Mitsubishi Electric MELSEC iQ-R Series - Twos Complement of 16-Bit Binary Data (Sign Inversion)

6 BASIC INSTRUCTIONS
6.6 Data Conversion Instructions
467
6
Two's complement of 16-bit binary data (sign inversion)
NEG(P)
Invert the sign of 16-bit binary device.
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Processing details
• These instructions invert 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.
Ladder ST
ENO:=NEG(EN,d);
ENO:=NEGP(EN,d);
FBD/LD
Instruction Execution condition
NEG
NEGP
Operand Description Range Data type Data type (label)
(d) Device where the data subjected to two's complement is
stored
 16-bit signed binary ANY16
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(d)         
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(d)
EN ENO
d
1
(d)
(d)
b15 b0
101 10 0101 10 01010
b15 b0
010 01 1010 01 10110
101 10 0101 10 01010
000 00 0000 00 00000
-
 -21846
 21846
Before execution
Sign conversion
After execution