A&D OP-11 Installation Manual Page 121

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07/2011 2 Operating A&D DataManagement
2.6 Transferring data
© Siemens AG 2011 All Rights Reserved
SIMATIC A&D DataManagement Client - 07/2011
2-121
Network connection
The most frequent link between computers is probably the network connection. A
network is the interconnection of computers via special network cards, which
enable a correspondingly high data transfer speed between the computers. The
data transfer rate is normally at least 10 Mbaud, as a rule it is higher. This enables
even large quantities of data to be transferred in a reasonable time. As PC based
devices are being used ever more frequently in the industrial environment, coupling
via networks for data backup is becoming ever more predominant. However, a
simple coupling between PCs and existing networks is not possible because
networks have to have specific security mechanisms.
One does not have access to an existing network, even when the essential
hardware, such as network cards and patch cables, is present and functional. The
computer and the network card must be known to the network, and the system
administrator must have assigned appropriate rights to the PC and user.
Note
Contact your system administrator regarding network accesses.
When using ADDM, the network connection can fulfill two different tasks:
In the client-server application, the network connects the backup computer
to the server. ADDM stores the backup data on the server, and fetches the
desired data from the server.
With PC based systems, such as SINUMERIK operator panels, the
network connection also takes over the task of transferring the data to the
new component for restoration after replacement of a component.
Operator panel
incl. PC
SMATC
S7300
SMATC
S7300
Server for
data storage
Operator
panel
Controls
PROFIBUS
RS-232
Ethernet
Data flow
to server
Data flows
to components
Fig. 2-4: PC based Systems
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