You can extend interfaces just like function blocks. The interface is then also given the interface methods and interface properties of the basic interface in addition to its own.
Creation of an interface that extends another interface.
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In the device tree, select the “Application” object.
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Click “Project Add Object Interface”.
The “Add Interface” dialog opens.
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Specify a name for the new interface.
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Select the “Extends” option and then click the
button.
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The Input Assistant opens.
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From the category “Interfaces”, select the interface that is to be extended by the new interface.
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See also: ⮫ Interface