Campbell Scientific CR9000X Measurement and Control System - Manual (Page 215)

Section 6. Data Table Declarations and Output Processing Instructions
Parameter
& Data Type Enter RAINFLOW PARAMETERS
Source
Variable The variable that is tested to determine which bin is selected
DataType A code to select the data storage format. Read more: See Section 4.2.4.4 Data Types
Constant Alpha Code Numeric Code Data Format
IEEE4 24 IEEE 4 byte floating point
FP2 7 Campbell Scientific 2 byte floating point
UINT2 21 2 Byte unsigned integer
Long 20 4 Byte Integer value
DisableVar
Constant,
Variable, or
A non-zero value will disable intermediate processing. Normally 0 is entered so all inputs are processed.
For example, when the disable variable is
≠0 the current input is not included in the histogram. The
histogram that is eventually stored includes the inputs that occurred while the disable variable was 0. The
Disable variable can be used to remove NANs from the results of the histogram (use "Source = NAN"
for the DisableVar expression). Special use case: Set equal to 12345 and the histogram will reset
after it outputs. Set equal to -12345 and the histogram will reset immediately.
Expression Value Result
0 Process current input
≠ 0 Do not process current input
MeanBins
Constant
The number of bins or subranges to sort the mean value of the signal during a stress strain cycle into.
Enter 1 to disregard the signal value and only sort by the amplitude of the signal. The width of each
subrange is equal to the HiLimit - LowLimit divided by the number of bins. The lowest bin’s minimum
value is the low limit and the highest bin’s maximum value is the High limit
AmpBins
Constant
The number of bins or subranges to sort the amplitude of a stress strain cycle into. The width of each
subrange is equal to the HiLimit - LowLimit divided by the number of bins.
LowLim
Constant
Enter the lowest input signal anticipated. Used for the floor of the lowest Mean Range. The difference
between the LowLimit and UpLimit is divided by the # of Amp Bins to get the Amp Bin ranges.
UpperLim
Constant
Enter the highest input signal anticipated. Used for the ceiling of the highest Mean Range. The
difference between the LowLimit and UpLimit is divided by the # of Amp Bins to get the Amp Bin
ranges.
MinAmp
Constant
The minimum amplitude that a stress strain cycle must have to be counted.
Form The Form code is 3 digits - ABC
Constant Code Form
A = 0 Reset histogram after each output.
A = 1 Do not reset histogram.
B = 0 Divide bins by total count.
B = 1 Output total in each bin.
C = 0 Open form. Include outside range values in end bins.
C = 1 Closed form. Exclude values outside range.
101 means: Do not reset. Divide bins by total count. Closed form.
SampleFieldCal
This instruction stores the most recent value(s) in the FieldCal file to a data
table. Normally, the NewFieldCal function is used as the trigger in the
DataTable instruction to trigger the Table output when a new FieldCal function
has been performed. See the FieldCal in Section 9.2 Datalogger
Status/Control for program example.
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