Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module - Manual (Page 130)

Publication GMSI10-UM014D-EN-P - May 2010
122 DeviceNet Objects
Instances
There are 2 instances of this object.
Instance Attributes
1 These attributes cannot be set for instance 2. The instance 2 settings match the channel 1 settings.
Services
Table C.43 Spectrum Waveform Measurement Object Instances
Instance Description
1 Channel 1 Shaft Relative Overall
2 Channel 2 Case Absolute Overall
Table C.44 Spectrum Waveform Measurement Object Instance Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
3 Get Status BOOL Indicates if a fault or
alarm has occurred. 0 = Operating without alarms or
faults.
1 = Alarm or fault condition
exists. The Spectrum and
Waveform data may not
represent the actual field value.
4 Get Data Units ENGUNIT The units context of the
Data attributes. See DeviceNet Specification
Volume 1 Appendix K.
9 Get/Set
Period
1 REAL The period of the
waveform. 0.02 to 80.0 seconds
10 Get Number of
Waveform
Points
1
UDINT Number of points in the
waveform data. 256, 512, 1024, or 2048
16 Get Storage
Timestamp LTIME Records the timestamp of
the stored data. 64-bit microsecond counter
value.
Table C.45 Spectrum Waveform Measurement Object Services
Service
Code
Class/Instance Usage Name Description
0E
h
Instance Get_Attribute_Single Returns a single attribute.