Rockwell Automation 1441-DYN25-Z Dynamix 2500 Data Collector - Manual (Page 101)

Rockwell Automation Publication 1441-UM001B-EN-P - September 2012 101
Setting Up Measurements Chapter 3
The following table shows the collection specifications.
The following table shows the transducer specifications in the collection
specifications.
Combine Measurement Definitions for a Location
You can use the Emonitor software to set up many different measurement
definitions for data collection at a location. These can include magnitude,
spectrum, time waveform, and numeric measurements. You can then select the
measurement definitions you want to load to the data collector by creating a list
of those measurement definitions. When you want to load the data collector, the
Emonitor software builds a load file containing the measurement definitions in
the list.
The Emonitor software combines measurement definitions at each location to
make data collection more efficient. This lets you to collect two or more
measurements automatically, without having to start each measurement
separately. The rules for combining measurement definitions depend on several
factors. In general, however, the Emonitor software can combine measurement
definitions at the same location when these values are the same:
• Measurement units (part of the measurement definition)
• Measurement filter (part of the measurement definition)
• Transducer calibration and input type (from the transducer specification
used in the measurement definition’s collection specification)
In addition, there are some specialized cases that allow or prevent the Emonitor
software from combining measurement definitions from the same location when
they meet the above conditions.
Table 36 - Collection specifications for voltage measurement definition
Transducer Window Signal Detection Fmax Lines Phase Order Norm? Averages
Voltage Hanning RMS 2 kHz 400 No No 4 linear
Voltage DC Rectangular None 2 kHz 400 No No 4 linear
TIP The `Voltage’ transducer is for Volts AC. The `Voltage DC’ transducer
is for Volts DC.
Table 37 - Transducer specifications in voltage collection specification
Name Base Unit Input Type Units Calibration Value DC Offset
Voltage Voltage AC Coupled V 1000 0
Voltage DC Voltage DC Coupled Vdc 1000 0