Mitsubishi MELSEC iQ-F FX5 series User Manual

6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
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6
Subtracting 32-bit binary data
D-(P)(_U) instruction and DSUB(P)(_U) instruction can be used for subtraction of 32-bit binary data.
D-(P)(_U) [using two operands]
These instructions subtract the 16-bit binary data in the device specified by (d) and the 16-bit binary data in the device
specified by (s), and store the result in the device specified by (d).
Setting data
■Descriptions, ranges, and data types
■Applicable devices
Processing details
• These instructions subtract the 32-bit binary data in the device specified by (d) and the 32-bit binary data in the device
specified by (s), and store the subtraction result in the device specified by (d).
• When underflow or overflow occurs in the operation result, the following processing is executed. In this case, the carry flag
(SM700, SM8022) does not turn ON.
Operation error
There is no operation error.
Ladder diagram Structured text
Not supported
Operand Description Range Data type Data type (label)
(s) D-(P) Subtrahend data or the head device where the
data to be subtracted from another is stored
-2147483648 to +2147483647 32-bit signed binary ANY32_S
D-(P)_U 0 to 4294967295 32-bit unsigned binary ANY32_U
(d) D-(P) Head device where the data from which
another is to be subtracted is stored
-2147483648 to +2147483647 32-bit signed binary ANY32_S
D-(P)_U 0 to 4294967295 32-bit unsigned binary ANY32_U
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)       
(s) (d)
b0
567890 (BIN)
(d)
123456 (BIN) 444434 (BIN)
-
··· ···
(d)+1
(s)
(s)+1
(d)
(d)+1
b31 b16 b15
b0
··· ···
b31 b16 b15
b0
··· ···
b31 b16 b15
- →
-
→
- →
K0 K4294967295 K1
(00000000H) (FFFFFFFFH) (00000001H)
- →
K2147483647 K-2 K-2147483647
K0 K1 K4294967295
K-2147483648 K2 K2147483646
(00000000H) (00000001H) (FFFFFFFFH)
(80000000H) (00000002H) (7FFFFFFEH)
(FFFFFFFEH) (80000001H)(7FFFFFFFH)
In case of D-(P)
Because the highest bit is 1, the value is negative.
In case of D-(P)(_U)
Because the highest bit is 0, the value is positive.

Mitsubishi MELSEC iQ-F FX5 series Specifications

General

Brand	Mitsubishi
Model	MELSEC iQ-F FX5 series
Category	Controller
Language	English