Sending Data - Siemens SINAMICS Series Operating Instructions Manual

Descriptions of functions
10.6 Communication via SINAMICS Link
4. If SINAMICS Link is assigned to IF1, set parameter p2037 of the drive objects to 2 (do not
freeze setpoints).
If SINAMICS Link was assigned IF2, then p8837 must be used for the setting.
5. Assign the nodes in parameter p8836 to the SINAMICS Link node number.
The first Control Unit is always assigned the number 1. Node number 0 means that for
this Control Unit SINAMICS Link has been shut down. Observe the specifications under
"Topology".
6. Check and/or correct the following parameters:
– p8811 must be identical for all nodes
– p8812[1] must be identical for all nodes
– p8812[0] may be different for local nodes
7. Set the Control Unit parameter p0009 = 0 (ready).
8. Execute a "Copy RAM to ROM".
9. Carry out a POWER ON (switch off the Control Unit and switch on again).

Sending data

Note
The parameters listed in the following description refer to the assignment of SINAMICS Link
to IF1. If you assigned SINAMICS Link to IF2, then you find the corresponding parameters in
the "Table 10-41 Corresponding parameters (Page 515)".
In this example, the first "Control Unit 1" node has two drive objects: "Drive 1" and "Drive 2".
Proceed as follows to send data:
1. If SINAMICS Link is assigned to IF1, then for each drive object, in its associated
parameter p2051[0...31], you define which data (PZDs) should be sent.
If SINAMICS Link was assigned IF2, then p8851 must be used for the setting. The data is
simultaneously reserved in the send slot of the p8871[0...31].
2. Enter the double words in p2061[x].
Double word data is simultaneously written to p8861[0...31].
3. For each drive object, allocate the send parameters in p8871[0...31] to a send slot of its
own node.
516
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A