Subtracting 32-Bit Binary Data - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

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).
Ladder diagram
(s) (d)
FBD/LD
Not supported.
Setting data
■Descriptions, ranges, and data types
Operand Description
(s) D-(P) Subtrahend data or the head device where the
data to be subtracted from another is stored
D-(P)_U
(d) D-(P) Head device where the data from which
another is to be subtracted is stored
D-(P)_U
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(s)

(d)
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).
(d)
(d)+1 (s)+1
b31 b16 b15 b0 b31
··· ··· ···
123456 (BIN)
567890 (BIN) -
• 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.
In case of D-(P)
(d)
(d)+1 (s)+1
b15 b0 b15
···
2
2147483648 (BIN) -
(d)
(d)+1 (s)+1
b15 b0 b15
···
-2
2147483647 (BIN) -
In case of D-(P)(_U)
(d)
(d)+1 (s)+1
b15 b0 b15
···
0 (BIN) - 1
(d)
(d)+1 (s)+1
b15 b0 b15
···
0 (BIN) - 4294967295
Word
T, ST, C, D, W, U\G
SD, SW, R
 
 
(s) (d)
(d)+1
b16 b15 b0 b31 b16 b15
··· ···
444434 (BIN)
(s) (d)
(d)+1
b0 b15
··· ···
(BIN) 2147483646 (BIN)
(s) (d)
(d)+1
b0 b15
··· ···
(BIN) -2147483647 (BIN)
(s) (d)
(d)+1
b0 b15
··· ···
(BIN) 4294967295 (BIN)
(s) (d)
(d)+1
b0 b15
··· ···
(BIN) 1 (BIN)
Structured text
Not supported
Range
-2147483648 to +2147483647
0 to 4294967295
-2147483648 to +2147483647
0 to 4294967295
Double word Indirect
specification
Z LC LZ
   
   
b0
···
b0
b0
b0
b0
7.2 Arithmetic Operation Instructions
Data type Data type (label)
32-bit signed binary ANY32_S
32-bit unsigned binary ANY32_U
32-bit signed binary ANY32_S
32-bit unsigned binary ANY32_U
Constant
K, H E $
  
  
7 BASIC INSTRUCTIONS
7
Others


199