Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

Page: 469 / 2110

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 RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(d)
EN ENO
d
1
(d)
(d)
∙∙∙ b15 b0
1 0 1 1 0 0 1 0 1 1 0 0 1 0 1 0
∙∙∙ b15 b0
0 1 0 0 1 1 0 1 0 0 1 1 0 1 1 0
1 0 1 1 0 0 1 0 1 1 0 0 1 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
-
∙∙∙ -21846
∙∙∙ 21846
Before execution
Sign conversion
After execution