Commissioning (software)
6.5 Additional information on configuring the SINAMICS Integrated
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 02/2012
221
6.5.5 SINAMICS diagnostic buffer
The diagnostic buffer of the SINAMICS Integrated, the CX32-2 and the SINAMICS S120
control unit can be displayed in SIMOTION SCOUT.
To do this, select the SINAMICS Integrated, the CX32-2 or the SINAMICS S120 control unit
in the project tree. Then select "Target system" > "Device diagnostics" in the menu.
In addition, the SINAMICS diagnostic buffer entries are also displayed in the D4x5-2 device
diagnostics. All D4x5-2 diagnostics buffer entries are displayed first, followed by those for the
SINAMICS Integrated and the CX32-2. The start of the SINAMICS diagnostics buffer entries
is identified by the following entry:
>>>>>> >>>>>> Start of SINAMICS Integrated diagnostics buffer, station address = x
<<<<<<
You also have the option of viewing the SIMOTION D4x5-2 and SINAMICS Integrated
diagnostics buffers via IT DIAG.
6.5.6 Acyclic communication with the drive
Overview
PROFIdrive drive units are supplied with control signals and setpoints by the controller and
return status signals and actual values. These signals are normally transferred cyclically (i.e.
continuously) between the controller and the drive.
For the SINAMICS S110/S120, configure the axis message frames for data exchange (see
Section Performing the configuration fo
r the D4x5-2 offline (Page 159)).
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, warnings, controller parameters, motor data, etc.).
As a result, data can be transferred on an "acyclic" as opposed to a "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).
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