FDT – A Brief Introduction
FDT Tools
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ifak system GmbH
CommChannel
The CommChannel is responsible for the connection to its man-
aged hard- or software and provides the communication interface
to the DeviceDTMs. Communication requests and responses are
sent, received and manged by the CommChannel.
A pointer to the main interface of the channel
(IFdtCommunication) is passed to the DeviceDTM. The channel
provides the interface IFdtChannelSubTopology, which supports
the inclusion of a DeviceDTM into the topology of the Com-
mChannel. It also contains functions, which allow the Device-
DTM to check whether it is able to communicate with this
channel (e.g. information about the supported fieldbus protocol).
