SECTION 10. PROCESSING INSTRUCTIONS
10-5
05:
FP
Offset 2
[B2]
06:
FP
Multiplier 3
[A3]
07:
FP
Offset 3
[B3]
08:
FP
Multiplier 4
[A4]
09:
FP
Offset 4
[B4]
Input locations altered:
4
*** 54 BLOCK MOVE ***
FUNCTION
Executes a "block move" of data in input
locations. Parameters specify the number of
values to move, the source, source step,
destination, and destination step. The "step"
parameters designate the increment of the
source and destination input locations for each
value that is moved. For example, a "source
step" of 2 and a "destination step" of 1 will move
data from every other input location to a
contiguous block of input locations.
PARAM.
DATA
NUMBER
TYPE
DESCRIPTION
01:
4
Number of values to
move
02:
4
1st source location
03:
2
Step of source
04:
4
1st destination location
05:
2
Step of destination
Input locations altered: Number of values of
move
*** 55 5TH ORDER POLYNOMIAL ***
FUNCTION
Evaluate a 5th order polynomial of the form
F(X)=C0+C1X+C2X
2
+C3X
3
+C4X
4
+C5X
5
where C0 through C5 are the coefficients for the
argument X raised to the zero through fifth
power, respectively. The magnitude of the user
entered coefficient is limited to a range of
±
.00001 to
±
99999. Polynomials with
coefficients outside this range can be modified
by pre-scaling the X value by an appropriate
factor to place the coefficients within the entry
range. Pre-scaling can also be used to modify
coefficients which are very close to 0 to
increase the number of significant digits.
PARAM.
DATA
NUMBER
TYPE
DESCRIPTION
01:
2
Repetitions
[REPS]
02:
4
Starting input location
for X
[X]
03:
4
Dest. input location for
F(X)
[F(X) or Z]
04:
FP
C0 coefficient
[C0]
05:
FP
C1 coefficient
[C1]
06:
FP
C2 coefficient
[C2]
07:
FP
C3 coefficient
[C3]
08:
FP
C4 coefficient
[C4]
09:
FP
C5 coefficient
[C5]
Input locations altered: 1 per repetition
*** 56 SATURATION VAPOR PRESSURE ***
FUNCTION
Calculate saturation vapor pressure (over water
SVPW) in kilopascals from the air temperature
(
°
C) and place it in an input location. The
algorithm for obtaining SVPW from air
temperature (
°
C) is taken from: Lowe, Paul R.:
1977, “An approximating polynomial for
computation of saturation vapor pressure,”
J.
Appl. Meteor, 16
, 100-103.
Saturation vapor pressure over ice (SVPI) in
kilopascals for a 0
°
C to -50
°
C range can be
obtained using Instruction 55 and the
relationship
SVPI = -.00486 + .85471 X + .2441 X
2
where X is the SVPW derived by Instruction 56.
This relationship was derived by Campbell
Scientific from the equations for the SVPW and
the SVPI given in Lowe's paper.
PARAM.
DATA
NUMBER
TYPE
DESCRIPTION
01:
4
Input location of air
temperature
°
C
[TEMP.]
02:
4
Destination input
location for saturated
vapor pressure
[VP or Z]
Input locations altered: 1
Содержание CR510
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Страница 176: ...APPENDIX A GLOSSARY A 4 This is a blank page ...
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Страница 188: ...APPENDIX D DATALOGGER INITIATED COMMUNICATIONS D 4 This is a blank page ...
Страница 196: ...APPENDIX F MODBUS ON THE CR10 X AND CR510 F 4 This is a blank page ...
Страница 197: ...APPENDIX G TD OPERATING SYSTEM ADDENDUM FOR CR510 CR10X AND CR23X MANUALS ...
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