Instance attributes – Rockwell Automation 1440-VDRP06-00RH XM-160/161/162 Direct Vibration Module User Manual

Page 122

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Publication GMSI10-UM025C-EN-P - August 2010

114 DeviceNet Objects

Instance Attributes

Table C.28 Channel Object Instance Attributes

Attr ID

Access
Rule

Name Data

Type

Description

Semantics

3

Get/Set

Output Data
Units

ENGUNIT

The data units of the
signal resulting from the
signal processing
performed in the channel.

See DeviceNet Specification
Volume 1 Appendix K. Also see
Parameter Object Instances 7 to
12.

Valid values:
g =1504 hex
in/sec = 2B07 hex
mils = 0800 hex
psi = 1300 hex
volt = 2D00 hex
mm/s = 0900 hex
µm = 2204 hex
Pa = 1309 hex

This setting is directly related to
the Sensitivity Units of the
associated transducer and the
Level of Integration performed
in the channel.

4

Get Integration

Level of
Integration

USINT

The level of integration to
perform on the signal.

0 = None
1 = Single

5

Get/Set

Low Cutoff
Frequency

USINT

The effective high pass
filter (low frequency
corner) selection.

0 = Very low
1 = Low

9

Get/Set

Name

STRING2

A name to help identify
this channel.

10

Get/Set

Full Scale

REAL

The maximum signal
expected to be processed
by the channel.

Output Data Units + Overall
Base Measurement Class (RMS,
Pk, Pk-Pk)

Setting the Full Scale to a
greater value allows the
channel to handle greater input
signals without saturating or
clipping. Setting the Full Scale
to a lesser value allows the
signal to be measured with
greater resolution.

100

Get

Very Low HPF
Corner
Frequency

REAL

The frequency, in Hz, of
the "Very low" Low
Cutoff Frequency
option
for attribute 5.

Hz

101

Get

Low HPF Corner
Frequency

REAL

The frequency, in Hz, of
the "Low" Low Cutoff
Frequency
option for
attribute 5.

Hz

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