Campbell Scientific CR5000 Measurement and Control Module - Manual (Page 105)

Section 6. Data Table Declarations and Output Processing Instructions
6-11
Parameter
& Data Type Enter
StatusComma
nd
Constant
The StatusCommand specifies the type of information requested from the
transmitter.
Code Description Array Dim Required
0 Read time 4
1 Status 13
2 Last message status 14
3 Transmit random message 1
4 Read error register 10
5 Reset error register 1
6 Return transmitter to online mode 1
6.4 Output Processing Instructions
Average (Reps, Source, DataType, DisableVar)
This instruction stores the average value over the output interval for the source
variable or each element of the array specified.
Parameter
& Data Type Enter
Reps
Constant
The number of averages to calculate. When Reps is greater than one, the source must be
an array.
Source
Variable
The name of the Variable that is to be averaged.
DataType A code to select the data storage format.
Constant Alpha Code Numeric Code Data Format
IEEE4 24 IEEE 4 byte floating point
FP2 7 Campbell Scientific 2 byte floating point
DisableVar
Constant,
Variable, or
Expression
A non-zero value will disable intermediate processing. Normally 0 is entered so all inputs
are processed. For example, in the Average instruction, when the disable variable is
≠
0
the current input is not included in the average. The average that is eventually stored is
the average of the inputs that occurred while the disable variable was 0.
Value
Result
0 Process current input
≠
0 Do not process current input
Covariance (NumVals, Source, DataType, DisableVar, NumCov)
Calculates the covariance of values in an array over time. The Covariance of
X and Y is calculated as:
( )
Cov X Y
X Y
n
X Y
n
i i
i
n
i
i
n
i
i
n
( , )
=
⋅
−
⋅
= = =
∑ ∑ ∑
1 1 1
2