Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module - Manual (Page 143)

Publication GMSI10-UM003D-EN-P - May 2010
135
Instance Attributes
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.
Table C.44 Speed Measurement Object Instance Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
3 Get Speed Value REAL The measured speed
value. CPM
4 Get Status BOOL Indicates if a fault or
alarm has occurred. 0 = Operating without alarms or
faults.
1 = Alarm or fault condition
exists. The Speed Value
attribute may not represent the
actual field value.
5 Get Maximum
Speed REAL The maximum (peak)
measured speed value
(positive or negative)
since the most recent
reset. CPM
12 Get/Set Time Constant UINT The time constant value
used for exponential
averaging of the Speed
Value (a low pass
filter/output smoothing
filter). Milliseconds
Table C.45 Speed Measurement Object Services
Service
Code
Class/Instance Usage Name Description
05
h
Instance Reset Clears Maximum (Peak)
speed to 0.
0E
h
Instance Get_Attribute_Single Returns a single attribute.
10
h
Instance Set_Attribute_Single
Sets a single attribute.
1