Interface Classes
In DLMS/COSEM, all the data in electronic meters and devices are represented by means of attribute values. Any real world thing can be described by attributes; methods allow operations to be performed on the attributes. Attributes and methods constitute an object. The first attribute in any object is the logical_name. It is one part of the identification of the object. Objects that share common characteristics are generalized as an interface class with a class_id. Instantiations of an interface class are called COSEM objects. IEC 62056-62 defines 19 interface classes for COSEM object model.
Read more about this topic: IEC 62056
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