A&D OP-11 Manual de instalación Pagina 122

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2 Operating A&D DataManagement 07/2011
2.6 Transferring data
© Siemens AG 2011 All Rights Reserved
2-122 SIMATIC A&D DataManagement Client - 07/2011
With the ADDM client-server application, several cable connections are often used
simultaneously on the backup computer. The S7 controls can be connected online
via an MPI or PROFIBUS, and the same time the backup computer is connected to
the network.
USB connection
The Universal Serial Bus is a Microsoft specification, which enables peripheral
devices to be connected to a PC in a simple manner. The devices can be plugged
in and unplugged during operation. Two computers can also be linked to one
another by special cables via the USB. This enables data transfer rates of 4
Mbaud. This connection replaces the Interlink connection, which was used in the
past. The USB uses the same network protocols as the network connection. The
same release mechanisms also apply. The USB does not function under WIN NT.
PC card slot
Various devices in the industrial environment offer data backup on PC cards. This
means that the device data can be backed up on a PC card when the PC card is
plugged into the device. . This is available as standard with SIMATIC OPs, for
example. The user plugs the PC card into the slot, and can backup the data onto
the PC card by operator action on the OP. The backed up data can now be read in
again onto a new device.
Fig. 2-5: Systems with PC CARD
It is advantageous to back up the data in ADDM if there are a large number of
devices in a production facility. If the data is stored on the PC card as a file system,
ADDM can read this data via the path component and back it up in the data
structure in packed form.
The path component is very flexible. This gives the user the option of backing up
every file system, provided that it is visible under the operating system used.
PC CARD with data
Operator panel with
PC CARD slot
Backup computer with
PC CARD slot
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