Setpoint Assignment In The Subscriber - Siemens SINAMICS DCM Operating Instructions Manual

Descriptions of functions
10.2 PROFIBUS
Subscriber
The subscribers evaluate the broadcast telegrams, sent from the publishers, and use the
data which has been received as setpoints. The setpoints are used, in addition to the
setpoints received from the master, corresponding to the configured telegram structure
(p0922).
Links and taps
The links configured in the subscriber (connections to publisher) contain the following
information:
● From which publisher is input data received?
● Which input data are there?
● Where do the additional setpoints come in?
Several taps are possible within a link. Several input data or input data areas, which are not
associated with one another, can be used as setpoint via a tap.
Prerequisites and supplementary conditions
The following supplementary conditions should be observed for the "slave-to-slave
communication" function:
● Number of process data, max. per drive
● Number of links to publishers
● Number of taps per link
Applications
For example, the following applications can be implemented using the "slave-to-slave
communication" function:
● Axis couplings
● Specifying binector connections from another slave
10.2.8.2

Setpoint assignment in the subscriber

Setpoints
Information about setpoints:
● Number of setpoint
● Contents of the setpoints
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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).
The structure and contents of the data are determined using the local process data
configuration for the "SINAMICS slave".
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
SINAMICS DCM DC Converter