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Commissioning and configuration
134
BCL 548
i
Leuze electronic
10.6
Overview of the project modules
When using PROFINET-IO modules, the parameters are assembled dynamically, i.e., only
the parameters that were selected by the activated modules are changed.
The BCL has parameters (device parameters) that must always be present. These param-
eters are defined outside of modules and are thus linked to the base module (DAP).
In the current version, a total of 56 modules are available for use. A
Device Module
(
DAP
,
see "Permanently defined parameters / device parameters" on page 130) is used for basic
scanner configuration of the BCL 548
i
and is permanently integrated into the project. Further
modules may be included into the project according to requirements and application.
The modules fall into the following categories:
• Parameter module for the configuration of the BCL 548
i
• Status or control modules that influence the input/output data.
• Modules that may include both parameters and control or status information.
A PROFINET-IO 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 BCL 548
i
interprets the incoming output data and triggers the appropriate reactions in
the BCL 548
i
. 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 IO Controller.
During the startup or initialization phase, the BCL 548
i
sets the input data to an initial value
(usually 0).
Notice!
The modules can be grouped together in any order in the engineering tool. Note, however,
that many BCL 548
i
modules contain linked data (e.g., the decoding result modules 20-41).
It is important to maintain the
consistency of these data
.
The BCL 548
i
offers 56 different modules. Each of these modules may only be selected once;
otherwise, the BCL 548
i
ignores the configuration.
The BCL 548
i
checks its max. permissible number of modules. The control also reports an
error if the input and output data across all selected modules exceed a total length of 1024
bytes.
The specific limits of the individual modules of the BCL 548
i
are declared in the GSD file.
The following module overview shows the characteristics of the individual modules: