Setpoint Assignment In The Subscriber - Siemens SINAMICS S120 Function Manual

10.2.4.2

Setpoint assignment in the subscriber

Setpoints
The following statements can be made about the setpoint:
● Number of setpoint
● Contents of the setpoints
● Operation as "standard" slave
● Operation as subscriber
Example, setpoint assignment
The slave in the illustration receives its process data as follows:
● STW1 and STW2 from the master
● NSOLL_B and MOMRED as tap from a publisher
Figure 10-30 Example, setpoint assignment
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
When bus communications is being established, the master signals the slave the number
of setpoints (process data) to be transferred using the configuring telegram (ChkCfg).
The structure and contents of the data for the "SINAMICS slave" using the local process
data configuring (p0922).
The drive (slave) only receives its setpoints and output data from the master.
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.
Communication PROFIBUS DP/PROFINET IO
10.2 Communication via PROFIBUS DP
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