Siemens SINAMICS G120 Operating Instructions Manual page 207

Figure 8-6
Drive data sets are changed-over using the BICO parameter P0820 and P0821 whereby the
active drive data set is displayed in parameter r0051 (see figure below). Drive data sets can
only be changed-over in the "Ready" state and this takes approximately 50 ms.
Figure 8-7
The currently active drive data set (DDS) is displayed using parameter r0051[1]:
DDS0
DDS1
DDS2
DDS2
Figure 8-8
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
Copying from a DDS
Changing-over a DDS
selected active
DDS
r0055 r0055 r0051 [0] r0051 [1]
Bit05 Bit04
0 0 0
0 1 1
1 0 2
1 1 2
Active drive data set (DDS)
DDS
0
1
2
2
Functions
8.2 Data Sets
8-11