an Ethernet cable and allows the attachment of these devices to a wireless network; in other words, it is a gateway from a wired to a wireless network.

● System Manual Wireless LAN Basics This includes not only the description of the physical basics and an outline of the most important IEEE standards but also information on data security and a description of industrial uses of wireless LAN. You should read this manual if you want to set up WLAN networks with a more complex structure (not only connections between two devices).

● System Manual RCoax This system manual contains both an explanation of the technical basis of leaky feeder cables as well as a description of the SIMATIC NET RCoax components and their functionality. The installation / commissioning and connection of RCoax components is explained.

● Manual IWLAN/PB Link PNIO Gateway for Industrial Ethernet The user documentation for the IWLAN/PB Link. This device is a gateway between IWLAN and PROFIBUS.

● Operating Instructions CP 7515 The comprehensive user documentation for the CP 7515 communications processor with all the information required to operate this device. The CP 7515 is inserted in a CardBus / PC-card (32-bit) slot and allows attachment of the PC/PG to a wireless network.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

● Operating Instructions (compact) CP 7515 This document is supplied with the device on paper and contains a concise summary of the most important information required to use the CP 7515.

● Manual CP 1515 The comprehensive user documentation for the CP 1515 communications processor with all the information required to operate this device. The CP 1515 is inserted in a PC-card slot (Type II) and allows attachment of the PC/PG to a wireless network.

Preface

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Biological Compatibility

With regard to the question of whether electromagnetic fields (for example in association with industrial wireless LANs) can put human health at risk, we refer to a publication of BITKOM (German Association for information Technology, Telecommunication and New Media e. V.), dated December 2003:

"The same regulations for the protection of health for all other radio applications also apply to WLAN devices. These regulations are based on

the protection concept of ICNIRP2 or the corresponding recommendation of the European Council.

The independent German radiation protection commission (SSK) was commissioned by the federal German ministry of the environment to investigate the possible dangers - thermal and non-thermal - resulting from

electromagnetic fields and came to the following conclusions3:

"The SSK comes to the conclusion that even after evaluation of the latest scientific literature, there is no new scientific evidence regarding proven adverse effects on health that causes any doubt regarding the scientific evaluation on which the protection concept of the ICNIRP or the European Council recommendation."

Preface

The SSK also concludes that below the current limit values, these is also no scientific suspicion of health risks.

This assessment agrees with those of other national and international scientific commissions and of the WHO (

www.who.int/emf).

Accordingly and in view of the fact that WLAN devices are significantly below the scientifically established limit values, there are no health risks from the electromagnetic fields of WLAN products.

International Council on Non-Ionizing Radiation Protection

'Limit Values and Precautionary Measures to Protect the General Public from Electromagnetic

Fields' Recommendation of the Radiation Protection Commission (SSK) with scientific justification, Issue 29, 2001.

You will find further information on this topic under the following URL:

www.bitkom.org

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Contents

1 Basic Information on Wireless LAN Communication ............................................... 13

1.1 Network Structure .............................................................................................. 13

1.2 WLAN Communication ...................................................................................... 19

1.2.1 MAC-based Communication.............................................................................. 19

1.2.2 IP-based Communication .................................................................................. 20

2 Description of the SCALANCE W78x ......................................................................... 21

3 Commissioning............................................................................................................. 31

3.1 Lightning Protection, Power Supply, and Grounding......................................... 31

3.2 Assembly and Connectors................................................................................. 33

3.3 Cabling for Power Supply and Ethernet ............................................................ 35

3.3.1 General Notes.................................................................................................... 35

3.3.2 Assembling an IE Hybrid Cable 2 x 2 + 4 x 0.34 with an IE IP 67 Hybrid

Connector .......................................................................................................... 36

3.3.3 Assembling an IE FC TP Standard Cable 4 x 2 GP or

IE FC TP Flexible Cable 4 x 2 GP with an IE IP 67 Hybrid Connector ............. 40

3.3.4 Pinout of the M12 Connector............................................................................. 43

3.4 Commissioning with the PRESET PLUG .......................................................... 44

4 Configuring the IP Address with the Primary Setup Tool ........................................ 47

4.1 Introduction ........................................................................................................ 47

4.2 Installation of the DLC Protocol in Windows XP Professional........................... 49

4.3 Installation of the DLC Protocol in Windows 2000 Professional SP2................ 50

4.4 Installing the Primary Setup Tool....................................................................... 51

4.5 Working with the Primary Setup Tool ................................................................ 52

4.5.1 Primary Setup Tool via the Command Line....................................................... 56

5 Configuration Using the Wizards of Web Based Management................................ 57

5.1 Introduction ........................................................................................................ 57

5.2 Starting Web Based Management and Logging On.......................................... 59

5.2.1 Connection over HTTPS.................................................................................... 60

5.3 Selecting the Wizards........................................................................................ 61

5.4 Basic Wizard...................................................................................................... 63

5.4.1 IP Settings ......................................................................................................... 63

5.4.2 System name..................................................................................................... 65

5.4.3 Country Code..................................................................................................... 66

5.4.4 Wireless Settings in Access Point Mode ........................................................... 67

5.4.5 Wireless Settings in Client Mode....................................................................... 68

5.4.6 Adopt MAC Address Settings (Client Mode only).............................................. 69

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Contents

5.4.7 Channel Settings (only in access point mode) .................................................. 72

5.4.8 Finish ................................................................................................................. 74

5.5 Security Wizard.................................................................................................. 75

5.5.1 Security Settings................................................................................................ 76

5.5.2 Security Settings for Management Interfaces ................................................... 77

5.5.3 Security Settings for SNMP Protocol................................................................. 78

5.5.4 Security Settings for WLAN (Page 1, only in access point mode) .................... 79

5.5.5 Security Settings for WLAN (Page 2) ................................................................ 83

5.5.6 Settings for the Security Level Low ................................................................... 87

5.5.7 Settings for the Security Level Medium in Access Point Mode ......................... 88

5.5.8 Settings for Security Level Medium in Client Mode........................................... 89

5.5.9 Settings for the Security Level High .................................................................. 90

5.5.10 Settings for the Security Level Highest.............................................................. 91

5.5.11 The Following Settings Were Made................................................................... 91

5.5.12 Finish ................................................................................................................. 92

5.6 iPCF Wizard....................................................................................................... 93

5.6.1 i Point Coordination Function Settings .............................................................. 93

5.6.2 Security Settings for WLAN ............................................................................... 96

5.6.3 Public Security Key for WLAN ........................................................................... 97

5.6.4 Finish ................................................................................................................. 98

6 Configuration Using Web Based Management and the Command Line Interface 99

6.1 General Information on Web Based Management and the

Command Line Interface ................................................................................... 99

6.1.1 Introduction ........................................................................................................ 99

6.1.2 The LED Simulation of Web Based Management........................................... 100

6.1.3 Working with Web Based Management .......................................................... 101

6.1.4 Command Line Interface (CLI) ........................................................................ 102

6.2 The System Menu............................................................................................ 104

6.2.1 System Information Menu Command .............................................................. 104

6.2.2 IP Settings Menu Command............................................................................ 112

6.2.3 Services Menu Command ............................................................................... 114

6.2.4 Restart Menu Command.................................................................................. 116

6.2.5 Event Config Menu Command ........................................................................ 118

6.2.6 E-mail Config Menu Command ....................................................................... 121

6.2.7 SNMP Config Menu Command ....................................................................... 122

6.2.8 Syslog Menu Command .................................................................................. 127

6.2.9 SNTP Config Menu Command ........................................................................ 130

6.2.10 Fault State Menu Command............................................................................ 131

6.2.11 Load & Save Menu Command ........................................................................ 132

6.2.12 C-PLUG Menu Command................................................................................ 136

6.3 Interfaces Menu ............................................................................................... 141

6.3.1 Ethernet Menu Command ............................................................................... 141

6.3.2 WLAN Menu Command................................................................................... 143

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Contents

6.3.3 Advanced Submenu ........................................................................................ 149

6.3.4 SSID List Submenu (client mode only)............................................................ 156

6.3.5 Advanced G Submenu..................................................................................... 157

6.3.6 Data Rates Submenu Command (access point mode only) ........................... 160

6.3.7 VAP Submenu Command ............................................................................... 162

6.4 The Security Menu........................................................................................... 163

6.4.1 Basic Wireless Menu Command ..................................................................... 163

6.4.2 Keys Menu Command ..................................................................................... 173

6.4.3 ACL Menu Command ...................................................................................... 174

6.4.4 RADIUS Server Menu Command.................................................................... 178

6.4.5 Access Menu Command.................................................................................. 179

6.5 The Bridge Menu ............................................................................................. 180

6.5.1 WDS Menu Command..................................................................................... 181

6.5.2 VLAN Menu Command.................................................................................... 183

6.5.3 Learning Table Menu Command..................................................................... 192

6.5.4 ARP Table Menu Command............................................................................ 192

6.5.5 Spanning Tree Menu Command ..................................................................... 192

6.5.6 Storm Threshold Menu Command .................................................................. 202

6.5.7 NAT Menu Command...................................................................................... 203

6.5.8 IP Mapping Table Menu Command................................................................. 208

6.6 The Filters Menu.............................................................................................. 210

6.6.1 MAC Filter Menu Command ............................................................................ 210

6.6.2 MAC Dir Filter Menu Command ...................................................................... 211

6.6.3 Protocol Filter Menu Command....................................................................... 212

6.7 The I-Features Menu ....................................................................................... 213

6.7.1 iQoS Menu Command ..................................................................................... 213

6.7.2 iPCF Menu Command ..................................................................................... 215

6.7.3 Forced Roaming on IP Down .......................................................................... 219

6.7.4 Link Check Menu Command ........................................................................... 220

6.7.5 Redundancy Menu Command......................................................................... 222

6.7.6 IP-Alive Menu Command................................................................................. 224

6.8 The Information Menu...................................................................................... 226

6.8.1 Log Table Menu Command ............................................................................. 227

6.8.2 Auth Log Menu Command............................................................................... 228

6.8.3 Versions Menu Command ............................................................................... 229

6.8.4 Client List Menu Command ............................................................................. 230

6.8.5 Ethernet Menu Command ............................................................................... 232

6.8.6 WLAN Menu Command................................................................................... 232

6.8.7 iQoS Menu Command ..................................................................................... 238

6.8.8 Spanning Tree Menu Command ..................................................................... 240

6.8.9 IP, TCP/IP, ICMP, SNMP Menu Command..................................................... 242

6.8.10 Signal Recorder Menu Command ................................................................... 242

7 Technical Specifications / Approvals....................................................................... 248

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Contents

Approvals ................................................................................................................................. 252

Appendix .................................................................................................................................. 257

Private MIB Variables of the SCALANCE W78x .......................................................... 257

Designing and Calculating Wireless Systems Based on the Example of RCoax ........ 261

Calculating in Decibels ................................................................................................. 261

Power Specifications .................................................................................................... 262

Losses Based on the Example of a 2.4 GHz RCoax Cable ......................................... 264

Receiver Sensitivity ...................................................................................................... 266

System Calculation Based on the Example of RCoax ................................................. 267

Glossary ................................................................................................................................... 269

Index ...................................................................................................................................... 273

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Basic Information on Wireless LAN

Communication

1.1 Network Structure

Standalone Configuration with the SCALANCE W78x

This configuration does not require a server and the SCALANCE W78x does not have a connection to a wired Ethernet. Within its transmission range, the SCALANCE W78x forwards data from one WLAN node to another.

The wireless network has a unique name. All the devices exchanging data within this network must be configured with this name.

Figure 1-1 Standalone Configuration of a SCALANCE W78x. The gray area indicates

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

the wireless transmission range of the SCALANCE W78x.

d Hoc Networks

In the ad hoc mode, nodes communicate directly (connections 1 through 3 in Figure 1-2) without involving a SCALANCE W78x with each other (connection 4). The nodes access common resources (files or even devices, for example a printer) of the server. This is, of course, only possible when the nodes are within the wireless range of the server or within each other's range.

Basic Information on Wireless LAN Communication

Figure 1-2 Ad Hoc Network without SCALANCE W 78x

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Basic Information on Wireless LAN Communication

Wireless Access to a Wired E

If one (or more) SCALANCE W78x access points have access to wired Ethernet, the following applications are possible:

● A single SCALANCE W78x as gateway: A wireless

network can be connected with a wired network over a SCALANCE

W78x.

● Span of wireless coverage for the wireless network with several

SCALANCE W78x access points: The SCALANCE W78x acc SSID (network name). All nodes that want to communicate over this network must also be configured with this SSID.

If a mobile station moves from the coverage r SCALANCE W78x to the coverage range (cell) of another SCALANCE W78x, the wireless connection is maintained (this is called roaming).

thernet Network

ess points are all configured with the same unique

ange (cell) of one

Figure 1-3 Wireless Connection of a Mobile Station over two Cells (Roaming)

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Multichannel Configuration

Basic Information on Wireless LAN Communication

If neighboring SCALANCE W78x access points use the same frequency cha the response times are longer due to the collisions that occur. If the configuration shown in Figure 1-4 is implemented as a single-channel system, computers A a B cannot communicate at the same time with the SCALANCE W78x access po in their ce

If neighboring SCALANCE W78x access points are set up for different frequencies, this leads to a considerable improvement in cells each have their own medium and the delays resulting from time-offset transmission no longer occur.

Channel spacing should be as large as possible; a practical value would be 25 MHz. Even in a multichannel configuration, all SCALANCE W78x access points can be configured with the same network name.

lls.

performance. As a result, neighboring

nnel,

ints

Figure 1-4 Multichannel Configuration on Channels 1 and 7 with four

SCALANCE W78x Access Points

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Basic Information on Wireless LAN Communication

Wireless Distribution System (WDS

WDS allows direct connections between SCALANCE W78x devices and or between SCALANCE W78x and other WDS-compliant devices. These are use create a wireless backbone or to connect an individual SCALANCE W78x to a network that cannot be connected directly to the cable infrastructure location.

Two alternative configurations are possible both using its name and its MAC address.

)

d to

due to its

. The WDS partner can be configured

Figure 1-5 Implementation of WDS with four SCALANCE W78x Access Points

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Redundant Wireless LAN (RWlan)

RWlan allows a redundant, wireless connection between two SCALANCE W7882xx devices (W788-2PRO or W788 wireless backbone that cannot be location but nevertheless has high demands in terms of availability.

Basic Information on Wireless LAN Communication

-2RR). This is used to set up a redundant

implemented as a wired network due to its

Two alternative configurations are possible. The RWl both using its name and its MAC address.

an partner can be configured

Figu x.

re 1-6 Implementation of RWlan with two SCALANCE W788-2x

As an alternative, data transfer is possible over one of the two wireless adapters.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

1.2 W

1.2.1 MA

LAN Communication

C-based Communication

Auto Find Adopt MAC / Adopt MAC manually

Frames in the direction from the client to the access point always have th address of the WLAN interface as the source MAC address. As a result, the learning table at the access point end always has only the MAC address of the WLAN interface of the client.

If the MAC address of a device conn both the MAC-based and the IP-based frames find their destination in precisely thi device.

Other node checks whether the destination MAC matches the MAC addresses of the connected clients. Since a client can only adopt one MAC address, the acc point does not find a match and discards the packets to other nodes.

Maximum possible number of MA

s located downstream from the client cannot be reached. The AP

ected to the client over Ethernet is adopted,

C nodes downstream from the client: 1

e MAC

ess

Notes on setting Auto Find Adopt MAC:

● As long as there is no link on the Ethernet interface, t

address of the Ethernet interface so that it can be reached in this status. In this status, the device can be found using the Primary Setup Tool.

● As soon as there is a link on the Ethernet interface, the device adopts the

source MAC address o

Note

From the moment that the device adopts another MAC address (whether manually or automatically), the device no longer responds to queries of the Primary Setup Tool when the query is received over the WLAN interface. Queries of the PST over the Ethernet interface continue to be replied to.

f the first received frame.

he device uses the MAC

Adopt Own MAC (only W746/W747 and W788 in client mode)

If IP-based frames need to be sent to a device connected downstream from the client, the default setting Adopt Own Mac can be retained. The client registers with the MAC address of its Ethernet adapter. The IP packets are broken down according to an internal table and forwarded to the connected devices (IP mapping).

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Basic Information on Wireless LAN Communication

Communication at the MAC address level (ISO/OSI layer 2) is then only possible with a component downstream from the client if its MAC address was adopted by the client.

Maximum possible number of MAC nodes downstream from the

Layer 2 Tunneling (only W746/W747 and W788 in client mode)

With layer 2 tunneling, the client provides information about the devices downstream from it when it registers with an access point. This makes it possible to enter the MAC addresses of these devices in the learning table of the access point. The access point can forward MAC-based frames for the devices downstream from the client to the appro

In much the same way as with WDS, a separate port is created for th over which the Ethernet frames are sent without changing the destination MAC address.

Maximum possible num

priate client.

ber of MAC nodes downstream from the client: 8

1.2.2 IP-based Communication

IP Mapping

(only W746/747 and W788 in client mode)

If there is more than one device connected downstream from the client and these

sh uld only be addressed with IP frames, you can implement WLAN access for sev With IP mapping, the client maintains a table with

eral devices with one client. the assignment of MAC address and IP address to forward incoming IP frame the correct MAC address.

client: 0

e L2T client

s to

Maximum possible number of IP nodes downstream from the client: 8

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

Componen o

Requirements for Installation and Operation

ts f the Product

The ponents are supplied with the SCALANCE W78x:

following com

● SCALANCE W78x

● 2 OMNI antennas

1 IE IP 67 hybrid plug-in connection

●

● 1 protective cap for the M12 socket

● 2 (or 4 with SCALANCE W788-2PRO or SCALANCE W788-2RR) protective

caps for the R-SMA sockets

● 1 SIMATIC NET Industrial Wireless LAN CD with these Operating Instructions

for the SCALANCE W78x

Please check that the consignment you have received is complete. If it is not complete, please contact your supplier or your local Siemens office.

A PG/PC with a network attachment must be available to configure the SCALANCE W78x. If no DHCP server is available, a PC on which the Primary Setup Tool (PST) is installed is necessary for the initial assignment of an IP address to the SCALANCE W78x. For the other configuration settings, a computer with Telnet or an Internet browser is necessary.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

Possible Applications of the SCALA

The SCALANCE W78x is equipped with an Ethernet interface and a wireless LAN inte 88-2RR: two WLAN

rface (SCALANCE W788-2PRO and SCALANCE W7 interfaces). This makes the device suitable for the following applications:

● The SCALANCE W78x forwards data within its transmission range from

node to another without a connection to wired Ethernet being necessary.

●

The SCALANCE W78x can be used as a gateway from a wired to a wireless

network.

The SCALANCE W78x can be used as a wireless bridge between two

●

tworks.

● The SCALANCE W78x can be used as a bridge between two different

frequencies.

Over and above this, due to the second interface of the SCALANCE W788-2PR and the SCALANCE W788-2RR, a redundant w implemented between two SCALANCE W788-2xx modules.

NCE W78x

one

ireless link can also be

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

roperties SCALANCE W78x

P of the

● The Ethernet interface supports 10 Mbps and 100 Mbps, both in full and half

duplex as well as autocrossing and autonegotiation.

Operating the wireless interface in the frequency bands 2.4 GHz and 5 GHz.

●

● Th

e wireless interface is compatible with the standards IEEE 802.11a , IEEE 802.11b and IEEE 802.11g. In the 802.11a- and 802.11g mode, the gross transmission rate is up to 54 Mbps. In turbo mode, the Transmission rate is up to 108 Mbps (not permitted in all countries and modes).

ote

If NCE ate (A rbo), remember

the SCALA that the channels o the set transmission channel are also used for communic rb n therefo on these channels when there

ation. Distu ances ca re occur

W78x is oper

adjacent t

are neighboring wireless systems. The da hput can also be reduced if there is com etition for use these hannel

p of c s.

d in turbo mode , G or H tu

ta throug

● As an expansion of the 802.11a mode, it is also possible to op g

erated accordin

to the IEEE 802.11h standard. In 802.11h mode, the procedures Transmit

Powe nd uen n ) are used in

r Control (TPC) a Dynamic Freq cy Selectio (DFS the

range 5.25 - 5.35 and 5.47 - 5.75 GHz. This means that in som the frequency sub-band 5.47 - 5.725 GHz can also be used outdo er

e countries,

ors with high

transmit power.

C is a method of co ling the transmit power tha redu

urrently required level. With dynamic fre ency selec n (DF point searches for primary users (for example radar) on a rand cted channel before starting communication. If signals are found on this ch

annel is disabled and the availability check is repeated on

r c

nothe hannel. The gross transmission rate is up to 54 Mbps in 802.11h mod

● Support of the authentication standards WPA, WPA-PSK, WP

ntrol t is

tio

for 30 minutes

ced to the

S), the access omly sele the channel,

A2, WPA2-PSK

and IEEE 802.1x and the encryption methods WEP, AES and TKIP.

● Suitable for

inclusion of a RADIUS server for authentication.

● Device-related and application-related monitoring of the wireless connection.

● The interoperability of SCALANCE W78x dev

ices with Wi-Fi devices of other

vendors was tested thoroughly.

● Only for W78x-1RR/2RR: The iPCF mode provides an optimized data throughput and minimum handover times.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

Note

In the client mode, you can use a SCALANCE W 1RR and a SCALANCE W788-xPRO as SCALANCE

Not

For that you enable the iPCF mode.

PNIO communication, we always recommend

The following table illustrates the differences between the various variants of the SCALANCE W78x:

Type No. of WLAN

interfaces

1 2 1 several

W7881PRO

W7882PRO

W788-1RR

W788-2RR

●

No. of supported IP

nodes

No. of supported MAC nodes

(3)

1 several

●

● ●

●

788-xRR as SCALANCE W747-

W746-1PRO.

iPCF

(3)

mode

●

● ●

●

(1)

Order no.

6GK57881ST00-2AA6

6GK57881ST00-2AB6

6GK57882ST00-2AA6

6GK57882ST00-2AB6

6GK57 1SR00-2AA6

6GK57881SR00-2AB6

6GK57882SR00-2AA6

6GK5788 2SR00-2AB6

88-

(2)

(1) The iPCF rovides an ut and minimum handover times. (2) US varia

(3) In client mode.

mode p

In the SCALANCE HELP configurat o

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

ion parameters

W78x

optimized data throughp

function, you will find further inform

f the relevant device.

ation on the

Description of the SCALANCE W78x

Ports

The SCAL 78x ha

● RJ-45 cto isting of an RJ-

● s optio

● Two R-SMA plugs (fou PRO and

LED Display

On the front of the housing g status of the SCALANCE W

ANCE W s the following ports:

hybrid conne

45 jack an we s the use of

d 4-pin po

r on the front panel of the housing cons

r socket. The RJ-45 connector support switches capable of power-over-Ethernet according to 802.3af. The 4-pin power socket allows power of 18 - 32 V DC.

An M12 connector a nal power supply (18 - 3

2 V DC).

r R-SMA plugs on the SCALANCE W788-2

SCALANCE W788-2R chment of antennas on the sides of the

R) for the atta

device.

, several LEDs provide information on the operatin

78x:

S C A L A N C E W 7 8 8 - 1 x x

S C A L A N C E W 7 8 8 - 2 x x

Figure 2-1 The LEDs of the SCALANCE W78x

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

P 1

L 2

P 1

L 2

R 1

L 1

R 2

Description of the SCALANCE W78x

The LEDs have the following significa

LED Color Meaning

L2 Green

Yellow Data transfer over the Ethernet interface (traffic). Green There is a connection over the Ethernet interface. (Link) Yellow flashing PRESET-PLUG detected. Yellow/green PRESET function completed successfully. Green flashing "Flashing“ enabled over PST.

Power supply over the hybrid connector X1 (PoE or

energy contacts). Yellow Data transfer over the first WLAN interface. Green Access Point Mode:

The WLAN interface is initialized and ready for operation.

Client Mode:

There is a connection over the first WLAN interface. Green flashing Access Point Mode:

The channels are scanned.

Client Mode:

The client is searching for a connection to an access point or

ad hoc network. Green flashing

quickly

Yellow flashing PRESET-PLUG detected.

Access Point

With 802.11h

primary users before the channel can be used for data traffic

Client Mode:

The client waits for the adopt MAC addr

<Aut

nce:

Mode:

the channel is scanned for one minute for

o Find Adopt MAC> and is connected to no access point.

ess due to the setting

Green 3x fast, 1x long flashing

Yellow/green PRESET function completed successfully.

Clie

nt Mode:

The client waits for the adopt

<Auto Find Adopt MAC> a

nd is connected to an access point.

MAC address due to the setting

LED Color Meaning

Yellow Access Point Mode:

Data transfer over the second WLAN interface.

Client Mode:

The LED is always off because the 2nd interface is not

available in client mode. Green Access Point Mode:

The WLAN interface is initialized and ready for operation.

Client Mode:

The LED is al

available in client mode. Green flashing Access Point Mode:

The channels are scanned.

Client Mode:

The LED is always off because the 2nd interface is not

available in client mode.

ways off because the 2nd interface is not

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

ED Color Meaning

Green flashing quickly

Yellow flashing PRESET-PLUG detected. Yellow/green PRESET function completed successfully.

L1 Green Power supply over the M12 connector (X2). F

Red

Access Point Mode:

With 802.11h the channel is scanned for one minute for

primary users before the channel can be used for data traffic.

nt Mode:

Clie

e LED is always off because the 2nd interface is not

available in client mode.

An error occurred during oper

SCALANCE W78x.

ation with the

Not

e LED for the WLAN interface is not green when the device starts up, although

If th

tivated, the interface is no

it is ac t ready for operation (interface not initialized).

e main reason for this is usually that during commissioning of the

ANCE W78x products, a wa

SCAL iting time of up to 15 minutes can occur when the ambient temperature is below zero. The device is ready for operation at the

cified ambient temperature as soon as the LED for the WLAN interface is lit

spe

green

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

Configuration Information on the C-PLUG

The

C-PLUG is used to transfer the configuration of the old device to the new

dev rts up with the C-

ice when a device is replaced. When the new device sta PLUG, it then continues automatically with exactly the same configuration as the old device. One exception to this can be the IP configuration if it is set over DHCP and the DHCP server has not been reconfigured accordingly.

Reconfiguration is necessary if you use WDS or redundancy and use the MAC addresses and not the sysNames. These functions are then based on the MAC address that inevitably changes if a device is replaced.

Note

As soon as the device is started with a C-PLUG inserted, the SCALANCE W starts up with the configuration data on the C-PLUG.

Replacing the C-PLUG

Follow the steps below to replace a C-PLUG in a SCALANCE W78x:

1 Turn off the power to the device.

2 Remove the old SCALANCE W78x from its mounting and open the sealing

screw on the rear with a coin or broad screwdriver.

3 Remove the C-PLUG.

4 Open the sealing screw of the new device in the same way and insert the C-

PLUG of the old device.

5 Replace the sealing screws of both devices.

If a new C-PLUG is inserted in a SCALANCE W78x, the configuration stored locally on the SCALANCE W78x is saved to the C-PLUG. If an incorrect C-PLUG (for example from another device or a damaged plug) is inserted, the SCALANCE W78x signals an error with the red LED. The user then has the choice of either removing the C-PLUG again or selecting the option to reformat the CPLUG and use it.

Note

It is necessary that the configuration on the C-PLUG was generated with a firmware version ≤ the firmware version on the destination device.

Example: A C-PLUG with version V3.0 cannot be used for a SCALANCE W78x with firmware version V2.4.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

eset Button

The reset button is on the rear of the device directly beside the C-PLUG receptacle and has several functions:

● Restarting the dev

To restart the device

ice.

, press the Reset button.

● Loading new firmware

(Only if the normal procedure for loading firmware with Load & Save (see Section. 6.2.10) does not work). This can, for example, occur if there was a power down during the normal firmware update.

Follow the steps below to load new firmware:

1. Turn off the powe

r to the device.

2. Now press the Reset button and reconnect the power to the device while hold

ing down the button.

3. Hold down the button until the red fault LED (F) starts to flash after approximately 2 seconds.

4. Now release the button. The bootloader waits in this state for a new file that you can download by FTP.

5. Assign an IP address with the Primary Setup Tool.

6. Connect a PC to the SCALANCE W78x over the Ethernet interface.

7. Then enter the co FTP client. The new firmware should be located in the same fol

mmand "ftp <ip address>“ in a DOS box or use a different

der as the

DOS box.

firmware

8. For the login and password, enter "siemens“. You can now transfer the new firm

ware with the "put <firmware>“ command.

9. Once the firmware has been transferred completely to the device, the device is restarted automatically.

● Restoring the default parameters (factory default)

Caution:

All previously made settings are lost! First, turn off the power to the device. Now press the Reset button and reconnect the power to the device while holding down the button. Hold down the

button until the red fault LED (F) stops flashing after approximately 10

seconds and is permanently lit. Now release the button and wait until the

fault LED (F) goes off again. The device then starts automatically with the default parameters.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

Description of the SCALANCE W78x

● Adopting the configuration data from the PRESET PLUG. If the d briefly

evice restarts with a valid PRESET PLUG, by pressing the button

, the configuration data is adopted by the device.

Operating Instructions SCALANCE W78x C79000-G8976-C184-07

+ 244 hidden pages

Siemens SCALANCE W788-1PRO, SCALANCE W788-1RR, SCALANCE W788-2RR, SCALANCE W788-2PRO Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Description of the SCALANCE W78x