A block-oriented Device can be composed using the modelling elements defined in this specification. A block-oriented Device includes a configurable set of Blocks. Figure 56 shows the general structure of block-oriented Devices.
Figure 56 – Block-oriented Device structure example
An Object called Blocks is used as a container for the actual BlockType instances. It is of the ConfigurableObjectType which includes the SupportedTypes folder. The SupportedTypes folder for Blocks is used to maintain the set of (subtypes of) BlockTypes that can be instantiated. The supported Blocks may be restricted by the block-oriented Device. In Figure 56 the BlockTypes B and E have already been instantiated. In this example, only one instance of these types is allowed and the SupportedTypes folder therefore does not reference these types anymore. See 9.2.1 for the complete definition of the ConfigurableObjectType.