Expert Functions
5.2 Extending a PROFIdrive message frame
Connection of the SINAMICS S120 to the Technology CPU
Product Information, 09/2011, A5E00480378-04
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5.2.4 Extending an existing PROFIBUS message frame for the drive
Introduction
The previous section showed you how to extend the PROFIdrive communication between
SINAMICS S120 and the Technology CPU with complete message frames to use additional
components.
In addition, the message frames for the previously configured components
(drives, technology modules, etc.) can be extended. This allows, for example,
drive parameters in the PROFIBUS message frame to be interconnected to permit their
value to be fetched cyclically by other PROFIBUS nodes (e.g. Technology CPU).
Procedure
To extend the standard message frame 105 for drive_1 to include an actual value, follow
these steps:
1. In S7T Config, open the message frame configuration of SINAMICS S120.
2. Click "Align message frame with HW Config: Set up addresses".
Check that the Siemens message frame 105 is entered for the "Drive_1" entry.
Note
After the alignment, you will have to close the "Message frame configuration" dialog.
Otherwise subsequent changes in the hardware configuration will not be considered
and may be discarded.
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