Siemens SINAMICS G130 Operating Instructions Manual page 274

Operation
6.9 Communication via SINAMICS Link
Features
● The CBE20 can be assigned to IF1 or IF2 when SINAMICS Link is used.
The interface, assigned to the CBE20, must be switched into synchronous operation.
You must also make the following parameter settings in order to assign, e.g. IF1 to
SINAMICS Link:
– For IF1: p8839[0] = 2 (COMM BOARD)
– For IF2: p8839[1] = 1 (Control Unit onboard)
The following data is applicable for the case (IF1 ≙ SINAMICS Link):
● The number of the respective node must be entered manually in parameter p8836. Each
node must be assigned a different number.
Enter the numbers in ascending order starting with "1".
● If p8836 is set to 0, the nodes and the complete following line is shut down for SINAMICS
Link.
● Gaps in the numbering are not permitted, as then SINAMICS Link would not function.
● 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.
● For non-synchronized operation (p8812[0] = 0), a maximum of 64 nodes are possible
(p8811 = 64).
● For synchronized operation (p8812[0] = 1), a maximum of 16 nodes (p8811 = 16) with
500 µs bus cycle or up to 64 nodes (p8811 = 64) with 1000 µs or 2000 µs are possible
● The ports of the CBE20 must be interconnected strictly in accordance with the above
diagram. You must always connect port 2 (P2) of node n with port 1 (P1) of node n + 1.
● In the "SINAMICS Link" mode, ports 3 and 4 of the CBE20 can only be used in
conjunction with the STARTER commissioning tool.
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Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A