Floating-Point Value Conversion 32-Bit Into 64-Bit: Dflt - Mitsubishi Electric R16MTCPU Programming Manual

Floating-point value conversion 32-bit into 64-bit: DFLT

Format
DFLT(S)
Setting data
■Usable Data
: Usable
Setting Usable Data
data
Bit Word device
device
16-bit
integer
type
 
(S)
*1 The data is handled as the 32-bit integer type on the program, but store the 32-bit floating-point data in the device.
■Description, data type of result
Setting data Description
(S) Data which will be converted into 64-bit floating-point value
Processing details
• The 32-bit floating-point (single precision real number) value stored in the device specified with (S) is converted into the 64-
bit floating-point (double precision real number) value. Convertible data ranges are shown below.
38 -38
-3.40  10 to -1.18  10
• The 64-bit floating-point type is used as the data of floating-point type in the Motion SFC program. Use this instruction to
input the data of 32-bit floating-point type from the external devices.
Operation error
An operation error will occur if:
• The (S) data is not a valid 32-bit floating-point type.
Program example
■Program which converts the 32-bit floating-point value data of D2000L into 64-bit floating-
point value data and substitutes the result to #0F
#0F = DFLT(D2000L)
#3 #2
#0F K-1.0
Number of basic steps
4
Constant
32-bit 64-bit 16-bit
integer floating integer
type (L) point type
type (F) (K/H)
*1
  
-38
, 0.0, 1.18  10 to 3.40  10
#1 #0
Usable steps
F/FS

Calculation
expression
32-bit 64-bit
integer floating
type point
(K/H, L) type (K)
  
38
(single precision real number)
D2001 D2000
D2000L K-1.0
4 OPERATION CONTROL PROGRAMS
G

Bit Comparison
conditional conditional
expression expression
 
Data type of result
64-bit floating-point type
175
4.9 Type Conversions
4