Section 7. Installation
189
PulseCountReset is needed in applications wherein two separate PulseCount()
instructions in separate scans measure the same pulse input terminal. While the
compiler does not allow multiple PulseCount() instructions in the same scan to
measure the same terminal, multiple scans using the same terminal are allowed.
PulseCount() information is not maintained globally, but for each individual
instruction occurrence. So, if a program needs to alternate between fast and slow
scan times, two separate scans can be used with logic to jump between them. If a
PulseCount() is used in both scans, then a PulseCountReset is used prior to
entering each scan.
7.7.1.6 Scaling Array
CRBasic example Scaling Array
(p. 189)
how to create and use a scaling array.
Several multipliers and offsets are entered at the beginning of the program and
then used by several measurement instructions throughout the program.
Scaling Array
'This program example demonstrates the use of a scaling array. An array of three
'temperatures are measured. The first is expressed as degrees Celsius, the second as
'Kelvin, and the third as degrees Fahrenheit.
'Declare viewable variables
Public
PTemp_C
Public
Temp_C(3)
Public
Count
'Declare scaling arrays as non-viewable variables
Dim
Mult(3)
Dim
Offset(3)
'Declare Output Table
DataTable
(Min_5,True,-1)
DataInterval
(0,5,Min,0)
Average
(1,PTemp_C,FP2,0)
Maximum
(1,PTemp_C,FP2,0,0)
Minimum
(1,PTemp_C,FP2,0,0)
Average
(3,Temp_C(),FP2,0)
Minimum
(3,Temp_C(1),FP2,0,0)
Maximum
(3,Temp_C(1),FP2,0,0)
EndTable
'Begin Program
BeginProg
'Load scaling array
Mult(1) = 1.0 : Offset(1) = 0
'Scales 1st thermocouple temperature to Celsius
Mult(2) = 1.0 : Offset(2) = 273.15
'Scales 2nd thermocouple temperature to Kelvin
Mult(3) = 1.8 : Offset(3) = 32
'Scales 3rd thermocouple temperature to Fahrenheit
Содержание CR3000 Micrologger
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Страница 200: ...Section 7 Installation 200 FIGURE 42 Running Average Frequency Response FIGURE 43 Running Average Signal Attenuation ...
Страница 485: ...Section 8 Operation 485 8 11 2 Data Display FIGURE 110 Keyboard and Display Displaying Data ...
Страница 487: ...Section 8 Operation 487 FIGURE 112 CR1000KD Real Time Custom ...
Страница 488: ...Section 8 Operation 488 8 11 2 3 Final Storage Data FIGURE 113 Keyboard and Display Final Storage Data ...
Страница 489: ...Section 8 Operation 489 8 11 3 Run Stop Program FIGURE 114 Keyboard and Display Run Stop Program ...
Страница 491: ...Section 8 Operation 491 FIGURE 116 Keyboard and Display File Edit ...
Страница 495: ...Section 8 Operation 495 Low power standby whenever possible Low power bus sets bus and modules to low power ...
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Страница 564: ...Section 11 Glossary 564 FIGURE 126 Relationships of Accuracy Precision and Resolution ...
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