TrainController Gold and Silver - Freiwald Software

equired state to meet the condition. If or is selected, then the condition applies if at
least one of the listed elements has the required state.
In the example displayed above, it is possible to turn the signal to green only if the turnout
“Hidden Yard East 1” is closed and the contact indicator “Hidden Yard” is turned
off.
The elements that are part of the condition and the element that is to be restricted, may
be located at arbitrary locations of your model railroad. It should be noted that it is not
necessary that the elements are placed in the same switchboard window.
250
Complex Conditions
It is also possible to create complex conditions by mixing ‘and’ and ‘or’. This is done
by including AND-groups or OR-groups into a condition. Such groups can also contain
other AND- or OR-groups, respectively. In this way it is possible to create conditions of
virtually unlimited complexity. If a group is contained in another group, then the inner
(contained) group is checked first, the result of this calculation is then taken into account
for calculation of the containing (outer) group. And so on, if the outer group is
again contained in another group.
Each condition establishes itself an AND- or OR-group. Diagram 143 shows a condition,
which is an AND-group. The simple condition in this example does not contain
any other groups.
It is also possible to inverse the meaning of each checked state, of a group or of the
whole condition with the NOT-option. If this is done, then the appropriate item of the
condition is fulfilled, when the related object is not in the specified state or, if NOT is
applied to a group or the condition itself, if the result calculated for this group or condition
is ‘wrong’. Among others the NOT-option is interesting for objects with more than
two states. An example is a condition, that will be fulfilled, if a three way turnout is set
to one of the two diverging states. Instead of assigning the two diverging states of the
turnout to the condition, it is also possible to use the third state (main leg) and apply the
NOT-option to it („if not set to main leg“).
Numerical Groups
In addition to the AND- and OR-groups provided by other TrainController versions
TrainController Gold provides three additional types of groups: