Acknowledge handler object (class id 2bh), Class attributes, Instances – Rockwell Automation 1440-SPD02-01RB XM-220 Dual Speed Module User Manual

Page 105: Instance attributes, Services, Acknowledge handler object (class id 2b, Instance attributes services

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Publication GMSI10-UM004B-EN-P - May 2010

DeviceNet Objects 97

Acknowledge Handler
Object
(Class ID 2B

H

)

The Acknowledge Handler Object is used to manage the reception of message
acknowledgments. This object communicates with a message producing
Application Object within a device. The Acknowledge Handler Object notifies
the producing application of acknowledge reception, acknowledge timeouts,
and production retry limit errors.

Class Attributes

The Acknowledge Handler Object provides no class attributes.

Instances

A module provides only a single instance (instance 1) of the Acknowledge
Handler Object. This instance is associated with instance 4 of the Connection
Object, the slave COS connection to a higher level master.

Instance Attributes

Services

Table C.26 Acknowledge Handler Object Instance Attributes

Attr ID

Access
Rule

Name

Data Type

Default Value

1

Get/Set

Acknowledge Timer

UINT

16ms

2

Get/Set

Retry Limit

USINT

1

3

Get

COS Producing
Connection Instance

UINT

4

Table C.27 Acknowledge Handler Object Services

Service
Code

Class/Instance Usage

Name

0E

h

Instance

Get_Attribute_Single

10

h

Instance

Set_Attribute_Single

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