For the SINAMICS S110/S120, configure the axis telegrams for data exchange (see Section
Performing the configuration for the D4x5-2 offline (Page 175)).
As well as offering cyclic data exchange, PROFIdrive drive units have an acyclic
communication channel. In particular, this is used for reading and writing drive parameters
(e.g. error codes, alarms, controller parameters, motor data, etc.).
As a result, data can be transferred on an "acyclic" as opposed to "cyclic" basis when required.
Acyclic reading and writing of parameters for PROFIdrive drives is based on the DP V1 services
"Read data set" and "Write data set".
The acyclic DP‑V1 services are transferred in parallel to the cyclic communication via
PROFIBUS or PROFINET. The PROFIdrive profile specifies precisely how these basic
mechanisms are used for read/write access to parameters of a PROFIdrive-compliant drive.
The PROFIdrive standard states that "pipelining" of jobs on PROFIdrive drives is not
supported. This means:
● Only one "Write/read data set" can be performed at any one time on a drive unit (e.g.
SINAMICS S110/S120 control unit or the SINAMICS Integrated of a SIMOTION D).
● However, if several PROFIdrive drive units are connected to a controller, a job can be
processed for each of these drive units at the same time. In this case, the maximum total
number of jobs will depend on the controller (maximum of eight jobs simultaneously with
SIMOTION).
For acyclic data exchange with SINAMICS drives, this means you will have to coordinate the
write/read jobs with each other (buffer management). An interlock must be set to prevent the
application or different parts of the application from sending overlapping jobs to the same
PROFIdrive drive unit.
Additional references
Additional information on how to use DP V1 services can be found in the
SIMOTION
Communication System Manual.
SIMOTION Utilities & Applications also has a DP V1 library with functions that are capable of
performing coordination tasks commonly associated with acyclic communication. The library
not only coordinates access to the system functions (_readRecord/_writeRecord/
_readDriveParameter/_writeDriveParameter/, etc.), but also expands the range of functions
for frequently required tasks, e.g. the reading of faults and alarms from the drive unit.
SIMOTION Utilities & Applications is part of the scope of delivery of SIMOTION SCOUT.
The following functions are available in the DP V1 library:
● Buffer management (coordination of a number of parallel DP V1 services)
● StartUp (function for coordinating the power-up of the SINAMICS drive with SIMOTION)
● TimeSync (applicative time synchronization: Transfer of SIMOTION time of day to the
SINAMICS drives)
● SetActIn (activating/deactivating objects in SIMOTION and SINAMICS)
● RwnPar (reading and writing of drive parameters)
● GetFault (reading faults and alarms from the drive)
Commissioning (software)
7.5 Additional information on configuring the SINAMICS Integrated
SIMOTION D4x5-2
238
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
