Communication Via Sinamics Link; Basic Principles Of Sinamics Link - Siemens SINAMICS Series Operating Instructions Manual
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Also See for SINAMICS Series:
- Equipment manual (350 pages) ,
- Function manual (102 pages) ,
- Operating instructions manual (100 pages)
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Descriptions of functions
10.6 Communication via SINAMICS Link
10.6
Communication via SINAMICS Link
10.6.1
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. All of the participating
Control Units must be equipped with a CBE20 in order that SINAMICS Link functions.
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
● Links between SINAMICS DC MASTER and SINAMICS S120
Requirements
The following preconditions must be fulfilled to operate SINAMICS Link:
● One CBE20 must be inserted for each drive object.
● The following applies for the CUD:
- An Advanced CUD must be inserted.
- The memory card (the device firmware) must be inserted.
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
PZD
1
2
SINAMICS Link telegram content, Part 1
Index
16
17
PZD
17
18
SINAMICS Link telegram content, Part 2
Each transfer cycle, every SINAMICS Link node can send 1 telegram with 32 PZD. Each
node receives all of the telegrams that are sent. For each transfer cycle clock, a node can
select and process up to 32 PZD from all telegrams that have been received. Single words
and double words can be sent and received. You must write double words in two
consecutive PZDs.
512
2
3
4
5
3
4
5
6
18
19
20
21
19
20
21
22
6
7
8
9
7
8
9
10
22
23
24
25
23
24
25
26
Operating Instructions, 12/2018, A5E34763375A
10
11
12
13
11
12
13
14
26
27
28
29
27
28
29
30
SINAMICS DCM DC Converter
14
15
15
16
30
31
31
32
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