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

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

NEG(P)
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
Invert the sign of 16-bit binary device.
Ladder
(d)
FBD/LD
EN ENO
d
■Execution condition
Instruction
NEG
NEGP
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
Operand Bit
X, Y, M, L, J\
SM, F, B, SB,
FX, FY
 
(d)
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.
b15
Before execution (d)
1 0 1
1 0 0 0
Sign conversion
1 0 1
-
b15
After execution (d)
0 1 0
RnSFCPU RnSFCPU
(Standard) (Safety)
Execution condition
Word
T, ST, C, D, W, U\G, J\,
SD, SW, FD, R, U3E\(H)G
ZR, RD
 
∙∙∙
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
ST
ENO:=NEG(EN,d);
ENO:=NEGP(EN,d);
Range Data type
 16-bit signed binary

Bit
 Bit
Double word Indirect
Z LT, LST, LZ
LC
  
b0
0 1 0 1 0 ∙∙∙ -21846
0 0 0 0 0
0 1 0 1 0
b0
∙∙∙ 21846
1 0 1 1 0
Data type (label)
ANY16
BOOL
BOOL
Constant
specification
K, H E $
   
6 BASIC INSTRUCTIONS
6.6 Data Conversion Instructions
6
Others

467