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- Siemens Industry Online Support Portals
SCALANCE W788-x / W748-1
1
___________________
Information on the Internet
2
___________________
Introduction
SIMATIC NET
Industrial Wireless LAN
SCALANCE W788-x / W748-1
Operating Instructions
3
___________________
Description
4
___________________
Mounting
5
___________________
Connecting up
6
___________________
Technical specifications
7
___________________
Certification
11/2014
A5E03678333-07
Legal information
Warning notice system
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
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
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 product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of 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
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03678333-07
Ⓟ 11/2014 Subject to change
Copyright © Siemens AG 2011 - 2014.
All rights reserved
Contents
1
Information on the Internet ...................................................................................................................... 5
2
Introduction ............................................................................................................................................. 7
3
4
5
6
2.1
Information on the Operating Instructions ................................................................................ 7
2.2
Structure of the type designations ............................................................................................ 8
Description .............................................................................................................................................. 9
3.1
Components of the product ...................................................................................................... 9
3.2
Description of the device ........................................................................................................10
3.3
LED display .............................................................................................................................12
3.4
Reset button ............................................................................................................................14
Mounting ............................................................................................................................................... 15
4.1
Securing the housing ..............................................................................................................16
4.2
Wall mounting .........................................................................................................................17
4.3
Installing on the S7-300 standard rail .....................................................................................18
4.4
Installing on a DIN rail .............................................................................................................19
Connecting up....................................................................................................................................... 21
5.1
Lightning protection, power supply and grounding .................................................................21
5.2
Power supply and Ethernet .....................................................................................................24
5.3
Antenna connectors ................................................................................................................25
5.4
Suitable antenna cables and antennas...................................................................................26
5.5
Digital input/output ..................................................................................................................29
5.6
Replacing the PLUG (C-PLUG or KEY-PLUG) ......................................................................29
Technical specifications ........................................................................................................................ 31
6.1
7
Dimension drawings................................................................................................................34
Certification ........................................................................................................................................... 37
Index..................................................................................................................................................... 39
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
3
Contents
SCALANCE W788-x / W748-1
4
Operating Instructions, 11/2014, A5E03678333-07
Information on the Internet
1
Bitte beachten Sie die Warnhinweise und zusätzlichen Informationen in der
Kompaktbetriebsanleitung in Ihrer Sprache im Internet:
http://support.automation.siemens.com/ww/view/at/10806097
http://support.automation.siemens.com/ww/view/ch/10806097
http://support.automation.siemens.com/ww/view/de/10806097
http://support.automation.siemens.com/ww/view/li/10806097
http://support.automation.siemens.com/ww/view/lu/10806097
Please observe the warnings and additional information in the compact operating
instructions in your language in the Internet:
http://support.automation.siemens.com/ww/view/au/10806097
http://support.automation.siemens.com/ww/view/ca/10806097
http://support.automation.siemens.com/ww/view/gb/10806097
http://support.automation.siemens.com/ww/view/ie/10806097
http://support.automation.siemens.com/ww/view/us/10806097
http://support.automation.siemens.com/ww/view/za/10806097
Veuillez tenir compte des avertissements et informations supplémentaires de la notice de
service dans votre langue sur Internet:
http://support.automation.siemens.com/ww/view/be/10806097
http://support.automation.siemens.com/ww/view/ch/10806097
http://support.automation.siemens.com/ww/view/fr/10806097
http://support.automation.siemens.com/ww/view/lu/10806097
Si prega di tenere conto delle avvertenze e ulteriori informazioni nell’istruzione operativa
compatta nella relativa lingua in Internet:
http://support.automation.siemens.com/ww/view/it/10806097
Se ruega tener en cuenta las advertencias y las informaciones complementarias contenidas
en las instrucciones de servicio (resumen) en español en Internet:
http://support.automation.siemens.com/ww/view/cl/10806097
http://support.automation.siemens.com/ww/view/es/10806097
Dbejte prosím na výstražné pokyny a doplňkové informace v kompaktním návodu k obsluze
ve vašem jazyce na internetu:
http://support.automation.siemens.com/ww/view/cz/10806097
Vær venligst opmærksom på de advarselsanvisninger og ekstra informationer der findes på
dit sprog i kompaktdriftsvejledningen på internettet:
http://support.automation.siemens.com/ww/view/dk/10806097
Noudata lyhyen käyttöoppaan sisältämiä varoituksia ja huomio sen muutkin tiedot. Oman
kielisesi käyttöoppaan löydät internetistä osoitteesta:
http://support.automation.siemens.com/ww/view/fi/10806097
Λάβετε υπόψη τις υποδείξεις προειδοποίησης και τις πρόσθετες πληροφορίες των
συνοπτικών οδηγιών χρήσης που παρέχονται στη γλώσσα σας στο Διαδίκτυο:
http://support.automation.siemens.com/ww/view/gr/10806097
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
5
Information on the Internet
请注意互联网上精编版操作说明相应语言版本中的警告提示和附加信息:
http://support.automation.siemens.com/ww/view/cn/10806097
http://support.automation.siemens.com/ww/view/hk/10806097
http://support.automation.siemens.com/ww/view/sg/10806097
Kérjük, vegye figyelembe az interneten található, az Ön anyanyelvén íródott kompakt
használati útmutatóban található figyelmeztetéseket és további információkat:
http://support.automation.siemens.com/ww/view/hu/10806097
Skoðið vel viðvaranir og aðrar upplýsingar í notkunarleiðbeiningunum á ykkar tungumáli á
internetinu:
http://support.automation.siemens.com/ww/view/is/10806097
インターネットサイトにある各言語の注意事項および追加情報を参照してください:
http://support.automation.siemens.com/ww/view/jp/10806097
사이트에 있는 귀하의 언어로 된 콤팩트 사용 설명서에 명시된 경고 지침 및 추가 정보를
준수하십시오:
http://support.automation.siemens.com/ww/view/kr/10806097
http://support.automation.siemens.com/ww/view/kw/10806097
Neem goed nota van de waarschuwingen en extra informatie in de compacte
gebruiksaanwijzing in uw taal op internet:
http://support.automation.siemens.com/ww/view/be/10806097
http://support.automation.siemens.com/ww/view/nl/10806097
Vennligst følg advarslene og annen informasjon i den kompakte bruksanvisningen, som du
finner på ditt språk på internett:
http://support.automation.siemens.com/ww/view/no/10806097
Proszę zwrócić uwagę na ostrzeżenia oraz dodatkowe informacje w kompaktowej instrukcji
obsługi, dostępnej w odpowiednim języku w internecie:
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Observera varningshänvisningarna och extrainformationerna i kompaktbruksanvisningen
som finns på ditt språk på internet:
http://support.automation.siemens.com/ww/view/se/10806097
İnternette kendi dilinizdeki kompakt işletim kılavuzunda yer alan uyarı notlarına ve ek
bilgilere lütfen dikkat edin:
http://support.automation.siemens.com/ww/view/tr/10806097
SCALANCE W788-x / W748-1
6
Operating Instructions, 11/2014, A5E03678333-07
2
Introduction
2.1
Information on the Operating Instructions
Validity of the Operating Instructions
These operating instructions cover the following products:
Article no. of the RoW version
Article no. of the US version
SCALANCE W788-1 RJ-45
6GK5788-1FC00-0AA0
6GK5788-1FC00-0AB0
SCALANCE W788-1 M12
6GK5788-1GD00-0AA0
6GK5788-1GD00-0AB0
SCALANCE W788-2 RJ-45
6GK5788-2FC00-0AA0
6GK5788-2FC00-0AB0
SCALANCE W788-2 M12
6GK5788-2GD00-0AA0
6GK5788-2GD00-0AB0
SCALANCE W788-2 M12 EEC
6GK5788-2GD00-0TA0
6GK5788-2GD00-0TB0
SCALANCE W748-1 RJ-45
6GK5748-1FC00-0AA0
6GK5748-1FC00-0AB0
SCALANCE W748-1 M12
6GK5748-1GD00-0AA0
6GK5748-1GD00-0AB0
Access points
Dual access points
Ethernet client modules
If information relates to all the named products, the term SCALANCE W7x8 will be used.
These operating instructions apply to the following software version:
● SCALANCE W7x8 with firmware as of version 5.00
Purpose of the Operating Instructions
Using the Operating Instructions, you will be able to install and connect the SCALANCE
W7x8 correctly. The configuration and the integration of the device in a WLAN are not
described in these instructions.
Documentation on the accompanying CD
You will find detailed information about configuration in the SCALANCE W700 configuration
manuals on the accompanying SIMATIC NET IWLAN CD under the file name:
PH_SCALANCE-W700-WBM_76.pdf and PH_SCALANCE-W700-CLI_76.pdf
Note
Make sure that you read the explanations and instructions in the README.txt file
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
7
Introduction
2.2 Structure of the type designations
2.2
Structure of the type designations
The type designation of a SCALANCE W7x8 is made up of several parts that have the
following meaning:
SCALANCE W788-x / W748-1
8
Operating Instructions, 11/2014, A5E03678333-07
Description
3.1
3
Components of the product
The following components are supplied with the product:
● SCALANCE W7x8
● 2 protective caps for the M12 sockets (only with device variant M12 / IP65)
● 1 connector for the supply voltage (only with device variant RJ-45 / IP30)
● 1 connector for the digital input/output (only with device variant RJ-45 / IP30)
● 2 screws for mounting on an S7-300 standard rail
● SIMATIC NET Industrial Wireless LAN CD
Please check that the consignment you have received is complete. If the consignment is
incomplete, contact your supplier or your local Siemens office.
Note
The bracket for installation on a DIN rail does not ship with the product. You obtain a set of 3
under the following order number: 6GK5 798-8ML00-0AB3.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
9
Description
3.2 Description of the device
3.2
Description of the device
W7x8x-x RJ-45 - degree of protection IP30
①
②
LEDs
Connecting connectors, R-SMA type female
•
Devices with one IWLAN interface: 3 connectors on the top (covered in the figure).
•
Devices with two IWLAN interfaces: 3 connectors on the top and 3 on the underside.
③
④
⑤
Connector for power supply
⑥
⑦
⑧
Connector for the digital input/output (not with W788C)
Connector for Ethernet, RJ-45 type
Screw-down cover for the
- reset button and the
- PLUG compartment (not with W788C)
PLUG compartment (not with W788C)
Reset button
Figure 3-1
Device description of the RJ-45 variant
SCALANCE W788-x / W748-1
10
Operating Instructions, 11/2014, A5E03678333-07
Description
3.2 Description of the device
W7x8x-x M12 - degree of protection IP65
①
Connecting connectors, N-Connect type female
•
Devices with one IWLAN interface: 3 connectors on the top (covered in the figure).
•
Devices with two IWLAN interfaces: 3 connectors on the top and 3 on the underside.
②
③
④
⑤
LEDs
⑥
⑦
PLUG compartment (not with W788C)
Connector for the supply voltage, type M12 (with cover)
Connector for Ethernet, M12 type (with cover)
Screw-down cover for the
- reset button and the
- PLUG compartment (not with W788C)
Reset button (covered in the figure)
Figure 3-2
Device description of the M12 variant
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
11
Description
3.3 LED display
3.3
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 W7x8:
LEDs with RJ-45 variants
LEDs with M12 variants
Note
The "R2" LED only exists on devices with two IWLAN interfaces.
LED
Color
Meaning
L1
Green
Power supply L1.
L2
Green
Power supply L2.
NOT WITH M12 VARIANTS.
PoE
Green
Power supply using Power over Ethernet.
P1
Green
There is a connection via the Ethernet interface (Link).
Green and yellow flashing
alternately
Data transfer via the Ethernet interface.
Green
SCALANCE W7x8 in access point mode:
R1
The WLAN interface is initialized and ready for operation.
SCALANCE W7x8 in client Mode:
There is a connection over the first WLAN interface.
Green and yellow flashing
alternately
Data transfer over the first WLAN interface.
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Description
3.3 LED display
LED
Color
Meaning
Flashing fast
yellow
SCALANCE W7x8 in 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.
SCALANCE W7x8 in client mode:
The client waits for the MAC address due to the setting "Automatic" for
the "MAC mode" parameter and is connected to no access point.
R2
SCALANCE W7x8 in client mode:
Yellow
flashing 3 x
short, 1 x long
The client waits for the MAC address due to the setting "Automatic" for
the "MAC mode" parameter and is connected to an access point.
Green
SCALANCE W7x8 in access point mode:
The WLAN interface is initialized and ready for operation.
SCALANCE W7x8 in client mode:
The LED is always off because the 2nd interface is not available in client
mode.
Green and yellow flashing
alternately
SCALANCE W7x8 in access point mode:
Data transfer over the second WLAN interface.
SCALANCE W7x8 in client mode:
The LED is always off because the 2nd interface is not available in client
mode.
Flashing fast
yellow
SCALANCE W7x8 in 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.
SCALANCE W7x8 in client mode:
The LED is always off because the 2nd interface is not available in client
mode.
F
P1
R1
R2
Red
An error occurred during operation with the SCALANCE W7x8.
Red
R1 or R2 flashing yellow simultaneously
A primary user was found on all enabled channels.
Flashing yellow
"Flashing" enabled using SIMATIC NET Primary Setup Tool (PST).
Note
Primary user (radar) on all enabled channels
If the device detects a primary user (for example radar signals) on all enabled channels of
WLAN interface 1, the LEDs F and R1/R2 flash. No data traffic is then possible for the next
30 minutes. After this time, the device runs the scan again and checks whether a primary
user still exists. If no primary user is detected, data traffic is possible again.
The wait time of 30 minutes is necessary due to legal requirements and cannot be shortened
even by restarting the device.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
13
Description
3.4 Reset button
3.4
Reset button
The Reset button is located behind the screw-down cover on the underside of the housing.
The button has several functions:
● Restart of the device
To restart the device, press the Reset button briefly.
Note
If you make changes to the configuration and restart immediately afterwards with the
reset button, the changes may be lost. If you restart the device using the WBM (menu
command "System > Restart") or using the CLI (command "restart" in the Privileged
EXEC Modus), the configuration changes are always retained.
● Loading new firmware
If the normal procedure with the "Load & Save" menu of Web Based Management does
not work, the reset button can be used to load new firmware. This situation can occur if
there is a power outage during the normal firmware update. You will find more information
in the section "Troubleshooting/FAQ" in the SCALANCE W700 WBM configuration
manual.
● Restoring the default parameters (factory default) Additional information can be found in
the section "Restoring the default parameters" in the SCALANCE W700 WBM
configuration manual.
SCALANCE W788-x / W748-1
14
Operating Instructions, 11/2014, A5E03678333-07
4
Mounting
CAUTION
Minimum distance to antennas
Fit the device so that there is a minimum clearance of 20 cm between antennas and
persons.
WARNING
If a device is operated in an ambient temperature of more than 50 °C, the temperature of
the device housing may be higher than 70 °C. The device must therefore be installed so
that it is only accessible to service personnel or users that are aware of the reason for
restricted access and the required safety measures at an ambient temperature higher than
50 °C.
WARNING
When used in hazardous environments corresponding to Class I, Division 2 or Class I,
Zone 2, the device must be installed in a cabinet or a suitable enclosure.
General notes on use according to ATEX and IECEx
WARNING
To comply with EC Directive 94/9 (ATEX95) or the conditions of IECEx, this enclosure or
cabinet must meet the requirements of at least IP54 in compliance with EN 60529.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
15
Mounting
4.1 Securing the housing
4.1
Securing the housing
Grounding terminal
WARNING
Operation of the W7x8 only with connected ground cable
To operate the SCALANCE W7x8 safely, the housing must make contact with a chassis
ground cable. Do not use the W7x8 without a ground cable connected.
The chassis ground cable is fixed with a screw. On the rear of the device there is an M4
threaded hole for this purpose.
Installation options
To install the W7x8, you have the following options:
● Wall mounting
● Installing on the S7-300 standard rail
● Installing on a DIN rail
CAUTION
Danger of injury by falling objects
If the SCALANCE W7x8 is subjected to strong vibration (> 10 g), mounting on a 35 mm DIN
rail does not provide adequate support. Under such conditions, the device can come out of
the mounting and may cause injury.
In this case, install the device on an S7-300 standard rail or on a wall.
Strain relief for the cables
Regardless of the type of installation, make sure that there is suitable strain relief for the
connecting cable.
Installation location
There are no restrictions regarding the installation location for the device. Antennas, in
particular directional antennas, must be mounted according to their characteristics.
Note
- If you are installing outdoors, use the SCALANCE W786.
- The minimum distance to fluorescent lamps should be 0.5 m.
- When installed in a cabinet, we recommend that you do not install relays on the same or on
directly neighboring mounting rails.
SCALANCE W788-x / W748-1
16
Operating Instructions, 11/2014, A5E03678333-07
Mounting
4.2 Wall mounting
4.2
Wall mounting
Use the holes in the housing to screw the device to the wall or on a horizontal surface. The
location of the holes can be seen in the following figure:
Figure 4-1
Drilling pattern (dimensions in mm)
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
17
Mounting
4.3 Installing on the S7-300 standard rail
4.3
Installing on the S7-300 standard rail
Follow the steps below to install the SCALANCE W7x8 on a vertical S7-300 rail:
1. Place the device on the upper edge of the S7-300 standard rail (position A).
2. Screw the device to the rail using the supplied screw (position B).
Figure 4-2
Installing on an S7-300 standard rail
SCALANCE W788-x / W748-1
18
Operating Instructions, 11/2014, A5E03678333-07
Mounting
4.4 Installing on a DIN rail
4.4
Installing on a DIN rail
The SCALANCE W7x8 is suitable for rail mounting on 35 mm DIN EN 50022 rails.
Bracket for DIN rail mounting
Note
The bracket for installation on a DIN rail does not ship with the product. You obtain a set of 3
under the following order number: 6GK5 798-8ML00-0AB3.
The bracket consists of the following parts:
● 1 DIN rail slider
● 1 spring
● 2 screws
Mount the bracket on the rear of the device as shown in the figure below:
Figure 4-3
Fitting the DIN rail slider
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
19
Mounting
4.4 Installing on a DIN rail
Installing on the DIN rail
The following figure shows the W7x8 mounted on a DIN rail. Follow the steps outlined below:
1. Place the device on the upper edge of the DIN rail (position A).
2. Pull the spring-mounted DIN rail slider (position B) down and press the device against the
DIN rail until it locks in place.
Figure 4-4
Installing on a DIN rail
SCALANCE W788-x / W748-1
20
Operating Instructions, 11/2014, A5E03678333-07
Connecting up
5.1
5
Lightning protection, power supply and grounding
Notes on lightning protection
WARNING
Danger due to lightning strikes
Antennas installed outdoors must be within the area covered by a lightning protection
system. Make sure that all conducting systems entering from outdoors can be protected by
a lightning protection potential equalization system.
When implementing your lightning protection concept, make sure you adhere to the VDE
0182 or IEC 62305 standard.
Suitable lightning protectors are available in the range of accessories of SIMATIC NET
Industrial WLAN:
● Lightning protector LP798-1N (order no. 6GK5798-2LP00-2AA6)
● Lightning protector LP798-2N (order no. 6GK5798-2LP10-2AA6)
Note
We recommend that you use the maintenance-free lightning protector LP798-2N.
Exception:
When there is also DC power is supplied via the antenna cable. In this case, only the
lightning protector LP798-1N can be used.
WARNING
Danger due to lightning strikes
Installing this lightning protector between an antenna and a SCALANCE W700 is not
adequate protection against a lightning strike. The LP798-1N lightening protector only
works within the framework of a comprehensive lightning protection concept. If you have
questions, ask a qualified specialist company.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
21
Connecting up
5.1 Lightning protection, power supply and grounding
Note
The requirements of EN61000-4-5, surge immunity tests on power supply lines, are met only
when a Blitzductor is used with 24 VDC:
BVT AVD 24
type no. 918 422
Manufacturer: DEHN+SÖHNE GmbH+Co.KG, Hans Dehn Str. 1, Postfach 1640, D 92306 Neumarkt, Germany
Safety extra low voltage
WARNING
Danger to life from overvoltage, fire hazard
SCALANCE W700 devices are designed for operation with a directly connectable safety
extra-low voltage or with the power supply adapters available as accessories (available
only for the SCALANCE W786 device). Therefore only safety extra-low voltage (SELV) with
limited power source (LPS) complying with IEC950/EN60950/VDE0805 may be connected
to the power supply terminals.
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
The power supply unit to supply the SCALANCE W700 must comply with NEC Class 2
(requirements of class 2 for power supply units of the "National Electrical Code, table 11
(b)") or SELV with LPS (Limited Power Source) EN 60950-1. If the power supply is
designed redundantly (two separate power supplies), both power supplies must meet these
requirements.
Exception:
Power supply with PELV (according to VDE 0100-410 or IEC 60364-4-41) is also possible if
the generated rated voltage does not exceed the voltage limits 25 VAC or 60 VDC.
WARNING
Transient overvoltage
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
SCALANCE W788-x / W748-1
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Connecting up
5.1 Lightning protection, power supply and grounding
Grounding
NOTICE
Damage to the device due to potential differences
To fully eliminate the influence of electromagnetic interference, the device must be
grounded. There must be no potential difference between the following parts, otherwise the
device or other connected device could be severely damaged:
• Housing of the SCALANCE W700 and the ground potential of the antenna.
• Housing of the SCALANCE W700 and the ground potential of a device connected over
Ethernet.
• Housing of the SCALANCE W700 and the shield contact of the connected Ethernet
cable.
Connect both grounds to the same foundation earth or use an equipotential bonding cable.
WARNING
EXPLOSION HAZARD
DO NOT CONNECT OR DISCONNECT EQUIPMENT WHEN A FLAMMABLE OR
COMBUSTIBLE ATMOSPHERE IS PRESENT.
WARNING
EXPLOSION HAZARD
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION
2 OR ZONE 2.
WARNING
EXPLOSION HAZARD
DO NOT OPEN WHEN ENERGIZED.
General notes on use in hazardous areas according to UL-HazLoc
WARNING
EXPLOSION HAZARD
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE
NON-HAZARDOUS.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or nonhazardous locations only.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
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Connecting up
5.2 Power supply and Ethernet
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
5.2
Power supply and Ethernet
Connecting the power supply
Models RJ-45 / degree of protection IP30
The four-pin connecting socket has the following pin assignment:
Pin
Signal
Description
1
L1+
24 VDC
2
M1
Ground
3
M2
Ground
4
L2+
24 VDC
The M12 socket for the power supply has the following pin assignment:
Pin
Signal
Description
1
L1
24 VDC
-
-
-
3
M1
Ground
-
-
-
Power over Ethernet (PoE)
With the SCALANCE W7x8, power supply using Power over Ethernet (PoE) is also possible.
The devices support the standards 802.3at type 1 (IEEE 802.3af ) and IEEE 803.at type 2.
● Gigabit Ethernet
When you connect to gigabit Ethernet, the power supply is a phantom power supply over
data wires 1, 2, 3 and 6. This corresponds to alternative A according to IEEE 802.3af.
● Fast Ethernet
On an 8-wire Fast Ethernet cable, the power is supplied via the free data wires 4, 5, 7
and 8. This corresponds to alternative B according to IEEE 802.3af.
Note
Disabling the PoE power supply
Before you pull a plug via which the device is supplied with power using PoE, disable the
relevant PoE power supply.
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Connecting up
5.3 Antenna connectors
Note
No power sourcing equipment (PSE)
The W7x8 cannot be used as a PoE power supply for other devices.
Ethernet connector
Depending on the model, the connection of the SCALANCE W7x8 to Ethernet is either via
an RJ-45 interface or via an M12 interface.
5.3
Antenna connectors
R-SMA for degree of protection IP30
The variants of the SCALANCE W7x8 RJ-45 have antenna sockets of the type R-SMA:
● Variants with an IWLAN interface (W7x8-1) have 3 antenna sockets on the top of the
device.
● Variants with two IWLAN interfaces (W788-2) have 6 antenna sockets, 3 on the top and 3
on the underside of the device.
N-Connect for degree of protection IP65
The variants of the SCALANCE W7x8 M12 have antenna sockets of the type N-Connect:
● Variants with an IWLAN interface (W7x8-1) have 3 antenna sockets on the top of the
device.
● Variants with two IWLAN interfaces (W788-2) have 6 antenna sockets, 3 on the top and 3
on the underside of the device.
When you install the SCALANCE W7x8 in a cabinet, detached antennas must be used due
to the restricted communication. Suitable connecting cable for a connection between
SCALANCE W7x8 and a detached antenna are available from SIMATIC NET. You will find
detailed information in the following section.
Note
If both interfaces of access points with two IWLAN interfaces are operated in the same
frequency range,
• the distance between the antennas connected to R1A1, R1A2, R1A3 and those
connected to R2A1, R2A2, R2A3 must be at least 1 m.
• there may be wireless interference on one or both IWLAN interfaces if the transmit power
is higher than 15 dB.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
25
Connecting up
5.4 Suitable antenna cables and antennas
Note
Terminating resistor
Each WLAN interface has three antenna connectors. Connectors that are not used must
have a terminating resistor fitted.
The antennas R1A1 and R2A1 must be always be connected as soon as the associated
WLAN Interface is turned on. if no antenna is connected, the relevant interface must also be
disabled for RX and TX. Otherwise, there may be transmission disruptions.
You will find information on the configuration of the antennas in the following documents:
• SCALANCE W7x8
SCALANCE W700 configuration manual, section "Configuring antennas"
• SCALANCE W7x8C
SCALANCE WLC711 User Guide, section "Configuring wireless AP radio properties"
5.4
Suitable antenna cables and antennas
N-Connect/R-SMA connecting cable for RJ-45
The N-Connect/R-SMA male/male flexible connecting cable is available as an accessory for
connecting to a SCALANCE W700 with R-SMA connectors.
Length
Order number
0.3 m
6XV1875-5CE30
1m
6XV1875-5CH10
2m
6XV1875-5CH20
5m
6XV1875-5CH50
10 m
6XV1875-5CN10
N-Connect / N-Connect connecting cable for M12
The N-Connect/N-Connect male/male flexible connecting cable is available as an accessory
for connecting to a SCALANCE W700 M12 or for connection to the LP798-1N/LP798-2N
lightning protector.
Length
Order number
1m
6XV1875-5AH10
2m
6XV1875-5AH20
5m
6XV1875-5AH50
10 m
6XV1875-5AN10
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Connecting up
5.4 Suitable antenna cables and antennas
Connecting cable IWLAN QMA/N-Connect male/female
Flexible adapter cable of antennas with QMA socket for antenna connecting cable. pack of 3
Length
Order number
1m
6XV1875-5JH10
Suitable antennas
Note
When you select an antenna, keep in mind the national approvals for your SCALANCE
W7x8.
The following antennas have been approved for use with a SCALANCE W7x8:
Type
Properties
Order number
ANT792-6MN
Omni antenna, mast/wall mounting, 6 dBi
2.4 GHz, N-Connect female
6GK5 792-6MN00-0AA6
ANT793-6MN
Omni antenna, mast/wall mounting, 5 dBi
5 GHz, N-Connect female
6GK5 793-6MN00-0AA6
ANT792-8DN
Directional antenna, mast/wall mounting,
14 dBi
2.4 GHz, N-Connect female
6GK5 792-8DN00-0AA6
ANT793-8DJ
Directional antenna, mast/wall mounting,
18 dBi
5 GHz, 2 x N-Connect female
6GK5 793-8DJ00-0AA0
ANT793-8DK
Directional antenna, mast/wall mounting,
23 dBi
5 GHz, 2 x N-Connect female
6GK5 793-8DK00-0AA0
ANT793-8DP
Directional antenna, mast/wall mounting,
13 / 13.5 dBi
4.9 GHz and 5 GHz, N-Connect female
6GK5793-8DP00-0AA0
ANT793-6DT
Wide angle antenna (MIMO), mast/wall
mounting, 8 dBi
5 GHz, 3 x QMA connector female
6GK5 793-6DT00-0AA0
ANT795-6DC
Wide angle antenna, mast/
wall mounting, 9 dBi
2.4 GHz and 5 GHz, N-Connect female
6GK5 795-6DC00-0AA0
ANT793-6DG
Wide angle antenna, mast/
wall mounting, 9 dBi
5 GHz, 2 x N-Connect female
6GK5 793-6DG00-0AA0
ANT795-6MN
Omni antenna, mounted on roof/vehicle,
6/8 dBi
2.4 GHz and 5 GHz, N-Connect female
6GK5 795-6MN10-0AA6
ANT795-6MT
Omni antenna (MIMO), mounted on
roof/vehicle/ceiling, 5/7 dBi
2.4 GHz and 5 GHz, 3 x QMA connector
female
6GK5 795-6MT00-0AA0
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
27
Connecting up
5.4 Suitable antenna cables and antennas
Type
Properties
Order number
ANT795-4MC
Omnidirectional antenna, 3/5 dBi, 2.4 GHz
and 5 GHz, IP65, N-Connect male for
direct installation on the device, straight
connector.
6GK5 795-4MC00-0AA3
ANT795-4MD
Omnidirectional antenna, 3/5 dBi, 2.4 GHz
and 5 GHz, IP65, N-Connect male for
direct installation on the device, 90° connector.
6GK5 795-4MD00-0AA3
ANT795-4MA
Omni antenna, directly on the device, 3/5
dBi
2.4 GHz and 5 GHz, IP30, R-SMA connector male for direct mounting on the
device, connector angle adjustable 0° to
180°.
6GK5 795-4MA00-0AA3
ANT792-4DN
RCoax helical antenna, circular polarization, 4 dBi, 2.4 GHz, N-connect female.
6GK5 792-4DN00-0AA6
ANT793-4MN
RCoax λ5/8 antenna with vertical polarization, 6 dBi, 5 GHz, N-connect female.
6GK5 793-4MN00-0AA6
IWLAN RCoax cable 2.4 Omni antenna, 0 dBi
GHz PE 1/2"
2.400 - 2.485 GHz, N-Connect female.
6XV1875-2A
IWLAN RCoax cable 5
GHz PE 1/2"
6XV1875-2D
Omni antenna, 0 dBi
5.150 - 5.875 GHz, N-Connect female.
NOTICE
ANT795-4MA
The ANT795-4MA antenna has degree of protection IP30 and is therefore suitable for dry
environments.
Note
ANT793-8DJ
The antenna ANT793-8DJ may only be used with the antenna cable 6XV1875-5CH50 (5 m
length) or 6XV1875-5CN10 (10 m length). Other antenna cables are not permitted.
Notice for USA/Canada
Only one antenna per device can be used (connected to R1A1, R1A2 or R2A1, R2A2).
Note
ANT793-8DK
The antenna ANT793-8DK may only be used with the antenna cable 6XV1875-5CN10 (10 m
length). Other antenna cables are not permitted.
Notice for USA/Canada
Only one antenna per device can be used (connected to R1A1, R1A2 or R2A1, R2A2).
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Connecting up
5.5 Digital input/output
5.5
Digital input/output
A digital input/output is only available with the RJ-45 variants.
The digital input/output (relay contact) is a floating switch with which error/fault states can be
signaled by breaking the contact.
NOTICE
The voltage at the digital input/output must not exceed 30 VDC and not fall below -30 VDC,
otherwise the digital input/output will be destroyed.
The digital input/output is connected to a 4-pin plug-in terminal block with the following pin
assignment:
5.6
Pin
Signal
Function
1
DQ (output)
Relay 24 VDC / 1 A
2
1L (output)
Relay 24 VDC / 1 A
3
DI (input plus)
24 VDC
4
1M (input ground)
-
Replacing the PLUG (C-PLUG or KEY-PLUG)
How it works
If a new C-PLUG or KEY-PLUG with a valid license is inserted in a SCALANCE W7x8, the
configuration stored locally on the device is saved on the PLUG.
If an incorrect PLUG, for example from another product or a damaged plug is inserted, the
device signals an error with the red LED. The user then has the choice of either removing
the PLUG again or selecting the option to reformat the PLUG.
In terms of the PLUG, the WLAN devices work in two modes:
● Without PLUG
The device stores the configuration in internal memory. This mode is active when no
PLUG is inserted.
● With PLUG
The configuration stored on the PLUG is displayed over the user interfaces. If changes
are made to the configuration, the device stores the configuration directly on the PLUG
and in the internal memory. This mode is active as soon as a PLUG is inserted. As soon
as the device is started with a PLUG inserted, the SCALANCE W700 starts up with the
configuration data on the PLUG.
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
29
Connecting up
5.6 Replacing the PLUG (C-PLUG or KEY-PLUG)
NOTICE
Do not remove or insert a C-PLUG / KEY-PLUG during operation!
A PLUG may only be removed or inserted when the device is turned off.
The device checks whether or not a PLUG is inserted at one second intervals. If it is
detected that the PLUG was removed, there is a restart.
If a KEY-PLUG was inserted in the device, the device changes to a defined error state
following the restart. With SCALANCE W, the available wireless interfaces are deactivated
in this case.
Removing the PLUG
Follow the steps below to remove a PLUG from the device:
1. Turn off the power to the device.
2. Remove the cover of the PLUG on the underside of the device.
3. Insert a screwdriver between the front edge of the PLUG and the slot and release the
PLUG.
4. Remove the PLUG from the slot.
5. Screw the cover back onto the device.
Inserting the PLUG
Follow the steps below to insert a PLUG in the device:
1. Turn off the power to the device.
2. Remove the cover of the PLUG on the underside of the device.
3. The housing of the PLUG has a protruding ridge on the long side. The slot has a groove
at this position. Insert the PLUG correctly oriented into the slot. The PLUG is correctly
inserted when it is completely inside the device and does not jut out of the slot.
4. Screw the cover back onto the device.
Licenses on the KEY-PLUG
A C-PLUG only stores information about the configuration of a device. In addition to the
configuration, a KEY-PLUG also contains a license with which you can enable special
functions, for example iFeatures:
Type
Order number
KEY-PLUG W780 iFeatures AP
6GK5907-8PA00
KEY-PLUG W740 iFeatures Client
6GK5907-4PA00
KEY-PLUG W700 Security
6GK5907-0PA00
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
6
Technical specifications
Device variants
The technical specifications of the product variants of the SCALANCE W7x8 are largely
identical. Unless indicated otherwise in the table, the following tables apply to all W7x8
product variants:
Data transfer
Ethernet transfer rate
BASE-T 10/100/1000 Mbps
Wireless transmission rate
1 ... 450 Mbps
Wireless standards supported
IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
IEEE 802.11h
IEEE 802.11n
Power supply standards supported
IEEE 802.3at type 1 (802.3af) and 802.3at type 2
(Power over Ethernet)
Note
You will find detailed information on the transmit power and receiver sensitivity in the
document "Leistungsdaten 802.11abgn PCIe Minicard / Characteristics 802.11abgn PCIe
Minicard" (REF_W700-RadioInterface_74.pdf).
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
31
Technical specifications
Interfaces
Note
Bridging a power outage is possible only with an input voltage of 24 VDC (-15% to +20%).
Direct supply 24 VDC
min. 19.2 VDC, max. 28.8 VDC via M12 connector
(IP65 variant) or terminal block (IP30 version)
Power
Power over Ethernet IEEE802.3at
min. 36 VDC, max. 57 VDC via RJ-45 jack
The following applies to PoE:
Current supply lines must be electrically isolated
according to IEEE 802.3at , dielectric resistance > 2
Mohms.
Data
W7x8-x RJ-45
W788C-2 RJ-45
RJ-45 jack for Ethernet
3 or 6 antenna sockets of type R-SMA female
W7x8-x M12
M12 jack for Ethernet
W788C-2 M12
3 or 6 antenna sockets of the type N-Connect female
W7x8-x RJ-45
Digital input
Rated voltage 24 VDC safety-extra low voltage
(SELV)
For state "1": 13 to 30 VDC
For state "0": -30 V to 3 VDC
Maximum input current 8 mA
Maximum cable length 30 m
Inputs isolated from electronics.
Electrical data
Maximum power consumption
15.6 W
A wireless card:
Typical power consumption at full load
24 VDC, 10.7 W
Two wireless cards:
Typical power consumption at full load
24 VDC, 15 W
Dimensions without antennas
(H x W x D)
W7x8-x RJ-45 (IP30):
158 mm x 200 mm x 79 mm
Construction
W7x8x M12 (IP65):
175.2 mm x 200 mm x 79 mm
Weight:
W7x8-x RJ-45 (IP 30):
1.7 kg
W7x8-x M12 (IP65):
1.7 kg
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Technical specifications
Permitted ambient conditions
Operating temperature
-20 °C to +60 °C
Transportation/storage temperature
-40 °C to +70 °C
Degree of protection
Tested to IP65 or IP30
MTBF (mean time between failure)
W788-1
41 years
W788-2, W788C-2
35 years
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
33
Technical specifications
6.1 Dimension drawings
6.1
Dimension drawings
The following dimensions are specified in mm.
Dimension drawing of the SCALANCE W7x8-2 RJ45 (degree of protection IP30)
Figure 6-1
Front view RJ-45
Figure 6-2
View from above RJ-45
SCALANCE W788-x / W748-1
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Operating Instructions, 11/2014, A5E03678333-07
Technical specifications
6.1 Dimension drawings
Dimension drawing of the SCALANCE W7x8-2 M12 (degree of protection IP65)
Figure 6-3
Front view M12
Figure 6-4
View from above M12
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
35
Technical specifications
6.1 Dimension drawings
SCALANCE W788-x / W748-1
36
Operating Instructions, 11/2014, A5E03678333-07
7
Certification
You will find the approvals of the products in the reference work "Approvals SCALANCE
W700 802.11n" on the Internet pages of Siemens Industry Online Support:
● Using the search function:
support.automation.siemens.com (http://support.automation.siemens.com/WW/view/en)
Enter the entry ID of the relevant manual as the search item.
● In the navigation panel on the left-hand side in the area "Industrial Communication":
Industrial communication
(http://support.automation.siemens.com/WW/view/en/10805878/133300)
Go to the required product group and make the following settings:
"Entry list" tab, Entry type "Manuals / Operating Instructions"
You will find the documentation for the SIMATIC NET products relevant here on the data
storage medium that ships with some products:
● Product CD / product DVD
● SIMATIC NET Manual Collection
● SIMATIC NET IWLAN CD
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
37
Certification
SCALANCE W788-x / W748-1
38
Operating Instructions, 11/2014, A5E03678333-07
Index
A
R
Antenna cables, 26
Antennas, 26
Article numbers, 7
Reset button, 14
Resetting the device, 14
Restart of the device, 14
C
S
Connectors, 9
Safety extra low voltage, 21, 22
Scope of delivery, 9
SELV, 21
D
Dimension drawings, 34
Documentation on the CD, 7
T
Type designations, 8
E
Ethernet, 24
G
Grounding, 21, 23
I
Installation
DIN rail, 19
S7-300 standard rail, 18
Wall mounting, 17
L
LED display, 12
Lightning protection, 21
Loading firmware, 14
P
Power supply, 24
Primary user radar, 12
Protective caps, 9
SCALANCE W788-x / W748-1
Operating Instructions, 11/2014, A5E03678333-07
39
Index
SCALANCE W788-x / W748-1
40
Operating Instructions, 11/2014, A5E03678333-07
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