Siemens SINAMICS S120 Series

Communication via SINAMICS Link
8.2 Topology
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
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Bus cycle and number of nodes
You can operate the bus cycle of the SINAMICS Link with the current controller cycle, either
synchronized or non-synchronized.
● You set synchronized operation with p8812[0] = 1. A maximum of 64 nodes can then
communicate with one another via SINAMICS Link. To do so, set the maximum number
of nodes with p8811 (project selection):
Number of nodes/
project no.
PZD count
Bus cycle (ms)
64
16
1 or 2
16 16 0.5
12
24
0.5
8
32
0.5
● A maximum of 64 participants can communicate with one another via SINAMICS Link.
If you change at least one of the parameters p8811, p8812, p8835 or p8836, then you must
carry out a POWER ON to accept the settings.
8.2 Topology
Only a line topology with the following structure is permitted for SINAMICS Link. You must
manually set the parameters in the parameter views of the Control Units and drive objects.
To do this, use the Startdrive commissioning tool.
Figure 8-1 Maximum topology