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Industrial Wireless LAN
SCALANCE W788-x / W748-1
Description of the device
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Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
09/2017 Subject to change
Copyright © Siemens AG 2011 - 2017.
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.
indicates that death or severe personal injury will result if proper precautions are not taken.
indicates that death or severe personal injury may result if proper precautions are not taken.
indicates that minor personal injury can result if proper precautions are not taken.
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.
The product/system described in this documentation may be operated only by
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
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.
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.
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.
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SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
3
1 Introduction ............................................................................................................................................. 5
1.1 Information on the Operating Instructions ................................................................................ 5
2 Security recommendations ...................................................................................................................... 7
3 Description of the device ....................................................................................................................... 11
3.1 Description of the device ........................................................................................................ 11
3.2 Structure of the type designations .......................................................................................... 13
3.3 Components of the product .................................................................................................... 14
3.4 Accessories ............................................................................................................................. 15
3.4.1 Flexible connecting cables and antennas ............................................................................... 18
3.4.1.1 Flexible connecting cables ...................................................................................................... 18
3.4.1.2 Antennas ................................................................................................................................. 19
3.5 LED display ............................................................................................................................. 22
3.6 Reset button ............................................................................................................................ 25
4 Mounting ............................................................................................................................................... 27
4.1 Securing the housing .............................................................................................................. 28
4.2 Wall mounting ......................................................................................................................... 29
4.3 Installing on the S7-300 standard rail ..................................................................................... 30
4.4 Installing on the S7-1500 standard rail ................................................................................... 31
4.5 Installing on a DIN rail ............................................................................................................. 32
5 Connecting up ....................................................................................................................................... 35
5.1 Safety when connecting up ..................................................................................................... 35
5.2 Lightning protection, power supply and grounding ................................................................. 36
5.3 Power supply and Ethernet ..................................................................................................... 39
5.4 Antenna connectors ................................................................................................................ 41
5.5 Digital input/output .................................................................................................................. 45
5.6 Replacing the PLUG (C-PLUG or KEY-PLUG) ...................................................................... 46
6 Upkeep and maintenance ..................................................................................................................... 49
6.1 Device configuration with PRESET-PLUG ............................................................................. 49
6.2 Restoring the factory settings ................................................................................................. 52
6.3 Firmware update via WBM or CLI not possible ...................................................................... 54
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Table of contents
SCALANCE W788-x / W748-1
4 Operating Instructions, 09/2017, A5E03678333-12
7 Technical specifications ........................................................................................................................ 57
7.1 Technical specifications of the SCALANCE W7x8-1) ............................................................ 57
7.2 Technical specifications of the SCALANCE W7x8-2) ............................................................ 60
8 Dimension drawings .............................................................................................................................. 63
9 Certification ........................................................................................................................................... 65
Index .................................................................................................................................................... 67
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SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
5
Information on the Operating Instructions
Validity of the Operating Instructions
These operating instructions cover the following products:
Article number
Article number
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 6.2
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-W780-W740-WBM_0.pdf
PH_SCALANCE-W780-W740-CLI_0.pdf
Note
Make sure that you read the explanations and instructions in the README.txt file
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Introduction
1.1 Information on the Operating Instructions
SCALANCE W788-x / W748-1
6 Operating Instructions, 09/2017, A5E03678333-12
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 constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be
connected to an enterprise network or the internet if and to the extent such a connection is
necessary and only when appropriate security measures (e.g. firewalls and/or network
segmentation) are in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For additional information on industrial security measures that may be
implemented, please visit
Link (https://www.siemens.com/industrialsecurity
)
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends that product updates are applied as soon as they are
available and that the latest product versions are used. Use of product versions that are no
longer supported, and failure to apply the 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
Link (https://www.siemens.com/industrialsecurity
).
The following and possibly other names not identified by the registered trademark sign ® are
registered trademarks of Siemens AG:
SIMATIC NET, SCALANCE, C-PLUG, RCoax
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SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
7
To prevent unauthorized access, note the following security recommendations.
● 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 (
https://www.industry.siemens.com/topics/global/en/industrial-
security/pages/default.aspx).
● When the internal and external network are disconnected, an attacker cannot access
internal data from the outside. Therefore operate the device only within a protected
network area.
● For communication via non-secure networks use additional devices with VPN functionality
to encrypt and authenticate the communication.
● Terminate management connections correctly (WBM. Telnet, SSH etc.).
● 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
(https://www.siemens.com/industrialsecurity
)"
● Inform yourself regularly about security advisories and bulletins published by Siemens
ProductCERT (https://www.siemens.com/cert/en/cert-security-advisories.htm
).
● 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).
● 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.
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Security recommendations
SCALANCE W788-x / W748-1
8 Operating Instructions, 09/2017, A5E03678333-12
● 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.
● 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.
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.
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Security recommendations
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
9
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.
The table includes the following columns:
●
All protocols that the device supports
●
Port number assigned to the protocol
●
– Open
The port is always open and cannot be closed.
– Open (when configured)
The port is open if it has been configured.
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Security recommendations
SCALANCE W788-x / W748-1
10 Operating Instructions, 09/2017, A5E03678333-12
●
– Open
The factory setting of the port is "Open".
– Closed
The factory setting of the port is "Closed".
●
Specifies whether or not the protocol is authenticated.
Factory setting
of the port
TCP/23 Open (when configured) Open Yes
TCP/443 Open (when configured) Open Yes
UDP/123 Open (when configured) Closed No
Open (when configured) Open No
Open (when configured) Closed No
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SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
11
Description of the device
W7x8x-x RJ-45 - degree of protection IP30
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.
Connector for power supply
Connector for Ethernet, RJ-45 type
Screw-down cover for the
- reset button and the
- PLUG compartment (not with W788C)
Connector for the digital input/output (not with W788C)
PLUG compartment (not with W788C)
Grounding connector (thread M4) on the back of the device
Figure 3-1 Device description of the RJ-45 variant
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Description of the device
3.1 Description of the device
SCALANCE W788-x / W748-1
12 Operating Instructions, 09/2017, A5E03678333-12
W7x8x-x M12 - degree of protection IP65
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.
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)
PLUG compartment (not with W788C)
Reset button (covered in the figure)
Grounding connector (thread M4) on the back of the device
Figure 3-2 Device description of the M12 variant
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Description of the device
3.2 Structure of the type designations
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
13
Structure of the type designations
The type designation of a SCALANCE W7x8 is made up of several parts that have the
following meaning:
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Description of the device
3.3 Components of the product
SCALANCE W788-x / W748-1
14 Operating Instructions, 09/2017, A5E03678333-12
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
Note
The mounting set with the holding plate does not ship with t
he device, see Accessories
Please check that the consignment you have received is complete. If the consignment is
incomplete, contact your supplier or your local Siemens office.
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
15
Technical data subject to change.
You will find further information on the accessories program in the Industry Mall.
(https://mall.industry.siemens.com
)
C-PLUG Configuration PLUG,
Exchangeable storage medium (32 MB) for the configura-
6GK1900-0AB00
KEY-PLUG
features
Enabling of iFeatures and exchangeable storage medium
for storage of configuration data
KEY-PLUG W780 iFeatures AP
KEY-PLUG W740 iFeatures Client 6GK5907-4PA00
KEY-PLUG
W700 Security
W700 Security
Enabling of “Inter AP Blocking” and exchangeable storage
medium for storage of configuration data
Mounting set Mounting set can only be used in conjunction with
SCALANCE W-786; consisting of holding plate for
wall mounting, for mounting on an S7-300 rail and a
DIN rail and for mast mounting with additional hose
Plug-in connector Industrial Ethernet
For the M12 variants the following plug-in connector is required:
IE FC M12
PLUG PRO
4x2
Industrial Ethernet FastConnect M12
Plug PRO 4x 2 M12 Plug-in connector with rugged metal housing and FC
connector technology, with axial
cable outlet (X coded)
6GK1901-0DB30-6AA0
8 connectors per
package
6GK1901-0DB30-6AA8
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
16 Operating Instructions, 09/2017, A5E03678333-12
For the RJ-45 variants the following plug-in connector is required:
IE FC RJ-45
PLUG 180 4x2
Industrial Ethernet FastConnect RJ45
Plug 180 4x 2, RJ45 plug-in connector; CAT6A; (10/100/1000/10000
Mbps) with rugged metal housing and
FC connector technology, for IE FC
Cable 4x 2 (24 AWG); 180° cable
6GK1901-1BB12-2AA0
10 connectors per
package
6GK1901-1BB12-2AB0
50 connectors per
package
6GK1901-1BB12-2AE0
Cables Industrial Ethernet
IE FC TP cable 4 x 2 Industrial Ethernet FastConnect TP standard
cable GP 4x 2, TP installation cable CAT6A for
connection to IE FC RJ45 Plug 4x 2, 24 AWG
* Available in different lengths
IE M12 PANEL
FEEDTHROUGH 4X2
Cabinet feedthrough for conversion from M12
connector technology (X-coded, IP65/67) to RJ45 connector technology (X-coded, IP20)
6GK1901-0DM40-2AA5
N-Connect/N-Connect
female/female Panel
Panel feedthrough for wall thicknesses up to a
maximum of 4.5 mm, two N-Connect female
6GK5798-2PP00-2AA6
N-Connect/SMAConnect female/female Panel
Panel feedthrough for wall thicknesses up to a
maximum of 5.5 mm, two N-Connect/SMA female
connectors.
6GK5798-0PT00-2AA6
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
17
Energy cable
2 x 0.75
Energy cable for connection of signaling contact and
power supply 24 VDC, stranded wire 2 x 0.75 mm
2
,
capable of trailing, not assembled
6XV1812-8A
Robust Energy
Cable 4 x 0.75
Energy cable for connection of power supply 24 VDC,
4-wire stranded 4 x 0.75 mm
2
, robust, flexible, not
assembled
6XV1801-2A
M12 PLUG-IN
CABLE
Flexible plug-in power cable to connect the power
supply 24 VDC, 4-wire, preassembled with a 4-pin M12
plug and an M12 socket (A-coded)
* Available in different lengths
IE POWER M12
CABLE CONNECTOR
PRO
Socket for the 24 VDC power supply. 4-pin, Acoded
LP798-1N Lighting protector with N/N female/female connector with
6GK5798-2LP00-2AA6
LP798-2N Lighting protector with N/N female/female connector with
TI795-1N Electrical connection
6GK5795-1TN00-1AA0
TI795-1R Electrical connection
RSMA-Connect, male
6GK5795-1TR10-0AA6
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
18 Operating Instructions, 09/2017, A5E03678333-12
Flexible connecting cables and antennas
3.4.1.1
Flexible connecting cables
Flexible connecting cable N-Connect/R-SMA
Flexible connecting cable for connecting an antenna to a SCALANCE W700 with R-SMA
connectors, preassembled with a connector N-male and R-SMA male
For railway applications, the following connecting cable are available:
Flexible connecting cable N-Connect/N-Connect
Flexible connecting cable for connecting an antenna to a SCALANCE W700 with N-Connect
connectors.
Preassembled with two N male connectors:
For railway applications, the following connecting cable are available:
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
19
Flexible connecting cable IWLAN QMA/N-Connect male/female
Adapter cable for connecting a MIMO antenna with QMA connectors with the flexible
connecting cables. Preassembled with two connectors QMA male and N-Connect female.
pack of 3
For railway applications, the following connecting cable is available Note: Scope of delivery:
Pack of 1
Note
When you select an antenna, keep in mind the national approvals for your device.
will find more information in the following Link (https://www.siemens.com/wireless-
The SCALANCE W786-2IA RJ-45 uses internal omni antennas (3/4 dBi at 2.4 GHz or 5
GHz).
ANT792-4DN RCoax helical antenna, circular polariza-
tion, 4 dBi, 2.4 GHz, N-Connect female.
6GK5792-4DN00-0AA6
ANT792-6MN Omni antenna, mast/wall mounting, 6 dBi
2.4 GHz, N-Connect female
6GK5792-6MN00-0AA6
ANT792-8DN Directional antenna, mast/wall mounting,
14 dBi 2.4 GHz, N-Connect female
6GK5792-8DN00-0AA6
ANT793-4MN RCoax λ5/8 antenna with vertical polari-
zation, 6 dBi, 5 GHz, N-Connect female.
6GK5793-4MN00-0AA6
ANT793-6DG Wide angle antenna, mast/wall mount-
ing, 9 dBi 5 GHz, 2 x N-Connect female
6GK5793-6DG00-0AA0
ANT793-6DT Wide angle antenna (MIMO), mast/wall
mounting, 8 dBi 5 GHz, 3 x QMA con-
6GK5793-6DT00-0AA0
ANT793-6MN Omni antenna, mast/wall mounting, 5 dBi
6GK5793-6MN00-0AA6
ANT793-8DJ Directional antenna, mast/wall mounting,
18 dBi 5 GHz, 2 x N-Connect female
6GK5793-8DJ00-0AA0
ANT793-8DK Directional antenna, mast/wall mounting,
23 dBi 5 GHz, 2 x N-Connect female
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
20 Operating Instructions, 09/2017, A5E03678333-12
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
6GK5795-4MA00-0AA3
ANT795-4MC Omnidirectional antenna, 3/5 dBi, 2.4
GHz and 5 GHz, IP65, N-Connect male
for direct installation on the device,
6GK5795-4MC00-0AA3
ANT795-4MD Omnidirectional antenna, 3/5 dBi, 2.4
GHz and 5 GHz, IP65, N-Connect male
for direct installation on the device, 90°
6GK5795-4MD00-0AA3
ANT795-6DC Wide angle antenna, mast/wall mount-
ing, 9 dBi 2.4 GHz and 5 GHz, N-
6GK5795-6DC00-0AA0
ANT795-4MB Omnidirectional antenna, 2/3 dBi 2.4
GHz and 5 GHz, IP30, R-SMA connector
female for direct mounting on the device,
connector angle adjustable 0° to 90°.
6GK5795-4MB00-0Ax0
ANT795-6MN Omni antenna, mounted on roof/vehicle,
6/8 dBi 2.4 GHz and 5 GHz, N-Connect
6GK5795-6MN10-0AA6
ANT795-6MT Omni antenna (MIMO), mounted on
roof/vehicle/ceiling, 5/7 dBi 2.4 GHz and
5 GHz, 3 x QMA connector female
6GK5795-6MT00-0AA0
ANT793-8DL Directional antenna vertical-horizontal
polarized, 5 GHz, 14dBi, IP66, 2xN-
6GK5793-8DL00-0AA0
ANT793-8DP Directional antenna, mast/wall mounting,
13 / 13.5 dBi 4.9 GHz and 5 GHz, N-
6GK5793-8DP00-0AA0
ANT795-4MX Omnidirectional antenna, 2/2,5 dBi, 2.4
GHz and 5 GHz, IP69K, N-Connect male
6GK5795-4MX00-0AA0
ANT795-6MP Omnidirectional antenna, 5/7 dBi, 2.4
GHz and 5 GHz, IP65/67, N-Connect
6GK5795-6MP00-0AA0
ANT896-6MM Omnidirectional antenna for mobile wire-
less, WLAN and GPS, WLAN: 6/7 dBi,
2.4 GHz and 5 GHz, IP68, IP69 K, QMA-
6GK5896-6MM00-0AA0
IWLAN RCoax Cable
Omni antenna, 0 dBi 2.400 - 2.485 GHz,
6XV1875-2A
IWLAN RCoax Cable 5
GHz PE 1/2"
Omni antenna, 0 dBi 5.150 – 5.875 GHz,
N-Connect female.
6XV1875-2D
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Description of the device
3.4 Accessories
SCALANCE W788-x / W748-1
Operating Instructions, 09/2017, A5E03678333-12
21
The ANT795-4MA antenna has degree of protection IP30 and is therefore only suitable for
dry environments.
Note
ANT793-8DJ
The antenna ANT793
-8DJ may only be used with the flexible connecting cable 6XV1875-
5CH50 (5 m length) or 6XV1875
-5CN10 (10 m length). Other flexible connecting cables are
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 flexible connecting cable 6XV1875-
5CN10 (10 m length). Other flexible connecting cables are not permitted.
Only one antenna per device can be used (connected to R1A1, R1A2 or R2A