Services, Relay object (class id 323h), Class attributes – Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module User Manual

Page 127: Instances, Class attributes instances, Relay object (class id 323

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Publication GMSI10-UM014D-EN-P - May 2010

DeviceNet Objects 119

Services

1

Attributes can only be set while the device is in Program Mode. See the description of the Device Mode Object
for more information.

Relay Object
(Class ID 323

H

)

The Relay Object models a relay (actual or virtual). A relay can be activated or
deactivated based on the status of one or more alarms.

Class Attributes

Instances

There are 5 instances of this object.

Table C.39 Overall Measurement Object Services

Service
Code

Class/Instance Usage

Name

Description

0E

h

Instance

Get_Attribute_Single

Returns a single attribute.

10

h

Instance

Set_Attribute_Single

Sets a single attribute.

1

Table C.40 Relay Object Class Attributes

Attr ID

Access
Rule

Name Data

Type

Description

Semantics

1

Get

Revision

USINT

Revision of the
implemented object.

2 (indicates that Delay is a
UINT in milliseconds instead of
USINT in tenths of seconds)

3

Get

Number of
Instances

UINT

Number of Instances in
this class.

5

100

Set

Reset All

USINT

Setting this attribute is
equivalent to executing
the Class Reset service.

Reset All is an attribute that
provides a way to perform a
Class level Reset service via the
Set_Attribute_Single service.
Setting this attribute to any
value is equivalent to
performing the Class level Reset
service. Reading the Reset All
attribute always returns zero.

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