Data Conversion Instructions; Two's Complement Of 16-Bit Binary Data (Sign Inversion) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

6.3

Data Conversion Instructions

Two's complement of 16-bit binary data (sign inversion)

NEG
Invert the sign of 16-bit binary device.
ST
ENO:=NEG(EN,d);
■Execution condition
Instruction
NEG
Setting data
■Description, range, data type
Operand Description
(d) 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 16-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.
b15
Before execution (d)
1
1
0
Sign conversion
1
-
b15
After execution (d)
0
Operation error
There is no operation error.
6 BASIC INSTRUCTIONS
84
6.3 Data Conversion Instructions
Execution condition
RX, RY, LB

∙∙∙
0 1 0 1 0 1 0 1
0 0 0 0 0 0 0 0
0 1 0 1 0 1 0 1
∙∙∙
1 0 1 0 1 0 1 0
Range



Word
SW

b0
0 1 0 1 0 1 0 ∙∙∙ -21846
0 0 0 0 0 0 0
0 1 0 1 0 1 0
b0
∙∙∙ 21846
1 0 1 0 1 1 0
Data type
ANY16
BOOL
BOOL
Constant
G, RWw, RWr, LW K, H
 