Defining condition variable
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Any number of interlocking conditions can be defined for every action. These conditions allow for an additional restriction of the executability of the action. These conditions are defined with formulas, in which you can use the variables from the active projects. The variables available for the command interlocking must be defined. The formula addresses these variables via the Index. The condition variable is automatically substituted if you use a '*' in the definition.
Select the node 'Variable' of the command interlocking and, via the context menu,
New, add a new condition variable.
Cancel the variable selection dialog. This results in the creation
of an empty definition. Select this definition and enter the text
SW*_CO for Variable. The settings for the condition
variable are then as follows: