Topology - Siemens SINAMICS S120 Function Manual

11.4.2

Topology

Only a line topology with the following structure is permitted for SINAMICS Link. You must
manually set the parameters in the expert lists of the Control Units and drive objects. To do
this, use the STARTER commissioning tool.
Figure 11-55 Maximum topology
Features
● The CBE20 can also be assigned to IF1 or IF2 when SINAMICS Link is used.
● The number of the respective node must be entered manually in parameter p8836. Each
● If p8836 is set to 0, the nodes and the complete following line is shut down for SINAMICS
● Gaps in the numbering are not permitted.
● The associated IP addresses are assigned automatically, but are however not visible.
● The node with the number 1 is automatically the sync master of the communication link.
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
IF2 should be used for SINAMICS Link because IF1 supports PROFIdrive conformity. IF2
must therefore be switched to synchronous operation.
The following parameter settings must also be made:
– For IF1: p8839[0] = 2 (COMM BOARD)
– For IF2: p8839[1] = 1 (Control Unit onboard)
node must be assigned a different number. Enter the numbers in ascending order starting
with 1.
Link.
11.4 Communication via SINAMICS Link
Communication
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