Siemens SCALANCE W788-1 User manual

SCALANCE W788-x / W748-1
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SIMATIC NET
Industrial Wireless LAN
SCALANCE W788-x / W748-1
Operating Instructions
06/2016
A5E03678333
-10
Information on the Internet
1
Introduction
2
Security recommendations
3
Description
4
Mounting
5
Connecting up
6
Technical specifications
7
Dimension drawings
8
Certification
9

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03678333-10
Ⓟ
07/2016 Subject to change
Copyright © Siemens AG 2011 - 2016.
All rights reserved
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.

SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 3
Contents
1 Information on the Internet ...................................................................................................................... 5
2 Introduction............................................................................................................................................. 7
2.1 Information on the Operating Instructions ................................................................................7
2.2 Structure of the type designations ............................................................................................8
3 Security recommendations...................................................................................................................... 9
4 Description............................................................................................................................................ 13
4.1 Components of the product ....................................................................................................13
4.2 Description of the device ........................................................................................................14
4.3 LED display.............................................................................................................................16
4.4 Reset button............................................................................................................................18
5 Mounting............................................................................................................................................... 19
5.1 Securing the housing ..............................................................................................................20
5.2 Wall mounting .........................................................................................................................22
5.3 Installing on the S7-300 standard rail .....................................................................................23
5.4 Installing on a DIN rail.............................................................................................................24
6 Connecting up....................................................................................................................................... 27
6.1 Lightning protection, power supply and grounding .................................................................27
6.2 Power supply and Ethernet.....................................................................................................31
6.3 Antenna connectors ................................................................................................................33
6.4 Suitable antenna cables and antennas...................................................................................36
6.5 Digital input/output ..................................................................................................................40
6.6 Replacing the PLUG (C-PLUG or KEY-PLUG) ......................................................................41
7 Technical specifications ........................................................................................................................ 43
7.1 Technical specifications of the SCALANCE W7x8-1).............................................................43
7.2 Technical specifications of the SCALANCE W7x8-2).............................................................46
8 Dimension drawings.............................................................................................................................. 49
9 Certification........................................................................................................................................... 51
Index..................................................................................................................................................... 53

Contents
SCALANCE W788-x / W748-1
4Operating Instructions, 06/2016, A5E03678333-10

SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 5
Information on the Internet
1
Bitte beachten Sie die Warnhinweise und zusätzlichen Informationen in der
Kompaktbetriebsanleitung in Ihrer Sprache im Internet:
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http://support.automation.siemens.com/ww/view/ch/10806097
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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:
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http://support.automation.siemens.com/ww/view/ca/10806097
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Veuillez tenir compte des avertissements et informations supplémentaires de la notice de
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Si prega di tenere conto delle avvertenze e ulteriori informazioni nell’istruzione operativa
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Se ruega tener en cuenta las advertencias y las informaciones complementarias contenidas
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Vær venligst opmærksom på de advarselsanvisninger og ekstra informationer der findes på
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Information on the Internet
SCALANCE W788-x / W748-1
6Operating Instructions, 06/2016, A5E03678333-10
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
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internetinu:
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Neem goed nota van de waarschuwingen en extra informatie in de compacte
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bilgilere lütfen dikkat edin:
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SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 7
Introduction
2
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
Access points
SCALANCE W788-1 RJ-45
6GK5788-1FC00-0AA0
6GK5788-1FC00-0AB0
SCALANCE W788-1 M12 6GK5788-1GD00-0AA0 6GK5788-1GD00-0AB0
Dual access points
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
Ethernet client modules
SCALANCE W748-1 RJ-45
6GK5748-1FC00-0AA0
6GK5748-1FC00-0AB0
SCALANCE W748-1 M12
6GK5748-1GD00-0AA0
6GK5748-1GD00-0AB0
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 6.00
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

Introduction
2.2 Structure of the type designations
SCALANCE W788-x / W748-1
8Operating Instructions, 06/2016, A5E03678333-10
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:
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines
and networks. Systems, machines and components should only be connected to the
enterprise network or the internet if and to the extent necessary and with appropriate security
measures (e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For more information about industrial security, please visit
(http://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends to apply product updates as soon as available and to
always use the latest product versions. Use of product versions that are no longer supported,
and failure to apply latest updates may increase customer’s exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under (http://www.siemens.com/industrialsecurity).

SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 9
Security recommendations
3
To prevent unauthorized access, note the following security recommendations.
General
●You should make regular checks to make sure that the device meets these
recommendations and/or other security guidelines.
●Evaluate your plant as a whole in terms of security. Use a cell protection concept with
suitable products.
●When confidential zones are used, the internal and external network are disconnected, an
attacker cannot access the data from the outside.
●Operate the device only within a protected network area.
●Use additional devices with VPN functionality (e.g. SCALANCE S) to encrypt and
authenticate communication from and to the devices.
●For data transfer via a non-secure network, use an encrypted VPN tunnel (IPsec) by
using additional devices with VPN functionality (e.g. SCALANCE S).
●For operation of the device in a non-secure infrastructure no product liability will be
accepted.
●Separate connections correctly (WBM. Telnet, SSH etc.).
Physical access
●Restrict physical access to the device to qualified personnel.
●The memory card or the PLUG (C-PLUG, KEY-PLUG, security PLUG) contains sensitive
data such as certificates, keys etc. that can be read out and modified.
Software (security functions)
●Keep the software up to date. Check regularly for security updates of the product.
You will find information on this on the Internet pages "Industrial Security
(http://www.siemens.com/industrialsecurity) "
●Inform yourself regularly about security advisories and bulletins published by Siemens
ProductCERT.
●Only activate protocols that you really require to use the device.
●Use the security functions such as address translation with NAT (Network Address
Translation) or NAPT (Network Address Port Translation) to protect receiving ports from
access by third parties.
●Restrict access to the device with a firewall or rules in an access control list (ACL -
Access Control List).

Security recommendations
SCALANCE W788-x / W748-1
10 Operating Instructions, 06/2016, A5E03678333-10
●If RADIUS authentication is via remote access, make sure that the communication is
within the secured network area or is via a secure channel.
●The option of VLAN structuring provides good protection against DoS attacks and
unauthorized access. Check whether this is practical or useful in your environment.
●Enable logging functions. Use the central logging function to log changes and access
attempts centrally. Check the logging information regularly.
●Configure a Syslog server to forward all logs to a central location.
●Use WPA2/ WPA2-PSK with AES to protect the WLAN. If iPCF or iPCF-MC is used, use
the AES encryption.
Passwords
●Define rules for the use of devices and assignment of passwords.
●Regularly update passwords and keys to increase security.
●Change all default passwords for users before you operate the device.
●Only use passwords with a high password strength. Avoid weak passwords for example
password1, 123456789, abcdefgh.
●Make sure that all passwords are protected and inaccessible to unauthorized personnel.
●Do not use the same password for different users and systems or after it has expired.
Keys and certificates
This section deals with the security keys and certificates you require to set up HTTPS (
HyperText Transfer Protocol Secured Socket Layer).
●We strongly recommend that you create your own HTTPS certificates and make them
available.
There are preset certificates and keys on the device. The preset and automatically
created HTTPS certificates are self-signed.
We recommend that you use HTTPS certificates signed either by a reliable external or by
an internal certification authority. The HTTPS certificate checks the identity of the device
and controls the encrypted data exchange. You can install the HTTPS certificate via the
WBM (System > Load and Save).
●Handle user-defined private keys with great caution if you use user-defined SSH or SSL
keys.
●Use the certification authority including key revocation and management to sign the
certificates.
●Verify certificates and fingerprints on the server and client to avoid "man in the middle"
attacks.
●We recommend that you use certificates with a key length of 2048 bits.
●Change keys and certificates immediately, if there is a suspicion of compromise.

Security recommendations
SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 11
Secure/non-secure protocols
●For the DCP function, enable the "DCP read-only" mode after commissioning.
●Avoid and disable non-secure protocols, for example Telnet and TFTP. For historical
reasons, these protocols are still available, however not intended for secure applications.
Use non-secure protocols on the device with caution.
●The following protocols provide secure alternatives:
–SNMPv1/v2 → SNMPv3
Check whether use of SNMPv1 is necessary. SNMPv1 is classified as non-secure.
Use the option of preventing write access. The product provides you with suitable
setting options.
If SNMP is enabled, change the community names. If no unrestricted access is
necessary, restrict access with SNMP.
Use SNMPv3 in conjunction with passwords.
–HTTP → HTTPS
–Telnet → SSH
–SNTP → NTP
●Use secure protocols when access to the device is not prevented by physical protection
measures.
●To prevent unauthorized access to the device or network, take suitable protective
measures against non-secure protocols.
●If you require non-secure protocols and services, operate the device only within a
protected network area.
●Restrict the services and protocols available to the outside to a minimum.
Available protocols per port
The following list provides you with an overview of the open ports on this device. Keep this in
mind when configuring a firewall.
The table includes the following columns:
●
Protocol
All protocols that the device supports
●
Port number
Port number assigned to the protocol

Security recommendations
SCALANCE W788-x / W748-1
12 Operating Instructions, 06/2016, A5E03678333-10
●
Port status
–Open
The port is always open and cannot be closed.
–Open (when configured)
The port is open if it has been configured.
Note
With some
protocols the port may be open although the corresponding protocol is
disabled, for example TFTP.
●
Default status of the port
–Open
As default the port is open.
–Closed
As default the port is closed.
●
Authentication
Specifies whether or not the protocol is authenticated during access.
Protocol
Port number
Port status
Default status of
the port
Authentication
SSH
TCP/22
Open (when configured)
Open
Yes
TELNET
TCP/23
Open (when configured)
Open
Yes
HTTP
TCP/80 Open (when configured) Open Yes
HTTPS
TCP/443
Open (when configured)
Open
Yes
SNTP
NTP
UDP/123 Open (when configured) Closed No
SNMP
UDP/161
Open (when configured)
Open
Yes
PROFINET
UDP/34964,
UDP/49154,
49155
Open Open No
Syslog
UDP/514
Open (when configured)
Open
No
EtherNet/IP
TCP/44818,
UDP/2222,44818
Open (when configured) Open No
DHCP
UDP/67,68
Open (when configured)
Closed
No
RADIUS
UDP/1812,1813
Open (when configured)
Closed
No
TFTP
UDP/69
Open (when configured)
Closed
No

SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 13
Description
4
4.1
Components of the product
The following components are supplied with the product:
●SCALANCE W7x8
●Only with device variant M12 / IP65:
–2 protective caps for the M12 sockets
●Only with device variant RJ-45 / IP30:
–4-pin terminal block for the supply voltage
–4-pin terminal block for the digital input/output
●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.

Description
4.2 Description of the device
SCALANCE W788-x / W748-1
14 Operating Instructions, 06/2016, A5E03678333-10
4.2
Description of the device
W7x8x-x RJ-45 - degree of protection IP30
①
LEDs
②
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
Connector for power supply
④
Connector for Ethernet, RJ-45 type
⑤
Screw-down cover for the
- reset button and the
- PLUG compartment (not with W788C)
⑥
Connector for the digital input/output (not with W788C)
⑦
PLUG compartment (not with W788C)
⑧
Reset button
⑨
Grounding connector (thread M4) on the back of the device
Figure 4-1 Device description of the RJ-45 variant

Description
4.2 Description of the device
SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 15
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
LEDs
③
Connector for the supply voltage, type M12 (with cover)
④
Connector for Ethernet, M12 type (with cover)
⑤
Screw-down cover for the
- reset button and the
- PLUG compartment (not with W788C)
⑥
PLUG compartment (not with W788C)
⑦
Reset button (covered in the figure)
⑧
Grounding connector (thread M4) on the back of the device
Figure 4-2 Device description of the M12 variant

Description
4.3 LED display
SCALANCE W788-x / W748-1
16 Operating Instructions, 06/2016, A5E03678333-10
4.3
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 yel-
low flashing
alternately
Data transfer via the Ethernet interface.
R1 Green SCALANCE W7x8 in access point mode:
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 yel-
low flashing
alternately
Data transfer over the first WLAN interface.

Description
4.3 LED display
SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10 17
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.
Yellow
flashing 3 x
short, 1 x long
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 an access point.
R2 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 yel-
low 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
Red
An error occurred during operation with the SCALANCE W7x8.
Red
R1 or R2 flash-
ing yellow simul-
taneously
A primary user was found on all enabled channels.
P1
R1
R2
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.

Description
4.4 Reset button
SCALANCE W788-x / W748-1
18 Operating Instructions, 06/2016, A5E03678333-10
4.4
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
Operating Instructions, 06/2016, A5E03678333-10 19
Mounting
5
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 2014/34/EU (ATEX 114) or the conditions of IECEx, this
enclosure or cabinet must meet the requirements of at least IP54 in compliance with EN
60529.

Mounting
5.1 Securing the housing
SCALANCE W788-x / W748-1
20 Operating Instructions, 06/2016, A5E03678333-10
5.1
Securing the housing
Grounding connector
WARNING
Operation of the W7x8 only with connected grounding cable
To operate the SCALANCE W7x8 safely, the housing must make contact with a grounding
cable. Do not use the SCALANCE W7x8 without a grounding cable connected.
The grounding cable is fixed to the housing with a screw. On the rear of the device there is
an M4 threaded hole for this purpose.
Mount the grounding cable before you mount the device
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.