Winco DPG-2145-001 - Manual (Page 34)

Manual 36526F DPG-21XX-00X Digital Controllers
Woodward 26
Engine Speed Data Collection
The engine speed data measured by the DPG and displayed in the Universal PST
chart recorder window is also recorded to a computer file. MPU_DATA00.csv is the
default file name used to save engine speed information. You can change the file
name by using the <Data File => button. The ―.csv‖ data files created to collect
engine speed data can be viewed with either a text editor or with Microsoft Excel. If
you load an engine speed data file into Microsoft Excel, then you can highlight the
column of data and use Excel’s quick graph button to create a line chart of the
data.
IMPORTANT: Do not open data files in another program that are currently being
used by Universal PST. Also be sure to close any open data files needed by
Universal PST before starting it.
The <Data File => button opens a dialog box allowing you to set the base file name
where chart recorder data will be saved. A two-digit suffix is automatically
appended to the file name that is given and serves the following purpose. Each
engine speed data file is considered full after recording 60,000 data points which is
approximately 10-12 minutes of data. The two-digit suffix is used to automatically
continue collecting data to new files with the same base file name but with
increasing numeric suffixes. The first 60,000 data points are saved in
filename00.csv and the next 60,000 data point are saved in filename01.csv, and so
on until a million data points are collected. This is to prevent each speed data file
from exceeding the 65,536-row limit of Microsoft Excel.
The <Data Reset> button is used to clear out the data collection buffer and
overwrite the zero suffixed data collection file. Data collection starts from the
beginning of filename00.txt where filename is the base file name previously used.
The progress bar shown to the right of the <Data Reset> button indicates how full
the complete set of data files is. A total of one million data points (approximately
3.5 hours of data) can be collected before the progress bar displays the message
―The Data File is FULL‖. In order to start recording data again without overwriting
previously collected data, use the <Data File => button to create a new base file
name in which to receive additional engine speed information.
The <Pause Chart> button stops chart recorder and Data File updates. After
pressing this button the <Continue> button is displayed. Press the <Continue>
button to turn the chart recorder back on and continue recording engine speed data
to the current target file.
Use the <View Table> button to return to the Table View display mode. Be sure to
open a new Data File before returning to Table View if the data already collected
needs to be saved. The active data file is automatically reset each time the Chart
View display mode becomes active.