Siemens SINAMICS Series Operating Instructions Manual page 670

Descriptions of functions
10.37 Drive Control Chart (DCC)
Sample calculation:
The SINAMICS DM is equipped with one AOP30 and two TM31 modules. The DCC diagram
is to be computed on the DO DC_CTRL.
→ 600 - 200 - 2×150 = 100 DCC blocks can be computed on the DO DC_CTRL.
Notes:
● If there is insufficient memory on the CUD for the configuration of the desired DCC
diagram, the scope of the blocks needs to be reduced or the SINAMICS DCM needs to
be equipped with a 2nd CUD inserted in the right-hand slot.
● The computation rules stated previously also apply to the CUD on the right-hand slot.
● In most cases, the CPU time load of the CUD becomes the limiting factor when designing
the DCC application and not the memory load.
10.37.4 Backing up the DCC diagrams
A DCC project comprises two parts.
1. Information about the type, time slices and interconnection of the DCB blocks
2. Information about the layout and graphics in the DCC charts
When downloading the DCC chart to the drive (download to the target system), only the
information about the type, time slices and interconnection of the DCB blocks (Point 1) are
downloaded to the drive.
The DCC charts can also be saved in the target device by selecting the option "Store
additional data on the target device". This is recommended if the DCC charts will also be
opened by another PG.
A further prompt appears after selecting the "Download to Target System" window. The DCC
charts are also saved when both checkboxes are activated.
The following prompt appears when selecting "Load to PG" later:
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SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A