Siemens SIMATIC ET 200AL, System Manual

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Preface
PROFIBUS with STEP 7 V13
4
Function Manual, 12/2014, A5E03775446-AC
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 documentation contains figures of the devices described. The figures 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 described in the documentation, on the
handling of the product or on the section of the documentation to which particular attention
should be paid.
Additional support
You will find information about available technical support in the appendix Service & Support
(Page 91).
The technical documentation for the individual SIMATIC products and systems is available
on the Internet ( http://www.siemens.com/simatic-tech-doku-portal ).
The online catalog and the ordering system are available on the Internet
( http://mall.industry.siemens.com ).
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, solutions, machines, equipment and/or networks. They are
important components in a holistic industrial security concept. With this in mind, Siemens’
products and solutions undergo continuous development. Siemens recommends strongly
that you regularly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable
preventive action (e.g. cell protection concept) and integrate each component into a holistic,
state-of-the-art industrial security concept. Third-party products that may be in use should
also be considered. You can find more information about industrial security on the Internet
( http://www.siemens.com/industrialsecurity ).
To stay informed about product updates as they occur, sign up for a product-specific
newsletter. You can find more information on the Internet
( http://support.automation.siemens.com ).