Mitsubishi MELSEC iQ-F FX5 series, Programming Manual, Page: 437 / 888

7 APPLICATION INSTRUCTION
7.7 Real Number Instruction
435
7
Converting decimal floating point to binary floating point
DEBIN(P)
These instructions convert the decimal floating point specified by (s) to the binary floating point, and store the converted data
in the device specified by (d).
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
Processing details
• These instructions convert the decimal floating point specified by (s) to the binary floating point, and store the converted
data in the device specified by (d).
• The table below shows the related devices.
Ladder diagram Structured text
ENO:=DEBIN(EN,s,d);
ENO:= DEBINP(EN,s,d);
Operand Description Range Data type Data type (label)
(s) Head device number storing decimal floating-point data

Single-precision real number
(decimal) Single-precision real number
(decimal)
(d) Device number storing converted binary floating-point data

Single-precision real number
(binary) Single-precision real number
(binary)
Operand Bit Word Double word Indirect
specification Constant Others
X, Y, M, L,
SM, F, B, SB U

\G

T, ST,
C, LC T, ST, C, D,
W, SD, SW, R U

\G

Z LC LZ K, H E $
(s)
            
(d)
            
Device Name Description
Condition Operation
SM700 Carry The absolute value of the operation result

2
128
The value of (d) is the maximum value (2
128
) of 32-bit real
numbers and the carry flag SM700 turns on.
SM8020 Zero The operation result is true "0".
(The mantissa part is "0"). The zero flag SM8020 turns on.
SM8021 Borrow The absolute value of the operation result < 2
-126
The value of (d) is the minimum value (2
-126
) of 32-bit real
numbers and the borrow flag SM8021 turns on.
SM8022 Carry The absolute value of the operation result

2
128
The value of (d) is the maximum value (2
128
) of 32-bit real
numbers and the carry flag SM8022 turns on.
(s) (d)
b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

10
b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
(d)+1 (d)
(s)+1 (s)
(s)
(s)+1
High order Low order
Mantissa part (23 bits)
Low order
High order
Mantissa part Exponent part
Exponent part (8 bits)
Sign (1 bit)