Introduction   
1.1 On the Operating Instructions 
  SCALANCE X-100 
6  Operating Instructions, 12/2016, A2B00060666-08 
These Operating Instructions are intended for persons who commission networks with the IE 
switches of the SCALANCE X-100 product line. 
Explanations of many of the specialist terms used in this documentation can be found in the 
SIMATIC NET glossary. 
You will find the SIMATIC NET glossary on the Internet at the following address: 
50305045 (http://support.automation.siemens.com/WW/view/en/50305045
) 
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  
https://support.industry.siemens.com/cs/ww/en/ps/15247/pm 
(https://support.industry.siemens.com/cs/ww/en/ps/15247/pm
).