Rockwell Automation 2098-IPD-020-DN Ultra5000 Series Intelligent Positioning Drives with DeviceNet Reference Manual - Manual (Page 25)

Publication 2098-RM002A-EN-P – October 2001
Chapter
4
Programming Reference
The Ultra5000 Drive with DeviceNet implements a vendor specific
device profile - Rockwell Automation Miscellaneous (Device Type:
73hex).
The configuration data and behaviors implemented in the Ultra5000
Drive with DeviceNet are defined using object modeling. The
Ultra5000 Drive with DeviceNet is modeled as a collection of objects.
An Object is a collection of related attributes and services. An attribute
is an externally visible characteristic or feature of an object, while a
service is a procedure an object can perform.
The following general definitions also may be useful in understanding
DeviceNet object modeling:
• Object - A representation of a particular type of data component
within the DeviceNet node.
• Instance - A specific occurrence of an Object.
• Attribute - A description of a characteristic or feature of an Object.
Attributes provide status information or govern the operation of an
Object.
• Service - A function performed by an Object.
Object Model
The Object Model diagram on Page 4-2 depicts the objects supported
in the Ultra5000 Drive with DeviceNet. The following table indicates
the object classes present in this device, and the number of instances
present in each class.
Object Class Number of Instances
Identity 4
Message Router 1
DeviceNet 1
Assembly 16
Connection 1 - I/O
6 - Explicit
Parameter 340