Siemens SIMATIC ET 200AL System Manual page 591

Preface
Conventions
STEP 7: We refer to "STEP 7" in this documentation as a synonym for the configuration and
programming software "STEP 7 as of V12 (TIA Portal)" and subsequent versions.
This document contains illustrations of the described devices. The illustrations may differ
slightly from the device supplied.
You should also pay particular attention to notes such as the one shown below:
Note
A note contains important information on the product, on the handling of the product or on
the section of the documentation to which particular attention should be paid.
See also
SIMATIC Portal (http://www.siemens.com/simatic-tech-doku-portal)
Catalog (http://mall.automation.siemens.com)
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).
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Function Manual, 09/2016, A5E03735838-AD
Diagnostics