Motion Control With Profidrive - Siemens Sinamics S110 Function Manual

Communication PROFIBUS DP
9.1 Communication according to PROFIdrive
9.1.3.7

Motion Control with PROFIdrive

Description
The "Motion control with PROFIBUS" or "Motion Control with PROFINET" function can be
used to implement an isochronous drive link between a master and one or more slaves via
the PROFIBUS field bus or an isochronous drive link via PROFINET.
Note
The isochronous drive link is defined in the following documentation:
Reference: /P5/ PROFIdrive Profile Drive Technology
Properties
● No additional parameters need to be entered in addition to the bus configuration in order
● The master-side default setting is made via the hardware configuration, e.g. B. HWConfig
● Fixed sampling times are used for all data communication.
● The Global Control (GC) clock information on PROFIBUS is transmitted before the
● The length of the clock cycle depends on the bus configuration. When the clock cycle is
● A sign-of-life counter is used to monitor user data transfer and clock pulse failures.
Overview of closed-loop control
● Sensing of the actual position value on the slave can be performed using:
● The encoder interface must be configured in the process data.
● The control loop is closed via the PROFIBUS.
● The position controller is located on the master.
● The current and speed control systems and actual value sensing (encoder interface) are
● The position controller clock cycle is transmitted across the field bus to the slaves.
434
to activate this function, the master and slave must only be preset for this function
(PROFIBUS).
with SIMATIC S7. The slave-side default setting is made via the parameterization
telegram when the bus is ramping up.
beginning of each cycle.
selected, the bus configuration tool (e.g. HWConfig) supports:
– High number of drives per slave/drive unit -> long cycle
– High number of slaves/drive units -> long cycle
– Indirect measuring system (motor encoder)
– Additional direct measuring system
located on the slave.
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Drive functions