Download RTDAQ Real-Time Data Acquisition Software

Section 10. Utilities
Assume that two or more conditional Output Arrays with unique Output Array
IDs compose a test period, followed by an unconditional Output Array that
defines the end of a test. The unconditional "end of test" Output Array is at the
end of each test, but the conditional Output Arrays may or may not be present.
The data file is comprised of several of these tests.
As an example, let's look at a vehicle test application. The start of the test is
when the vehicle is turned on, and the end of the test is when the vehicle is
turned off. The conditional output arrays could be:
•
monitoring the engine temperature and outputting data to a unique array
when the temperature exceeds a limit
•
outputting data to a unique array when the brakes are applied
•
outputting data when engine RPM exceeds a limit
The unconditional array data (the stop condition) would be output to a unique
array when the engine is turned off. By processing the data with Split using
the C option, the data collected during each test could be merged on to one
line, with blanks inserted if a set of data didn't exist (e.g., if the engine
temperature never exceeded the defined limit).
•
An Input File must be set up for each array ID in the test. The first Input
File is configured on the Input File tab that appears when you open Split.
Additional Input Files are added by choosing Edit | Add Data File from the
Split menu. The same data file will be used as the Input File for each
array.
•
Type in the array ID in the Copy field of the Input File tab for each array.
The array ID is the first element of a data file, so the line should read
1[123], where 123 is the actual array ID you want to process.
•
In the Select field, type in the number for each element (data value) you
want to be output in the report.
•
In the Stop Condition field, type in a "C," followed by the ID of your stop
condition array. If your "end of test" array was array ID 200, the Stop
Condition field would read: C,1[200]. This should be typed into the Stop
Condition fields of each array, including the "end of test" array.
Set up the Output File as you would for any Split process. If you are including
column headings, the arrays and elements will appear in the order they are
listed on the Input File tabs. That is, the first column will be Input File number
1, element number 1; the next column is Input File number 1, element number
2… Input File number 2, element number 1 follows in the column immediately
after the last element of Input File number 1.
10-29