Owner's manual

Publication GMSI10-UM010C-EN-P - May 2010
94 DeviceNet Objects
Alarm Object
(Class ID 31D
H
)
The Alarm Object models a two-stage (alert and danger levels) alarm.
Class Attributes
The Alarm Object provides no class attributes.
Instances
There are 2 instances of this object.
Instance Attributes
Table C.30 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
6 = Tachometer Fault
4 Get/Set Alarm Enable BOOL Indicates whether this
alarm object is enabled.
0 = Disabled
1 = Enabled
6 Get Threshold Units USINT Indicates whether the
threshold and hysteresis
value are specified in
units of measure.
Set to 1
1 = Measurement units
7 Get/Set Condition USINT Indicates on which side of
the threshold values the
alarm and danger
conditions exist.
0 = Greater than
1 = Less than
2 = Inside range
3 = Outside range
8 Get/Set Alert Threshold
(High) (Clockwise)
REAL The threshold value for
the alert (alarm) condition
(greater threshold for
range types).
9 Get/Set Danger Threshold
(High) (Clockwise)
REAL The threshold value for
the danger (shutdown)
condition (greater
threshold for range types).
10 Get/Set Alert Threshold
Low
(Counterclockwise)
REAL The lesser threshold value
for the alert (alarm)
condition for the range
condition types.