Rockwell Automation 1440-VSE02-01RA XM-122 gSE Vibration Module - Manual (Page 175)

Publication GMSI10-UM013D-EN-P - May 2010
DeviceNet Objects 165
Services
12 Get Data Format USINT The format of the
spectrum data. 0 = Complex data
For instances 3 and 4, this value
equals 1, which is Real data
13 Get Average Type USINT The type of averaging
performed. 0 = Asynchronous (spectrum)
1 = Synchronous (waveform)
Determined by the
Synchronous attribute of the
Channel Object.
When set to Asynchronous,
consecutive spectrum
measurements are averaged
together to produce the
Spectrum data.
When set to asynchronous,
synchronized waveforms are
averaged together to produce
the Waveform data, and the
Spectrum data is produced
from the averaged waveform. A
trigger source from a
tachometer, for example, is
required to obtain the
synchronized waveforms.
14 Get/Set Number of
Averages UINT The number of individual
data sets to be
incorporated into the
average calculation. 0 = Invalid
1 = No averaging
> 1 = Averaging
Table C.52 Spectrum Waveform Measurement Object Instance Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
Table C.53 Spectrum Waveform Measurement Object Services
Service
Code
Class/Instance Usage Name Description
0E
h
Instance Get_Attribute_Single Returns a single attribute.
10
h
Instance Set_Attribute_Single
Sets a single attribute.
1
4B
h
Instance Get_Spectrum_Chunk Upload a portion of the
current Spectrum data.