Siemens Simantic Net NCM for Industrial Ethernet S7 - Manual (Page 37)

Communication via Ethernet CPs in S7 Stations
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SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
to bring connections with identical connection names together.
The topic of multiprojects is dealt with in detail in the STEP 7 basic help.
Here, you will find information on the following topics:
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Requirements for interproject functions
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How to create multiprojects
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How to create a new project in a multiproject
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How to separate a project from a multiproject
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How to include projects in the multiproject
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How to synchronize projects in a multiproject
S Moving stations within a multiproject (when a station is moved from one project
of a multiproject to another project of the same multiproject (for example using
drag & drop), the interproject connections are retained).
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Possible problems in distributed projects and tips on how to avoid them
Possibilities for stations outside the current project
The addition of the multiproject functionality means that the following situations can
arise:
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Connection to a partner in an unknown project
The new multiproject functionality allows you to create a connection to a partner
in an unknown project. In this case, you can specify a connection name as a
reference in the properties dialog of the connection. When the projects are
merged, STEP 7 then supports you with automatic synchronization of the
separately configured connections.
The connection remains unspecified until the projects have been merged and
the connections synchronized. Only following this synchronization can the
configuration data be downloaded to the local station without inconsistencies.
You should therefore use this variant when you know that the projects will be
merged in a multiproject.
S Specified connections with representative objects
To allow you to create specified connections to stations in a different project (for
example production 2) or that are not managed with STEP 7, you can configure
these stations as other stations(example in the project production 1).
This makes it possible to create consistent, fully specified configuration data
and to download it to the local station.
It is also possible to create specified connections between these stations in
different, independent projects. The stations can then communicate
immediately over the created connections after the configuration data have
been downloaded.
Use this variant when you want to operate projects separately due to the
complexity.