7 Setting the process data
Depending on the application used, different process data objects with various
lengths and contents are required for data exchange. The CM-PROFINET module
enables a wide range of settings. Using a hardware configurator, the user can de-
sign the process data objects required for the relevant application.
Two types of process data objects are available:
The required objects must be created in the hardware configuration of the
PROFINET IO controller. On the frequency inverter side it is not possible to set up
the required object. The frequency inverter adjusts itself to the created object au-
For more information on the contents of the objects, refer to Chapter 8 “Handling of
objects”.
The PKW object is used for read and write access to frequency inverter parameters.
The object will produce additional bus load because it will send its contents with
each data exchange cycle, no matter if it is actually needed or not. As an alternative
to the PKW object, the CM-PROFINET module supports read and write access to
data sets. The function is described in Chapter
8.2 “Parameter access through read-
ing/writing of data sets”.
Each PZD object contains two Word data type input and output objects. For infor-
mation on how to handle this object, refer to Chapter 8.3.1 “Data types of OUT/IN
objects”.
7.1 Configuration process on PROFINET IO controller
The following chapter describes the configuration procedure of a frequency inverter
with the PROFINET communication module CM-PROFINET using the example of the
Siemens STEP7 hardware configurator. Generally, the procedure is the same for
other configurations.
First, the device description file is installed in the hardware configurator (if not done
already). This is done in the menu Options\Install GSD file. Here, enter the path
and name of the GSD file.
Once the GSD file is installed, the frequency inverter will appear on level:
PROFINET IO\ Additional Field Devices \Drives\Bonfiglioli Vectron\
PROFINET IO Connection
From this position, a frequency inverter BV Drive can be connected to the
PROFINET system (drag & drop).
26 CM-PROFINET 10/13
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