Rockwell Automation 1440-RMA00-04RC XM-440 Master Relay Module - Manual (Page 85)

Rockwell Automation Publication GMSI10-UM009D-EN-P - June 2011
DeviceNet Objects 85
Relay Object
(Class ID 323
H
)
The Relay Object holds information about controlling the operation of an
on-board relay.
Class Attributes
Instances
There are 12 instances of the Relay Object.
Instance Attributes
Table C.25 Relay Object Class Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
3 Get Number of
Instances UINT Number of Instances in
this class. 12
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.
Table C.26 Relay Object Instance Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
3 Get Relay Status BOOL The current status of the
relay. 0 = Off
1 = On
4 Get/Set Relay Enable BOOL Indicates whether this
relay object is enabled. 0 = Disabled
1 = Enabled
5 Get/Set Latch Enable BOOL Indicates whether this
relay latches (requires a
reset command to
deactivate). 0 = Nonlatching
1 = Latching
6 Get/Set Failsafe Enable BOOL Indicates whether this
relay is normally
energized (activated
during power loss). 0 = Non-failsafe (not normally
energized)
1 = Failsafe (normally energized)