Topology - Siemens SINAMICS S120 Series Function Manual

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):
● 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
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Number of nodes/
project no.
64
16
12
8
Maximum topology
Communication via SINAMICS Link
PZD count
16
16
24
32
8.2 Topology
Bus cycle (ms)
1 or 2
0.5
0.5
0.5
205