abbreviation of the data process that outputs the data to storage. A list of these abbreviations
follows in Data processing abbreviations(p. 84).
If a field is an element of an array, the field name will be followed by a indices within parentheses
that identify the element in the array. For example, a variable named Values, which is declared
as a two-by-two array in the data logger program, will be represented by four field names:
Values(1,1), Values(1,2), Values(2,1), and Values(2,2). There will be one value in
the second header row for each scalar value defined by the table.
If the default field names are not acceptable to the programmer, the FieldNames() instruction
can be used in the CRBasic program to customize the names. TIMESTAMP, RECORD, BattV_
Avg, PTemp_C_Avg, and Temp_C_Avg are the default field names in the previous Example
data(p. 82).
The third header row identifies engineering units for that field. These units are declared at the
beginning of a CRBasic program using the optional Units() declaration. In Short Cut, units are
chosen when sensors or measurements are added. Units are strictly for documentation. The data
logger does not make use of declared units, nor does it check their accuracy.
The fourth header row reports abbreviations of the data process used to produce the field of
data.
Table 16-5: Data processing abbreviations
Data processing name Abbreviation
Totalize
Tot
Average
Avg
Maximum
Max
Minimum
Min
Sample at Max or Min
SMM
Standard Deviation
Std
Moment
MMT
Sample No abbreviation
Histogram
Hst
Histogram4D
H4D
FFT
FFT
Covariance
Cov
Level Crossing
LCr
16. Working with data84
To Next Page
Loading...
