Siemens SINAMICS DCM Manual page 442

Requirements
The following requirements should be observed for the "direct data exchange" function:
● STARTER as of Version 4.2
● Configuration:
– Drive ES Basic, Drive ES SIMATIC or Drive ES PCS7 as of Version 5.3 SP3
– Alternatively using a GSD file
● Firmware as of Version 1.2
● The maximum number of process data per drive can be identified from the value in r2050
– minus the resources that have already been used
● A maximum of 16 links to publishers
Applications
For example, the following applications can be implemented using the "direct data
exchange" function:
● Axis couplings
● Specifying binector connections from another slave
10.4.4.1 Setpoint assignment in the subscriber
Information about setpoints
● Number of setpoint
When bus communication is being established, the master signals the slave the number
of setpoints (process data) to be transferred using the configuring telegram (ChkCfg).
● Contents of the setpoints
The structure and contents of the data are determined using the local process data
configuration for the "SINAMICS slave".
● Operation as "standard" slave
The drive unit (slave) only receives its setpoints as output data from the master.
● Operation as subscriber
When a slave is operated as a subscriber, some of the setpoints are defined by one or
more publishers rather than by the master.
The slave is informed of the assignment via the parameterization and configuration
telegram when bus communication is being established.
SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
ac.maher.co.ir
Descriptions of functions
10.4 Communication via PROFIBUS DP
443