Two's Complement Of 16-Bit Binary Data (Sign Inversion) - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

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

NEG(P)
These instructions invert the sign of the 16-bit binary data in the device specified by (d), and store the resultant data in the
device specified by (d).
Ladder diagram
(d)
FBD/LD
EN ENO
d
Setting data
■Descriptions, ranges, and data types
Operand Description
(d) Head device for storing the data that performs two's
complement
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(d)
Processing details
• These instructions invert the sign of the 16-bit binary data in the device specified by (d), and store the resultant data in the
device specified by (d).
• They are used when a positive or negative sign is to be inverted.
b15
Before execution (d)
1
Sign conversion
-
b15
After execution (d)
Precautions
Note that data is inverted in every operation cycle in a continuous operation type (NEG) instruction.
Operation error
There is no operation error.
7 BASIC INSTRUCTIONS
324
7.5 Data Conversion Instructions
Word
T, ST, C, D, W,
SD, SW, R

1 0 1 0 1 0 1 0
0 0 0 0 0 0 0 0
1 0 1 0 1 0 1 0
0 1 0 1 0 1 0 1
Structured text
ENO:=NEG(EN,d);
ENO:=NEGP(EN,d);
Range
-32768 to +32767


Double word Indirect
U\G Z LC
  
∙∙∙
1 0 1 0 1 0 1
0 0 0 0 0 0 0
1 0 1 0 1 0 1
∙∙∙
0 1 0 1 0 1 1
Data type
16-bit signed binary
Bit
Bit
Constant
specification
LZ K, H
  
b0
∙∙∙ -21846
0
0
0
b0
0 ∙∙∙ 21846
Data type (label)
ANY16
BOOL
BOOL
Others
E $
  