Motion Control With Profidrive - Siemens SINAMICS S120 Function Manual

Communication
11.1 Communication according to PROFIdrive
11.1.2.4

Motion Control with PROFIdrive

The "Motion Control with PROFIBUS" or "Motion Control with PROFINET" function can be
used to implement an isochronous drive coupling between a master (a controller) and one or
more slaves (drives) via PROFIBUS or an isochronous drive coupling via PROFINET.
Note
The isochronous drive coupling is defined in the following documentation:
PROFIdrive Profile Drive Technology
PROFIBUS User Organization e. V.
Haid-und-Neu-Straße 7, D-76131 Karlsruhe, Germany, http://www.profibus.com
Properties
● No additional parameters need to be entered in addition to the bus configuration in order
to activate this function, the master and slave must only be preset for this function
(PROFIBUS).
● The master-side default setting is made via the hardware configuration, e.g. HW Config
with SIMATIC S7. The slave-side default setting is made via the parameterization
telegram when the bus is ramping up.
● Fixed sampling times are used for all data communication.
● The Global Control (GC) clock information on PROFIBUS is sent before the beginning of
each cycle.
● The cycle length depends on the bus configuration. When the cycle is selected, the bus
configuration tool (e.g. HW Config) supports:
– Large number of drives per slave / drive unit → longer cycle
– Large number of slaves / drive units → longer cycle
● A sign-of-life counter is used to monitor user data transfer and clock pulse failures.
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Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions