Siemens SCALANCE W788C-2 User manual

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SIMATIC NET
Industrial Wireless LAN
SCALANCE W788C-2
Operating Instructions
01/2017
A5E03692120
-11
Introduction
1
Security recommendations
2
Description
3
Mounting
4
Connection
5
Technical data
6
Dimension drawings
7
Approvals
8

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03692120-11
Ⓟ
01/2017 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.
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 W788C-2
Operating Instructions, 01/2017, A5E03692120-11 3
Table of contents
1 Introduction............................................................................................................................................. 5
1.1 Information on the Operating Instructions ................................................................................5
2 Security recommendations...................................................................................................................... 7
3 Description............................................................................................................................................ 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 Installation...............................................................................................................................15
3.4.2 Flexible connecting cables and antennas...............................................................................18
3.4.2.1 Flexible connecting cables......................................................................................................18
3.4.2.2 Antennas .................................................................................................................................19
3.5 LED display.............................................................................................................................22
4 Mounting............................................................................................................................................... 23
4.1 Securing the housing ..............................................................................................................24
4.2 Wall mounting .........................................................................................................................25
4.3 Installing on the S7-300 standard rail .....................................................................................26
4.4 Installing on a DIN rail.............................................................................................................27
5 Connection ........................................................................................................................................... 29
5.1 Safety when connecting up.....................................................................................................29
5.2 Lightning protection, power supply and grounding .................................................................30
5.3 Power supply and Ethernet.....................................................................................................33
5.4 Antenna connectors ................................................................................................................35
6 Technical data ...................................................................................................................................... 39
6.1 Technical specifications of the SCALANCE W788C-2)..........................................................39
7 Dimension drawings.............................................................................................................................. 43
8 Approvals.............................................................................................................................................. 45
Index..................................................................................................................................................... 47

Table of contents
SCALANCE W788C-2
4Operating Instructions, 01/2017, A5E03692120-11

SCALANCE W788C-2
Operating Instructions, 01/2017, A5E03692120-11 5
Introduction
1
1.1
Information on the Operating Instructions
Validity of the Operating Instructions
These operating instructions cover the following products:
Product
Article number
SCALANCE W788C-2 RJ-45
6GK5 788-2FC00-1AA0
SCALANCE W788C-2 M12
6GK5 788-2GD00-1AA0
SCALANCE W788C-2 M12 EEC 6GK5788-2GD00-1TA0
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 W7x8C with firmware as of version 8.31
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 introductory information about configuration in the document "Getting Started
SCALANCE WLC711" on the accompanying SIMATIC NET IWLAN CD under the file name:
GS_SCALANCE-WLC711_76 pdf
Note
Detection of the W788C-2 M12 EEC devices
When the W788C
-2 M12 EEC devices are detected by the configuration software of the
WLC 711, they are shown as W788C
-2 M12.
Note
Make sure that you read the explanations and instructions in the README.txt file

Introduction
1.1 Information on the Operating Instructions
SCALANCE W788C-2
6Operating Instructions, 01/2017, A5E03692120-11
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 (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 (http://www.siemens.com/industrialsecurity)
Trademarks
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

SCALANCE W788C-2
Operating Instructions, 01/2017, A5E03692120-11 7
Security recommendations
2
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 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.).
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 (http://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.

Security recommendations
SCALANCE W788C-2
8Operating Instructions, 01/2017, A5E03692120-11
●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.
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.

Security recommendations
SCALANCE W788C-2
Operating Instructions, 01/2017, A5E03692120-11 9
●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.

Security recommendations
SCALANCE W788C-2
10 Operating Instructions, 01/2017, A5E03692120-11
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:
●
Protocol
All protocols that the device supports
●
Port number
Port number assigned to the protocol
●
Port status
–Open
The port is always open and cannot be closed.
–Open (when configured)
The port is open if it has been configured.
●
Factory setting
–Open
The factory setting of the port is "Open".
–Closed
The factory setting of the port is "Closed".
●
Authentication
Specifies whether or not the protocol is authenticated.
Protocol
Port number
Port status
Factory setting
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/2222,4481
8
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