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with other trains. When the multiple unit stops, then the affected engines are assumed to
be uncoupled. They are then available to be operated individually or with other trains.
This internal “coupling” and “uncoupling” is done automatically. The software requires
no manual intervention, however the real coupling and uncoupling of the engines on the
model railroad is still done by the operator.
When a train is selected in the Train Window then the window shows the state of the
first engine assigned to the train. Especially the function buttons specified for the first
engine are visible. If you want to control the auxiliary functions of the second or any
other engine of the train manually, select this engine in the Train Window and use the
function buttons of this engine instead.
Automatic operation of auxiliary functions of a multiple unit are normally performed by
the first engine only. Please check the option Forward Function, if orders to operate a
specific engine function shall be performed by the other engines of the multiple unit,
too.
Operation of Additional Function Only Decoders
Function only decoders are often used to add additional functions to a decoder controlled
locomotive or to other rolling stock. An example is lighting in passenger cars.
These decoders can be controlled with TrainController, too.
This is done by setting up a “dummy engine” with the digital address of the function
only decoder. The speed settings of this decoder don't matter in this case. The function
setup of this decoder is done as outlined in section 3.6, “Headlights, Steam and Whistle”.
Manual operation of the extra functions provided by the function only decoder is done
by selecting the “dummy engine” in the Train Window and operating the function buttons
of this engine.
For automatic operation of the extra functions provided by a function only decoder it is
necessary to define a train and to setup the “dummy engine” representing the function
only decoder along with the actual engine as multiple unit. Additionally it is necessary
to check the option Forward Function (see Diagram 65). If different function symbols
are used for the functions of the actual engine and the functions provided by the function
only decoder, then it is possible to select and activate the specific functions of the
function only decoder automatically without affecting the functions of the actual engine.
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