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Commissioning and configuration
12.5.7 Overview of the project modules
When using PROFIBUS modules, the parameters are assembled dynamically, i.e., only the
parameters that were selected by the activated modules are changed.
The MA
204i
parameters are defined outside of modules and are thus linked to the base module (DAP).
In the current version, several modules are available for use. A device module (DAP, see
Permanently defined parameters/device parameters) is used for basic scanner configuration
of the MA
included into the project according to requirements and application.
The modules fall into the following categories:
• Parameter module for the configuration of the MA 204i.
• Status or control modules that influence the input/output data.
• Modules that may include both parameters and control or status information.
A PROFIBUS module defines the existence and meaning of the input and output data. In
addition, it defines the necessary parameters. The arrangement of the data within a module
is defined.
The composition of the input/output data is defined via the module list.
The MA
204i
the MA 204i. The interpreter for processing the data is adapted to the module structure
during initialization.
The same applies for the input data. Using the module list and the defined module proper-
ties, the input data string is formatted and referenced to the internal data.
During cyclic operation, the input data is then passed on to the controller.
During the startup or initialization phase, the MA
(usually 0).
Notice!
The modules can be grouped together in any order in the engineering tool. Note, however,
that many MA
of these data.
The MA
204i
otherwise, the MA
The MA
204i
error if the input and output data across all selected modules exceed a total length of 488
bytes. A maximum of 244 bytes can be used for both the input data and for the output data.
The specific limits of the individual modules of the MA
68
has parameters (device parameters) that must always be present. These
204i
and is permanently integrated into the project. Further modules may be
interprets the incoming output data and triggers the appropriate reactions in
204i
modules contain related data. It is important to maintain the consistency
offers different modules. Each of these modules may only be selected once;
204i
ignores the configuration.
checks its max. permissible number of modules. The control also reports an
204i
sets the input data to an initial value
204i
MA
204i
are declared in the GSD file.
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