Campbell-scientific CR9000X Measurement and Control System Manual de usuario Pagina 308

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Section 8. Processing and Math Instructions
Parameter
& Data Type
Enter
IIF PARAMETERS
Expression
The Variable or expression to test.
Expression or Value Result
Variable
0
True: return TrueValue
0
False: return FalseValue
TrueValue
Constant, Var
or Expression
The Value (or expression determining the value) to return if the test condition is true
FalseValue
Constant, Var
or Expression
The Value (or expression determining the value) to return if the test condition is False
IMP
The IMP function is used to perform a logical implication on two expressions.
Syntax
result = expression1 IMP expression2
Remarks
The following table illustrates how Result is determined:
If expression1 is And expression2 is The result is
True True True
True False False
True Null Null
False True True
False False True
False Null True
Null True True
Null False Null
Null Null Null
The IMP operator performs a bitwise comparison of identically positioned bits
in two numeric expressions and sets the corresponding bit in result according to
the following table:
8-22
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