Two's Complement Of 32-Bit Binary Data (Sign Inversion) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Two's complement of 32-bit binary data (sign inversion)

DNEG
This instruction inverts the sign of 32-bit binary device.
ST
ENO:=DNEG(EN,d);
■Execution condition
Instruction
DNEG
Setting data
■Description, range, data type
Operand Description
(d) Start device where the data subjected to two's complement is stored
EN Execution condition
ENO Execution result
■Applicable devices/labels
Operand Bit
SB
(d)

Processing details
• This instruction inverts the sign of the 32-bit binary data in the device specified by (d) and store the inverted data in the
device specified by (d).
• The instructions are used to invert positive and negative signs.
b31
Before execution (d)
1 1 1
1
0 0 0
Sign conversion
1 1 1
-
b31
After execution (d)
0 0 0
Operation error
There is no operation error.
Execution condition
Word
RX, RY, LB SW
 
∙∙∙
1 1 1 1 0 1
0 0 0 0 0 0
1 1 1 1 0 1
∙∙∙
0 0 0 0 1 0
Range



G, RWw, RWr, LW

b0
0 0 1 0 0 ∙∙∙ -218460
0 0 0 0 0
0 0 1 0 0
b0
∙∙∙ 218460
1 1 1 0 0
Data type
ANY32
BOOL
BOOL
Constant
K, H

6 BASIC INSTRUCTIONS
6.3 Data Conversion Instructions
6
85