Mitsubishi Electric R32MTCPU - Signed 32-Bit Integer Value Conversion: LONG

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4 OPERATION CONTROL PROGRAMS
4.9 Type Conversions
Signed 32-bit integer value conversion: LONG
Setting data
■Usable data
: Usable
■Description, data type of result
Processing details
• The data specified with (S) is converted into a signed 32-bit integer value.
• The data range of (S) is -2147483648 to 2147483647.
• When (S) is a 64-bit floating-point type, its fractional portion is rounded down before conversion is made.
• If (S) is a 32-bit integer type, its value is returned unchanged, with no conversion processing performed.
Operation error
An operation error will occur if:
• The (S) data is outside the range -2147483648 to 2147483647.
• (S) is an indirectly specified device and its device No. is outside the range.
Program example
■Program which converts the data of D0 into a signed 32-bit integer value and substitutes the
result to #0L
Format Number of basic steps Usable steps
F/FS G
LONG(S) 4 
Setting
data
Usable Data
Bit
device
Word device Constant Calculation
expression
Bit
conditional
expression
Comparison
conditional
expression
16-bit
integer
type
32-bit
integer
type (L)
64-bit
floating
point
type (F)
16-bit
integer
type
(K/H)
32-bit
integer
type
(K/H, L)
64-bit
floating
point
type (K)
(S)   
Setting data Description Data type of result
(S) Data which will be converted into signed 32-bit integer value 32-bit integer type
#0L = LONG(D0)
K-1L
#1 #0
#0L
(HFFFFFFFF)
D0 K-1
(HFFFF)