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SCALANCE W786-xPRO

Siemens SCALANCE W786-xPRO Operating Instructions Manual

Introduction
1
Description
2
Assembly
3
Connecting up
4
Configuration / project engineering
5
Upkeep and maintenance
6
Technical specifications
7
Appendix
A
SIMATIC NET
SCALANCE W786-xPRO
Operating Instructions
Release 08/2007
C79000-G8976-C221-02
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.
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.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and operation 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:
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.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Automation and Drives Postfach 48 48 90327 NÜRNBERG GERMANY
Ordernumber: C79000-G8976-C221-02 Ⓟ 08/2007
Copyright © Siemens AG 2007. Technical data subject to change
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
3
Table of contents
1 Introduction................................................................................................................................................ 9
1.1 Information on the Operating Instructions SCALANCE W786-xPRO............................................9
1.2 Type designations........................................................................................................................11
2 Description............................................................................................................................................... 13
2.1 Network structures .......................................................................................................................13
2.2 Scope of delivery .........................................................................................................................19
2.3 Product properties........................................................................................................................20
2.4 LED display..................................................................................................................................23
2.5 C-PLUG........................................................................................................................................26
2.6 Reset button.................................................................................................................................27
2.7 Biological compatibility.................................................................................................................28
3 Assembly................................................................................................................................................. 29
3.1 Removing / fitting the housing cover............................................................................................29
3.2 Connecting up cables ..................................................................................................................31
3.3 Mounting without an adapter (wall mounting only) ......................................................................34
3.4 Mounting with mounting plate ......................................................................................................37
3.4.1 Fitting the mounting plate to a wall ..............................................................................................37
3.4.2 Screwing the cover plate for the cable feedthrough to the mounting plate .................................38
3.4.3 Fitting the mounting plate to an S7-300 standard rail..................................................................40
3.4.4 Fitting the mounting plate to a DIN rail ........................................................................................41
3.4.5 Fitting the mounting plate to a mast.............................................................................................42
3.4.6 Fitting/removing the SCALANCE W786 to/from a mounting plate ..............................................43
4 Connecting up ......................................................................................................................................... 45
4.1 Lightning protection, power supply, and grounding .....................................................................45
4.2 Suitable cables and antennas for the SCALANCE W786 ...........................................................47
4.3 Connecting the cables .................................................................................................................49
4.4 Connectors for the power supply of the SCALANCE W786 ........................................................53
4.5 Connecting a power supply adapter ............................................................................................55
4.6 Connection for Industrial Ethernet ...............................................................................................58
4.7 Connectors for external antennas................................................................................................59
4.8 Inserting / removing the C-PLUG.................................................................................................60
5 Configuration / project engineering .......................................................................................................... 61
5.1 Technical basics ..........................................................................................................................61
5.1.1 Spanning Tree .............................................................................................................................61
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5.1.2 iQoS ............................................................................................................................................ 62
5.1.3 Forced Roaming on IP Down...................................................................................................... 62
5.1.4 Link Check................................................................................................................................... 62
5.1.5 Redundancy ................................................................................................................................ 62
5.1.6 IP-Alive........................................................................................................................................ 63
5.1.7 MAC-based communication ........................................................................................................ 63
5.1.8 IP-based communication............................................................................................................. 64
5.2 Assignment of an IP address ...................................................................................................... 65
5.2.1 Structure of an IP address .......................................................................................................... 65
5.2.2 Initial assignment of an IP address ............................................................................................. 66
5.2.3 Address assignment with DHCP................................................................................................. 66
5.2.4 Address assignment with the Primary Setup Tool ...................................................................... 67
5.3 The wizards of Web Based Management................................................................................... 68
5.3.1 Introduction ................................................................................................................................. 68
5.3.2 Starting Web Based Management and logging on ..................................................................... 68
5.3.3 Selecting the wizards .................................................................................................................. 70
5.4 Basic Wizard ............................................................................................................................... 72
5.4.1 IP settings.................................................................................................................................... 72
5.4.2 System name .............................................................................................................................. 73
5.4.3 Country code............................................................................................................................... 74
5.4.4 Wireless settings in access point mode ...................................................................................... 75
5.4.5 Wireless settings in client mode.................................................................................................. 76
5.4.6 Adopt MAC Address settings (only for clients or access points in client mode)......................... 76
5.4.7 Channel settings (in access point mode only) ............................................................................ 79
5.4.8 Closing the Basic Wizard ............................................................................................................ 81
5.5 Security Wizard ........................................................................................................................... 82
5.5.1 Introduction ................................................................................................................................. 82
5.5.2 Security settings.......................................................................................................................... 82
5.5.3 Security settings for the management interfaces........................................................................ 83
5.5.4 Security settings for the SNMP protocol ..................................................................................... 84
5.5.5 Security settings for WLAN (page 1, only in access point mode) ............................................... 85
5.5.6 Security settings for WLAN (page 2)........................................................................................... 88
5.5.7 Settings for the Low security level .............................................................................................. 91
5.5.8 Settings for the Medium security level ........................................................................................ 92
5.5.9 Settings for the High security level in access point mode........................................................... 93
5.5.10 Settings for the High security level in "Client" mode................................................................... 94
5.5.11 Overview of the selected security settings for an access point .................................................. 95
5.5.12 Exiting the Security Wizard ......................................................................................................... 96
5.6 Configuration with Web Based Management.............................................................................. 97
5.6.1 General information on Web Based Management...................................................................... 97
5.6.2 The LED simulation of Web Based Management....................................................................... 98
5.6.3 The System menu ....................................................................................................................... 98
5.6.3.1 System Information menu command .......................................................................................... 98
5.6.3.2 IP Settings menu command...................................................................................................... 100
5.6.3.3 Services menu command.......................................................................................................... 100
5.6.3.4 Restart menu command............................................................................................................ 101
5.6.3.5 Event Config menu command................................................................................................... 102
5.6.3.6 E-mail Config menu command.................................................................................................. 103
5.6.3.7 SNMP Config menu command ................................................................................................. 103
5.6.3.8 SSyslog menu command .......................................................................................................... 104
5.6.3.9 SNTP Config menu command .................................................................................................. 106
5.6.3.10 Fault State menu command...................................................................................................... 106
5.6.3.11 Load & Save menu command................................................................................................... 106
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5.6.3.12 C-PLUG menu command...........................................................................................................108
5.6.4 The Interfaces menu ..................................................................................................................112
5.6.4.1 Interfaces menu command ........................................................................................................112
5.6.4.2 Ethernet menu command...........................................................................................................113
5.6.4.3 WLAN menu command..............................................................................................................113
5.6.4.4 Advanced menu command ........................................................................................................116
5.6.4.5 SSID List menu command .........................................................................................................120
5.6.4.6 Advanced G menu command ....................................................................................................120
5.6.4.7 Data Rates menu command ......................................................................................................121
5.6.4.8 VAP menu command .................................................................................................................122
5.6.5 The Security menu.....................................................................................................................123
5.6.5.1 Security menu command ...........................................................................................................123
5.6.5.2 Basic Wireless menu command.................................................................................................123
5.6.5.3 Keys menu command ................................................................................................................128
5.6.5.4 ACL menu command .................................................................................................................128
5.6.5.5 RADIUS Server menu command...............................................................................................130
5.6.5.6 Access menu command.............................................................................................................131
5.6.6 The Bridge menu .......................................................................................................................131
5.6.6.1 Bridge menu command..............................................................................................................131
5.6.6.2 WDS menu command................................................................................................................132
5.6.6.3 VLAN menu command...............................................................................................................134
5.6.6.4 Learning Table menu command ................................................................................................140
5.6.6.5 ARP Table menu command.......................................................................................................140
5.6.6.6 Spanning Tree menu command.................................................................................................140
5.6.6.7 Storm Threshold menu command..............................................................................................147
5.6.6.8 NAT menu command .................................................................................................................147
5.6.6.9 IP Mapping Table menu command............................................................................................150
5.6.7 The Filters menu ........................................................................................................................151
5.6.7.1 Filters menu command ..............................................................................................................151
5.6.7.2 MAC Filters menu command .....................................................................................................152
5.6.7.3 MAC Dir Filter menu command............................................................................................
......152
5.6.7.4 Protocol Filter menu command..................................................................................................152
5.6.8 The I-Features menu .................................................................................................................153
5.6.8.1 I-Features menu command........................................................................................................153
5.6.8.2 iQoS menu command (in access point mode only) ...................................................................153
5.6.8.3 Forced Roaming on IP Down menu command (in access point mode only).............................154
5.6.8.4 Link Check menu command (in access point mode only) .........................................................154
5.6.8.5 Redundancy menu command (in access point mode only).......................................................155
5.6.8.6 IP Alive menu command (in access point mode only)...............................................................156
5.6.9 The Information menu................................................................................................................157
5.6.9.1 Information menu command ......................................................................................................157
5.6.9.2 Log Table menu command ........................................................................................................157
5.6.9.3 Auth Log menu command..........................................................................................................157
5.6.9.4 Versions menu command ..........................................................................................................158
5.6.9.5 Client List menu command ........................................................................................................159
5.6.9.6 Ethernet menu command...........................................................................................................160
5.6.9.7 WLAN menu command..............................................................................................................161
5.6.9.8 iQoS menu command ................................................................................................................165
5.6.9.9 Spanning Tree menu command.................................................................................................165
5.6.9.10 IP, TCP/IP, ICMP, SNMP menu command................................................................................167
5.6.9.11 Signal Recorder menu command ..............................................................................................167
5.7 Configuration with the Command Line Interface........................................................................173
5.7.1 General information on the Command Line Interface................................................................173
5.7.2 The CLI\SYSTEM menu ............................................................................................................175
5.7.2.1 CLI\SYSTEM menu command...................................................................................................175
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5.7.2.2 CLI\SYSTEM\IP menu command ............................................................................................. 176
5.7.2.3 CLI\SYSTEM\SERVICES menu command............................................................................... 177
5.7.2.4 CLI\SYSTEM\RESTARTS menu command.............................................................................. 178
5.7.2.5 CLI\SYSTEM\EVENT menu command..................................................................................... 178
5.7.2.6 CLI\SYSTEM\EMAIL menu command ...................................................................................... 181
5.7.2.7 CLI\SYSTEM\SNMP menu command ...................................................................................... 181
5.7.2.8 CLI\SYSTEM\SNMP\GROUP menu command ........................................................................ 182
5.7.2.9 CLI\SYSTEM\SNMP\USER menu command ........................................................................... 183
5.7.2.10 CLI\SYSTEM\SNMP\TRAP menu command............................................................................ 184
5.7.2.11 CLI\SYSTEM\SYSLOG menu command.................................................................................. 184
5.7.2.12 CLI\SYSTEM\SNTP menu command ....................................................................................... 185
5.7.2.13 CLI\SYSTEM\FAULT menu command ..................................................................................... 186
5.7.2.14 CLI\SYSTEM\LOADSAVE menu command ............................................................................. 186
5.7.2.15 CLI\SYSTEM\CPLUG menu command .................................................................................... 188
5.7.3 The CLI
\INTERFACES menu.................................................................................................... 189
5.7.3.1 CLI\INTERFACES\ETHERNET menu command ..................................................................... 189
5.7.3.2 CLI\INTERFACES\WLAN1 (or \WLAN2 or \WLAN3) menu command..................................... 190
5.7.3.3 CLI\INTERFACES\WLAN1\ADVANCED (or \WLAN2\ADVANCED or
\WLAN3\ADVANCED) menu command.................................................................................... 191
5.7.3.4 CLI\INTERFACES\WLAN1\SSID (or \WLAN2\SSID or \WLAN3\SSID) menu command........ 194
5.7.3.5 CLI\INTERFACES\WLAN1\802.11G (or \WLAN2\802.11G or \WLAN3\802.11G) menu
command................................................................................................................................... 195
5.7.3.6 CLI\INTERFACES\WLAN1\DATARATES (or \WLAN2\DATARATES or
\WLAN3\DATARATES) menu command.................................................................................. 196
5.7.3.7 CLI\INTERFACES\WLAN1\VAP1..7 (or \WLAN2\VAP1..7 or \WLAN3\
VAP1..7) menu
command................................................................................................................................... 197
5.7.4 The CLI\SECURITY menu ........................................................................................................ 197
5.7.4.1 CLI\SECURITY menu command .............................................................................................. 197
5.7.4.2 CLI\SECURITY\BASIC\WLAN1 (or \WLAN2 or \WLAN3) menu command ............................. 198
5.7.4.3 CLI\SECURITY\BASIC\WLAN1\VAP1..7 (or \WLAN2\VAP1..7 or \WLAN3\VAP1..7) menu
command................................................................................................................................... 200
5.7.4.4 CLI\SECURITY\KEYS\WLAN1 (or \WLAN2 or \WLAN3) menu command .............................. 200
5.7.4.5 CLI\SECURITY\ACL\WLAN1 (or \WLAN2 or \WLAN3) menu command................................. 201
5.7.4.6 CLI\SECURITY\RADIUS menu command................................................................................ 202
5.7.4.7 CLI\SECURITY\ACCESS menu command............................................................................... 203
5.7.5 The CLI\BRIDGE menu............................................................................................................. 204
5.7.5.1 CLI\BRIDGE menu command................................................................................................... 204
5.7.5.2 CLI\BRIDGE\WDS\WLAN1 (or \WLAN2 or \WLAN3) menu command.................................... 204
5.7.5.3 CLI\BRIDGE\VLAN\VLAN_ID menu command......................................................................... 205
5.7.5.4 CLI\BRIDGE\VLAN\PORTS menu command........................................................................... 206
5.7.5.5 CLI\BRIDGE\SPANNING menu command............................................................................... 206
5.7.5.6 CLI\BRIDGE\SPANNING\PORTS menu command ................................................................. 207
5.7.5.7 CLI\BRIDGE\STORMTHR menu command ............................................................................. 208
5.7.5.8 CLI\BRIDGE\NAT menu command........................................................................................... 209
5.7.5.9 CLI\BRIDGE\NAT\STATIC menu command............................................................................. 209
5.7.6 The CLI\FILTERS menu............................................................................................................ 210
5.7.6.1 CLI\FILTERS\MAC1FLT menu command ................................................................................ 210
5.7.6.2 CLI\FILTERS\MAC2FLT menu command ................................................................................ 211
5.7.6.3 CLI\FILTERS\PROTO menu command.................................................................................... 212
5.7.7 The CLI\IFEATURES menu ...................................................................................................... 212
5.7.7.1 CLI\IFEATURES\IQOS\WLAN1 (or \WLAN2 or \WLAN3) menu command............................. 212
5.7.7.2 CLI\IFEATURES\FORCED_ROAM
\WLAN1 (or \WLAN2 or \WLAN3) menu command.......... 214
5.7.7.3 CLI\IFEATURES\LINKCHECK menu command....................................................................... 215
5.7.7.4 CLI\IFEATURES\REDUNDANCY menu command.................................................................. 216
5.7.7.5 CLI\IFEATURES\IP_ALIVE menu command............................................................................ 217
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5.7.8 The CLI\INFORM menu .............................................................................................................217
5.7.8.1 CLI\INFORM menu command ...................................................................................................217
5.7.8.2 CLI\INFORM\LOG menu command...........................................................................................218
5.7.8.3 CLI\INFORM\AUTHLOG menu command.................................................................................219
5.7.8.4 CLI\INFORM\WLAN1 (or \WLAN2 or \WLAN3) menu command..............................................219
5.7.8.5 CLI\INFORM\SIGNAL menu command .....................................................................................220
5.8 Configuring with the PRESET PLUG.........................................................................................222
5.8.1 How the PRESET-PLUG works.................................................................................................222
5.8.2 Creating a Configuration with a new PRESET PLUG ...............................................................222
5.8.3 Changing a PRESET PLUG that already contains configuration data ......................................223
5.8.4 Putting a device into operation with a PRESET PLUG..............................................................224
6 Upkeep and maintenance...................................................................................................................... 225
6.1 Loading new firmware over FTP................................................................................................225
6.2 Restoring the default parameter settings...................................................................................226
7 Technical specifications......................................................................................................................... 227
7.1 SCALANCE W786 technical specifications ...............................................................................227
A Appendix................................................................................................................................................ 231
A.1 Private MIB variables of the SCALANCE W78x / W74x............................................................231
A.2 Designing and calculating wireless systems (for example RCoax) ...........................................234
Glossary ................................................................................................................................................ 241
Index...................................................................................................................................................... 249
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Introduction
1
1.1 Information on the Operating Instructions SCALANCE W786-xPRO
Validity of the Operating Instructions
These Operating Instructions cover the following products:
● SCALANCE W786-1PRO
● SCALANCE W786-2PRO
● SCALANCE W786-3PRO
These Operating Instructions apply to the following software version:
● SCALANCE W786-xPRO firmware as of Version 3.3
Note
These Operating Instructions do not apply to the SCALANCE W786-2HPW.
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 W786-xPRO correctly. They explain how to configure the SCALANCE W786-xPRO and how to integrate the SCALANCE W786-xPRO in a WLAN network.
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 W786-xPRO
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 W786-1PRO – SCALANCE W786-2PRO – SCALANCE W786-3PRO
● Operating Instructions for SCALANCE W788-xPRO/RR / SCALANCE W74x-1PRO/RR
The comprehensive documentation for the following products: – SCALANCE W788-1PRO
Introduction
1.1 Information on the Operating Instructions SCALANCE W786-xPRO
SCALANCE W786-xPRO
10 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
– SCALANCE W788-2PRO – SCALANCE W788-1RR – SCALANCE W788-2RR – SCALANCE W744-1PRO – SCALANCE W746-1PRO – SCALANCE W747-1RR
The document contains all the information for the setup, commissioning and operation of these devices.
● Operating Instructions SCALANCE W784-1xx / SCALANCE W74x-1
The comprehensive documentation for the following products:
– SCALANCE W784-1 – SCALANCE W784-1RR – SCALANCE W744-1 – SCALANCE W746-1 – SCALANCE W747-1
The document contains all the information for the setup, commissioning and operation of these devices.
● System manual Wireless LAN Basics
Apart from the description of the physical basics and a presentation of the main IEEE standards, this also contains information on data security and a description of the industrial applications of wireless LAN. You should read this manual if you want to set up WLAN networks with a more complex structure (not simply a connection 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 Gateway IWLAN/PB LINK PNIO for Industrial Ethernet
The user documentation for the IWLAN/PB LINK PNIO. This device is a gateway between IWLAN and PROFIBUS.
Introduction
1.2 Type designations
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1.2 Type designations
Abbreviations used
The information in the manuals for the SCALANCE W-700 product family often applies to more than one product variant. In such situations, the designations of the products are shortened to avoid having to list all the type designations. The following table shows how the abbreviations relate to the product variants.
Product group The designation . . . stands
for . . .
Product name
Ethernet client modules (IP30, cabinet installation)
W74x-1 W744-1
W746-1 W747-1
Ethernet client modules (IP65, installed outside a cabinet)
W74x-1PRO/RR W744-1PRO
W746-1PRO W747-1RR
All Ethernet client modules SCALANCE W
W74x W744-1
W746-1 W747-1 W744-1PRO W746-1PRO W747-1RR
Access points (IP30, cabinet installation) W784-1xx W784-1
W784-1RR
Access points (IP65, installed outside a cabinet, extreme climatic requirements)
W786-xPRO W786-1PRO
W786-2PRO W786-3PRO
Access points (IP65, installed outside a cabinet)
W788-xPRO/RR W788-1PRO
W788-2PRO W788-1RR W788-2RR
Access points with the "RR" range of functions
W-78x-xRR W784-1RR
W788-1RR W788-2RR
All SCALANCE W access points W78x W788-1PRO
W788-2PRO W788-1RR W788-2RR W786-1PRO W786-2PRO W786-3PRO W784-1 W784-1RR
Introduction
1.2 Type designations
SCALANCE W786-xPRO
12 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
Product group The designation . . . stands
for . . .
Product name
All SCALANCE W devices W -700 W788-1PRO
W788-2PRO W788-1RR W788-2RR W744-1PRO W746-1PRO W747-1RR W786-1PRO W786-2PRO W786-3PRO W784-1 W784-1RR W744-1 W746-1 W747-1
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Description
2
2.1 Network structures
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 2-1 Standalone configuration of a SCALANCE W78x. The gray area indicates the wireless
transmission range of the SCALANCE W78x.
Description
2.1 Network structures
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Ad hoc networks
In ad hoc mode, nodes communicate with each other directly (connection 4) without involving a SCALANCE W78x. The nodes access common resources (files or even devices, for example printers) of the server (connections 1 to 3 in the figure). This is, of course, only possible when the nodes are within the wireless range of the server or within each other's range.
1
2
3
4
Figure 2-2 Ad hoc network without SCALANCE W78x
Description
2.1 Network structures
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Wireless access to a wired Ethernet network
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 access points are all configured with the same unique 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 range (cell) of one SCALANCE W78x to the coverage range (cell) of another SCALANCE W78x, the wireless connection is maintained (this is called roaming).
Figure 2-3 Wireless connection of a mobile station over two cells (roaming)
Description
2.1 Network structures
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Multichannel configuration
If neighboring SCALANCE W78x access points use the same frequency channel, the response times are longer due to the collisions that occur. If the configuration shown in the figure is implemented as a single-channel system, computers A and B cannot communicate at the same time with the SCALANCE W78x access points in their cells.
If neighboring SCALANCE W78x access points are set up for different frequencies, this leads to a considerable improvement in performance. As a result, neighboring cells each have their own medium available 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 (five channels). Even in a multichannel configuration, all SCALANCE W78x access points can be configured with the same network name.
1
1
2
2
A
B
Figure 2-4 Multichannel configuration on channels 1 and 7 with four SCALANCE W78x access
points
Description
2.1 Network structures
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Wireless Distribution System (WDS)
WDS allows direct connections between SCALANCE W78x devices and or between SCALANCE W78x and other WDS-compliant devices. These are used to create a wireless backbone or to connect an individual SCALANCE W78x to a network that cannot be connected directly to the cable infrastructure due to its location.
Two alternative configurations are possible. The WDS partner can be configured both using its name and its MAC address.
1
1
1
1
A
B
Figure 2-5 Implementation of WDS with four SCALANCE W78x access points
Description
2.1 Network structures
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18 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
Redundant Wireless LAN (RWLAN)
RWLAN allows a redundant, wireless connection between two SCALANCE W78x devices with at least two WLAN interfaces. This is used to set up a redundant wireless backbone that cannot be implemented as a wired network due to its location but nevertheless has high demands in terms of availability.
Two alternative configurations are possible. The RWLAN partner can be configured both using its name and its MAC address.
A
B
Figure 2-6 Implementing RWLAN with two SCALANCE W78x devices with at least two WLAN
interfaces. As an alternative, data transfer is possible over one of the two wireless adapters.
Description
2.2 Scope of delivery
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
19
2.2 Scope of delivery
The following components are supplied with the SCALANCE W786:
● SCALANCE W786
● 5 caps for the cover screws
● Depending on the version, up to 8 plugs for sealing the housing.
● Depending on the version, up to 8 strain relief clamps
● 1 connector for the 48 V DC power supply
● 2 adhesive sealing foils for oval fiber-optic cables
(not for devices with RJ-45 port)
● 1 SIMATIC NET Industrial Wireless LAN CD with these Operating Instructions for the
SCALANCE W78x
● 1 Operating Instructions (compact) SCALANCE W786
Please check that the consignment you have received is complete. If it is not complete, please contact your supplier or your local Siemens office.
Description
2.3 Product properties
SCALANCE W786-xPRO
20 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
2.3 Product properties
Possible applications of the SCALANCE W786
The SCALANCE W786 is equipped with an Ethernet port and up to three wireless LAN ports. This makes the device suitable for the following applications:
● The SCALANCE W786 forwards data within its transmission range from one node to
another without a connection to wired Ethernet being necessary.
● The SCALANCE W786 can be used as a gateway from a wired to a wireless network.
● The SCALANCE W786 can be used as a wireless bridge between two networks.
● The SCALANCE W786 can be used as a bridge between two cells operating at different
frequencies.
With a SCALANCE W786 with more than one WLAN port, you can also implement a redundant wireless connection to a SCALANCE W78x with at least two WLAN ports.
Properties of the SCALANCE W786
● The Ethernet interface supports 10 Mbps and 100 Mbps, both in full and half duplex as
well as autocrossing and autopolarity.
● Operating the wireless interface in the frequency bands 2.4 GHz and 5 GHz.
● The wireless interface is compatible with the standards IEEE 802.11a, IEEE 802.11h,
IEEE 802.11b and IEEE 802.11g. In the 802.11a, 802.11h 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).
● As an expansion of the 802.11a mode, it is also possible to operated according to the
IEEE 802.11h standard. In 802.11h mode, the procedures Transmit Power Control (TPC) and Dynamic Frequency Selection (DFS) are used in the range 5.25 - 5.35 and 5.47 -
5.75 GHz. In some countries, this allows the frequency subband of 5.47 - 5.725 GHz to be used outdoors even with a higher transmit power. TPC is a technique of controlling the transmit power by reducing it to the strength actually required. With dynamic frequency selection (DFS), the access point searches for primary users (for example radar) on a randomly selected channel before starting communication. If signals are found on the channel, this channel is disabled for 30 minutes and the availability check is repeated on another channel.
● Support of the authentication standards WPA, WPA-PSK, WPA2, 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 the devices with Wi-Fi devices of other vendors was tested
thoroughly.
Note
In client mode, you can use a SCALANCE W786-xPRO with the functionality of a SCALANCE W746-1PRO.
Description
2.3 Product properties
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
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The following table illustrates the differences between the various variants of the SCALANCE W786:
Type Number of
WLAN ports
Number and type of Ethernet ports
Number of internal antennas
Number of R­SMA sockets for external antennas
Order no.
W786-1PRO 1 1 RJ-45 1
(diversity
(2)
)
— 6GK5786-
1BA60-2AA0 6GK5786-
1BA60-2AB0
(1)
W786-1PRO 1 1 RJ-45 — 2 6GK5786-
1AA60-2AA0 6GK5786-
1AA60-2AB0
(1)
W786-1PRO 1 1 ST duplex
multimode FO cable
1 (diversity
(2)
)
— 6GK5786-
1BB60-2AA0 6GK5786-
1BB60-2AB0
(1)
W786-1PRO 1 1 ST duplex
multimode FO cable
— 2 6GK5786-
1AB60-2AA0 6GK5786-
1AB60-2AB0
(1)
W786-2PRO 2 1 RJ-45 2
(diversity
(2)
)
— 6GK5786-
2BA60-2AA0 6GK5786-
2BA60-2AB0
(1)
W786-2PRO 2 1 RJ-45 — 4 6GK5786-
2AA60-2AA0 6GK5786-
2AA60-2AB0
(1)
W786-2PRO 2 1 ST duplex
multimode FO cable
2 (diversity
(2)
)
— 6GK5786-
2BB60-2AA0 6GK5786-
2BB60-2AB0
(1)
W786-2PRO 2 1 ST duplex
multimode FO cable
— 4 6GK5786-
2AB60-2AA0 6GK5786-
2AB60-2AB0
(1)
Description
2.3 Product properties
SCALANCE W786-xPRO
22 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
Type Number of
WLAN ports
Number and type of Ethernet ports
Number of internal antennas
Number of R­SMA sockets for external antennas
Order no.
W786-3PRO 3 1 RJ-45 — 6 6GK5786-
3AA60-2AA0 6GK5786-
3AA60-2AB0
(1)
W786-3PRO 3 1 ST duplex
multimode FO cable
— 6 6GK5786-
3AB60-2AA0 6GK5786-
3AB60-2AB0
(1)
(1) US variant
(2) There are two internal antennas per WLAN port. The antenna used is always the one that provides the best possible data transmission (diversity).
Requirements for installation and operation
A PG/PC with a network attachment must be available to configure the SCALANCE W786. 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 W786. For the other configuration settings, a computer with Telnet or an Internet browser is necessary.
Description
2.4 LED display
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
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2.4 LED display
Information on operating status and data transfer
On the front of the housing, several LEDs provide information on the operating status of the SCALANCE W786:
s
L
1P1
R
1
R
2
R
3F
PoE
SCALANCE W786-3
L1
P1
R1
F
PoE
SCALANCE W786-1x
L1
P1
R1 R2
F
PoE
SCALANCE W786-2x
L1
P1
R1 R2
R3
F
PoE
SCALANCE W786-3x
Figure 2-7 The LED display of the SCALANCE W786
Note
The "PoE" LED does not exist on devices with a port for FO cable.
LED Color Description
L1 Green Power supply over a power supply adapter or the 48 V DC energy
contacts of devices with a port for FO cable.
PoE Green Power over Ethernet or power over the 48 V DC energy contacts of
devices with an RJ-45 port.
Yellow Data transfer over the Ethernet interface (traffic).
Green There is a connection over the Ethernet port. (Link).
Flashing yellow PRESET-PLUG detected.
Yellow/green PRESET function completed successfully.
P1
Flashing green "Flashing" enabled over PST.
R1 Yellow Data transfer over the first WLAN interface.
Description
2.4 LED display
SCALANCE W786-xPRO
24 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
LED Color Description
Green
Access Point Mode:
The WLAN interface is initialized and ready for operation.
Client Mode:
There is a connection over the first WLAN port.
Flashing green
Access Point Mode:
The channels are being scanned.
Client Mode:
The client is searching for a connection to an access point or ad hoc network.
Green flashing quickly
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.
Client Mode:
The client waits for the adopt MAC address due to the setting <Auto Find Adopt MAC> and is connected to no access point.
Green 3x fast, 1x long flashing
Client Mode:
The client waits for the adopt MAC address due to the setting <Auto Find Adopt MAC> and is connected to an access point.
Flashing yellow PRESET-PLUG detected.
Yellow/green PRESET function completed successfully.
Yellow
Access Point Mode:
Data transfer over the second WLAN port.
Client Mode:
The LED is always off because the 2nd port is not available in client mode.
Green
Access Point Mode:
The WLAN interface is initialized and ready for operation.
Client Mode:
The LED is always off because the 2nd port is not available in client mode.
Flashing green
Access Point Mode:
The channels are being scanned.
Client Mode:
The LED is always off because the 2nd port is not available in client mode.
Green flashing quickly
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.
Client Mode:
The LED is always off because the 2nd port is not available in client mode.
Flashing yellow PRESET-PLUG detected.
R2
Yellow/green PRESET function completed successfully.
R3 Yellow
Access Point Mode:
Data transfer over the third WLAN port.
Client Mode:
The LED is always off because the 3rd port is not available in client mode.
Description
2.4 LED display
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
25
LED Color Description
Green
Access Point Mode:
The WLAN interface is initialized and ready for operation.
Client Mode:
The LED is always off because the 3rd port is not available in client mode.
Flashing green
Access Point Mode:
The channels are being scanned.
Client Mode:
The LED is always off because the 3rd port is not available in client mode.
Green flashing quickly
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.
Client Mode:
The LED is always off because the 3rd port is not available in client mode.
Flashing yellow PRESET-PLUG detected.
Yellow/green PRESET function completed successfully.
Red An error occurred during operation with the SCALANCE W786. F
Flashing red Ready to load firmware. The device was either stopped with the reset
button or there is incorrect firmware on the device.
Note
If the LED for the WLAN port is not green when the device starts up, although it is activated, the port is not ready for operation (interface not initialized).
The main reason for this is usually that during commissioning of the SCALANCE W78x products, a waiting time of up to 15 minutes can occur when the ambient temperature is below zero. The device is ready for operation at the specified ambient temperature as soon as the LED for the WLAN interface is lit green.
Description
2.5 C-PLUG
SCALANCE W786-xPRO
26 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
2.5 C-PLUG
Configuration information on the C-PLUG
The C-PLUG is used to transfer the configuration of the old device to the new device when a device is replaced. When the new device starts up with the C-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 with devices with more than one WLAN interface 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
In terms of the C-PLUG, the SCALANCE W-700 devices work in two modes:
• Without C-PLUG The device stores the configuration in internal memory. This mode is active when no C­PLUG is inserted.
• With C-PLUG The configuration stored on the C-PLUG is displayed over the user interfaces. In this mode, the internal memory is neither read nor written. If changes are made to the configuration, the device stores the configuration directly on the C-PLUG. This mode is active when no C-PLUG is inserted. As soon as the device is started with a C-PLUG inserted, the SCALANCE W-700 starts up with the configuration data on the C-PLUG.
Description
2.6 Reset button
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
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2.6 Reset button
Functions of the reset button
The reset button is located below the housing cover beside the sockets for external antennas.
Figure 2-8 Position of the reset button with the housing cover removed
The reset button has the following functions:
● Restart of the device
To restart the device, press the reset button.
● Loading new firmware
If the normal procedure with the Load & Save menu of Web Based Management was completed successfully, the reset button can be used to load new firmware. This situation can occur if there was a power outage during the normal firmware update.
● Restoring the default parameters (factory defaults)
● Adopting the configuration data from the PRESET PLUG.
Description
2.7 Biological compatibility
SCALANCE W786-xPRO
28 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
2.7 Biological compatibility
Electromagnetic fields and health
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 health guidelines apply to WLAN devices as to all other radio applications. These regulations are based on the protection concept of ICNIRP
1
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 conclusions
2
:
'The German Commission on Radiological Protection concludes that according to the latest scientific literature no new scientific research is available with respect to proven health hazards which would throw doubt upon the scientific evaluation which serves as the basis for the ICNIRP safety concepts and the recommendations of the EU commission.'
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.
1
International Council on Non-Ionizing Radiation Protection
2
'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
SCALANCE W786-xPRO Operating Instructions, Release 08/2007, C79000-G8976-C221-02
29
Assembly
3
3.1 Removing / fitting the housing cover
When does the housing cover need to be removed?
You can only perform the following activities when the cover is removed.
● You want to screw the SCALANCE W786 to a wall or onto the optional mounting plate.
● You want to connect cables to the SCALANCE W786 for the power supply, for Ethernet
or for external antennas.
● You want to insert a C-PLUG in the device or replace an existing C-PLUG.
● You want to use the reset button.
Removing the housing cover
WARNING
Danger from line voltage
After removing the housing cover, there is a risk of touching live parts.
Remove the housing cover only after you have turned off the power supply of the SCALANCE W786.
Assembly
3.1 Removing / fitting the housing cover
SCALANCE W786-xPRO
30 Operating Instructions, Release 08/2007, C79000-G8976-C221-02
s
SCALANCE W
78
6-3
L1 P1
R1
R2
R3
F
PoE
A
C
B
Figure 3-1 Removing the cover
A Sealing cap B Cover screw C Housing cover
Follow the steps below to remove the housing cover:
1. Remove the sealing caps from the housing cover (position A in the figure above)
2. Loosen the screws in the cover (position B in the figure above).
Note
These screws remain in the cover after they have been loosened (prevents them being lost). Never attempt to remove these screws from the housing cover using force, otherwise the housing cover will be damaged!
3. Remove the housing cover with the captive screws (position C in the figure above).
Fitting the housing cover
Fitting the housing cover is carried out in the reverse order. Tightening torque for the cover screws 1.8 Nm.
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