Descriptions of functions
10.6 Communication via SINAMICS Link
SINAMICS DCM DC Converter
520 Operating Instructions, 12/2018, A5E34763375A
Configure SINAMICS Link for two nodes and transfer the following values:
● Send data from node 1 to node 2
– r0898 CO/BO: Control word, sequence control, drive 1 (1 PZD), in the example PZD 1
– r0079 CO: Total torque setpoint (2 PZD), in the example PZD 2
– r0021 CO: Smoothed actual speed (2 PZD), in the example PZD 3
● Send data from node 2 to node 1
– r0899 CO/BO: Status word, sequence control, drive 2 (1 PZD), in the example PZD 1
● IF1 is used for SINAMICS Link.
1. For all nodes, set p0009 = 1 to change the device configuration.
2. For all CBE20 nodes, set the "SINAMICS Link" mode using p8835 = 3.
3. Limit the maximum number of nodes for all nodes with p8811 = 8. By setting p8811,
parameter p8812[1] is preassigned, and parameter p8836, if necessary, is corrected.
4. Assign the node numbers for the devices involved:
– Node 1 (≙ device 1): p8836 = 1
– Node 2 (≙ device 2): p8836 = 2
5. Make the following interface setting for all nodes:
– For IF1: p8839[0] = 2 (COMM BOARD)
– For IF2: p8839[1] = 1 (Control Unit onboard)
6. For both nodes p0009 = 0, carry out a "Copy RAM to ROM" followed by a POWER ON in
order to activate the modified firmware versions and the new settings in the CBE20.
7. Define the send data for node 1:
– Define the PZD that node 1 should send:
p2051[0] = drive1:r0898 (PZD 1)
p2061[1] = drive1:r0079 (PZD 2 + PZD 3)
p2061[3] = drive1:r0021 (PZD 4 + PZD 5)
– Place these PZD in the send buffer (p8871) of node 1:
p8871[0] = 1 (r0898)
p8871[1] = 2 (r0079 1st part)
p8871[2] = 3 (r0079 2nd part)
p8871[3] = 4 (r0021 1st part)
p8871[4] = 5 (r0021 2nd part)
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