Instruction Manual

Publication GMSI10-UM005C-EN-P - May 2010
DeviceNet Objects 99
Services
Alarm Object
(Class ID 31D
H
)
The Alarm Object models a two-stage (alert and danger levels) alarm.
Class Attributes
Instances
There are 2 instances of this object.
Instance Attributes
Table C.29 Acknowledge Handler Object Services
Service
Code Class/Instance Usage Name
0E
h
Instance Get_Attribute_Single
10
h
Instance Set_Attribute_Single
Table C.30 Alarm Object Class Attributes
Attr ID
Access
Rule Name Data Type Description Semantics
1 Get Revision USINT Revision of the
implemented object.
2 (indicates that Threshold
Multiplier is a REAL instead of
USINT)
Table C.31 Alarm Object Instance Attributes
Attr ID
Access
Rule Name Data Type Description Semantics
3 Get Alarm Status 3 BITS The current status of the
alarm.
0 = Normal
1 = Alert (alarm)
2 = Danger (shutdown)
3 = Disarm
4 = Xdcr Fault
5 = Module Fault
4 Get/Set Alarm Enable BOOL Indicates whether this
alarm object is enabled.
0 = Disabled
1 = Enabled