4 - devicenet functions, Object model, Chapter 4 – Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual User Manual

Page 25: Devicenet functions, Object model -1, Chapter

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Publication 1760-UM003A-EN-P - September 2005

Chapter

4

DeviceNet Functions

Object Model

The Pico DeviceNet Interface is based on the Communications
Adapter Profile according to the ODVA specifications (Release V2.0).

The DeviceNet object model can be used to describe all 1760-DNET
functions. The object model reflects the principle of communication at
the application layer. This manual deals in the following only with
objects relevant for your application. Primary topic is the
manufacturer-specific class Pico object.

Figure 3.5 DeviceNet Objects

The DeviceNet objects in the illustration can be compiled again as
‘Management objects’, ‘Connection objects’ and ‘Manufacturer-specific
objects’.

Object

Polled I/O

Connection

COS/Cyclic I/O

Connection

Bit Strobed I/O

Connection

Explicit Message

Connection

Dynamic

Connection

DeviceNet

Object

Message Router

Object

Acknowledge Handler

Object

Identity

Object

Pico

Object

Pico-LINK

Protocol Handler

Assembly

Object

Connection Object

DeviceNet

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