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Diagram 121: Conditions of a signal
By selecting and or or in the first entry of the condition it is possible to adjust the condition
to your special needs. If and is selected, then all listed elements must have the
required state to meet the condition. If or is selected, then the condition already 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
switch “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.
Complex Conditions
It is also possible to create complex conditions by mixing ‘and’ or ‘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.
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