Mitsubishi A1SD51S, Руководство по программированию

Страница: 193 / 688

11 - 23 11 - 23
MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
CINT
Function
Convert INTeger
• Converts a single precision real number or a double precision real number into an integer.
CINT ( <arithmetic expression> )
Syntax
arithmetic expression • • • • Specify a single precision real number or a double
precision real number to convert into an integer.
A%=CINT(B!) • • • • Converts a single precision real number B! into an
integer and assigns it to A%.
Examples
C%=CINT(D#) • • • • Converts a double precision real number D# into an
integer and assigns it to C%.
Description
• The CINT function converts the value of <arithmetic expression> into an integer value and
returns the maximum integer that does not exceed the value of <arithmetic expression>.
• The fraction part is rounded down if a positive value is specified, and the fraction part is
rounded up if a negative number is specified.
Example
5.689
1.031
2.999 5
1
2 -3.84
-1.2639
-1.9999
-4
-2
-2
• An “Over flow” error occurs if the result value is out of the range of 32768 to 32767.
Use the INT function to convert a value over 32768 into an integer value.
Program Example
10 ' Converts a single precision or a double precision real number into an integer
20 A!=7.15 : ' Defines a single precision real number
30 B#=1.598421# : ' Defines a double precision real number
40 A%=CINT(A!) : ' Converts a single precision real number to
an integer
50 B%=CINT(B#) : ' Converts a double precision real number
to an integer
60 PRINT "A!=";A!,"B#=";B# : ' Value before conversion
70 PRINT "A%=";A%,"B%=";B% : ' Value after conversion
80 END
RUN
A!= 7.15 B#= 1.598421
A%= 7 B%= 1
OK