Siemens ET 200 SP Handbuch Seite 191

Technologiemodul TM Pulse 2x24V (6ES7138-6DB00-0BB1)
Gerätehandbuch, 09/2015, A5E35061195-AA
Some devices are designed to deny users access to install or run modified versions of
the software inside them, although the manufacturer can do so. This is fundamentally
incompatible with the aim of protecting users' freedom to change the software. The sys-
tematic pattern of such abuse occurs in the area of products for individuals to use, which
is precisely where it is most unacceptable. Therefore, we have designed this version of
the GPL to prohibit the practice for those products. If such problems arise substantially in
other domains, we stand ready to extend this provision to those domains in future ver-
sions of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents. States should not
allow patents to restrict development and use of software on general-purpose comput-
ers, but in those that do, we wish to avoid the special danger that patents applied to a
free program could make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License refers to version 3 of the GNU General Public License.
"Copyright also means copyright-like laws that apply to other kinds of works, such as
semiconductor masks.
"The Program refers to any copyrightable work licensed under this License. Each licen-
see is addressed as "you". "Licensees" and "recipients" may be individuals or organiza-
tions.
To "modify" a work means to copy from or adapt all or part of the work in a fashion re-
quiring copyright permission, other than the making of an exact copy. The resulting work
is called a "modified version" of the earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based on the Pro-
gram.
To "propagate" a work means to do anything with it that, without permission, would make
you directly or secondarily liable for infringement under applicable copyright law, except
executing it on a computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the public, and in some
countries other activities as well.
To "convey" a work means any kind of propagation that enables other parties to make or
receive copies. Mere interaction with a user through a computer network, with no trans-
fer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices" to the extent that it
includes a convenient and prominently visible feature that (1) displays an appropriate
copyright notice, and (2) tells the user that there is no warranty for the work (except to
the extent that warranties are provided),
Open Source Software
191