Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module - Manual (Page 117)

Publication GMSI10-UM014D-EN-P - May 2010
DeviceNet Objects 109
Instances
There are 9 instances of this object. Each instance is permanently associated
with a different measurement.
Instance Attributes
Table C.27 Alarm Object Instances
Instance Number Associated Measurement
1 CH 1 Shaft Relative Overall
2 CH 2 Case Absolute Overall
3 CH 1 DC Bias
4 CH 2 DC Bias
5 CH 1 Shaft Relative 1X Magnitude
6 CH 2 Case Absolute 1X Magnitude
7 Shaft Absolute Overall
8 Shaft Absolute 1X Magnitude
9 Speed
Table C.28 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 or
percentage of full scale. 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. Not
applicable to vector
alarms. 0 = Greater than
1 = Less than
2 = Inside range
3 = Outside range