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OBJECT MAP DEFINITIONS
6.1 Obejct model of DeviceNet
For DeviceNet communication, each node is modeled as collections of objects (abstraction of particular functions of the
products). The following four terms are used to describe object.
The following explains object definitions for use of the FR-A8ND DeviceNet.
For details of the definitions, consult the DeveiceNet documentation available from ODVA.
Item
Definition
Class
Collections of all objects which have same types of functions. Generalization of object
Instance
Concrete expression of object
Attribute
Expression of object characteristic
Service
Function supported by object or class