Siemens SINAMICS S120 Function Manual page 744

Communication
10.2 Communication via PROFIBUS DP
Links and taps
The links configured in the subscriber (connections to publisher) contain the following
information:
● From which publisher is the input data received?
● What is the content of the input data?
● Where are the additional setpoints received?
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.
Links to your own drive units are possible. For example, data in a Double Motor Module can
be transferred from drive A to drive B. This internal link corresponds, as far as the timing is
concerned, to a link via PROFIBUS
Preconditions
The following preconditions should be observed for the "slave-to-slave communication"
function:
● STARTER Version 4.2 or higher
● Configuration:
● Firmware version 4.3 or higher
● The maximum number of process data per drive can be identified from the value in r2050
● A maximum of 16 links to Publishers
Note
The "slave-to-slave communication" function is not available for the CU310-2 PN.
Applications
For example, the following applications can be implemented using the "slave-to-slave
communication" function:
● Axis couplings (this is practical for isochronous mode)
● Specifying binector connections from another slave
742
– Drive ES Basic, Drive ES SIMATIC or Drive ES PCS7 Version 5.3 SP3 or higher
– Alternatively using a GSD file
– minus the resources that have already been used
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions