Rockwell Automation 1440-DYN02-01RJ XM Dynamic Measurement Module - Manuel (Page 133)

Publication ICM-UM002F-EN-E - March 2013 133
CIP Objects Appendix B
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
Overall Value
attribute may not represent the
actual field value.
5 Get Data Units ENGUNIT The units context of the
Overall Value attribute.
This setting is determined by the
Channel Object’s
Output Data
Units attribute (see
page 128 ).
6 Get/Set Measurement USINT The measurement (or
calculation) performed to
produce the
Overall
Value.
0 = RMS
1 = RMS peak
2 = RMS pk-to-pk
3 = Peak
4 = Peak-to-peak
5-255 Reserved
7 Get Time Constant REAL The detection time
constant associated with
the output smoothing
filter (for the RMS and DC
meters) or the decay rate
of the peak meters. This setting is based on the
Low Frequency Cutoff
(Channel object) and
Measurement (attribute 6).
If
Measurement is set to 3 or
4, the Overall Time Constant is
1.5 seconds.
If
Measurement is set to 0, 1,
or 2, the table below shows the
Time Constant.
8 Get Damping Factor REAL The damping factor
associated with output
smoothing filter for the
RMS and DC meters (not
used with peak meters). 1.0
9 Get/Set Overall Filter USINT Overall filter type applied
to the input signal before
the measurement is
performed. 0 = None
1 = Low Pass Filter
2-255 Reserved
10 Get/Set Low Pass
Corner
Frequency UINT The corner frequency of
the low pass filter. 200 to 20000 Hz
Table B.33 Overall Measurement Object Instance Attributes
Attr ID
Access
Rule Name Data Type Description Semantics
Low
Frequency
Cutoff
Overall
Time
Constant
0.2 Hz 0.8
1 Hz 0.16
5 Hz 0.045
10 Hz 0.045
40 Hz 0.045