to pop up its description (if any).
An instance of this Composite Function Block type provides the
Graphical User Interface (GUI) elements shown below,
interconnected with a plug of type TUNING_ADP.
Hence, it can serve as a client of the TUNING
service delivered by a server FB, such as an instance of the
TUNING_SIM FB type, over
the associated adapter connection.
See the TUNING_TEST and TUNING_TESTR system
configurations for examples of the use of an instance of this FB
type.
