Siemens sinamics dcp - Explanations on the Function Diagrams

Operation
7.9 Communication via SINAMICS Link
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
311
7.9 Communication via SINAMICS Link
7.9.1 Basic principles of SINAMICS Link
A drive unit (with a node number) most frequently comprises a Control Unit with a number of
connected drive objects (DOs). SINAMICS Link allows data to be directly exchanged
between up to 64 CU320-2 PN or CU320-2 DP Control Units or CUD. Possible applications
are, for example:
● Torque distribution for n drives
● Setpoint cascading for n drives
● Load distribution of drives coupled through a material web
● Master/slave function for infeed units
● Couplings between SINAMICS DCP and SINAMICS S120
Requirements
The following preconditions must be fulfilled to operate SINAMICS Link:
● One CBE20 must be inserted for each Control Unit.
The installation is described in the following chapter: "Option Board: Communication
Board EtherNet CBE20 (Page 61)".
● The memory card (with the device firmware) must be inserted.
Note
Using the memory card
Information on how to correctly use the memory card
is provided in Chapter "Memory
card functions
(Page 158)".
It is especially important to note that it is not permissible to insert the card when the
device is operational.
Send and receive data
The SINAMICS Link telegram contains 32 indices (0...31) for the process data (PZD1...32).
Each PZD is precisely 1 word long (= 16 bits). Indices that are not required are automatically
filled with zeros. There is always a fixed assignment between the index and PZD: The index i
corresponds to PZD i+1.
Index 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PZD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SINAMICS Link telegram content, Part 1
Index 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
PZD
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SINAMICS Link telegram content, Part 2