Mitsubishi Electric M800VW Series Programming Manual page 229

M800V/M80V Series PLC Programming Manual (1/2)
8 Function Instructions
8.2 Arithmetic Operation Instructions
NEG, NEGP, DNEG, DNEGP: Complement of 2 of BIN 16-bit data and BIN 32-bit data (sign reversal)
Setting
Bit devices
data
X Y M L F
D
○ ○ ○ ○ ○
△ : This is not available with DNEG (P).
[Instruction symbol] [Execution condition]
NEG, DNEG
NEGP, DNEGP
 Setting data
Setting data
D Head No. of the device where the data for the complement of 2 operation is stored.
 Functions
NEG
 Reverses the sign of the 16-bit device designated by "D" and stores at the device designated by "D".
Before execution
D
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Sign conversion
−
After execution D
 Used when reversing positive and negative signs.
IB-1501667-B
Usable devices
B SB T SM V T C
○ ○ ○ ○ ○
Command
Command
Meaning
16 Bit
b15
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
b15
0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0
Con-
Word devices
stant
D R/ZR W SW SD Z K
○ ○ ○ ○ ○ △
b0
-21846
b0
21846
208
Digit
Pointer designa- Index
tion
H P
○ ○
indicates the signs NEG/DNEG
D
P D
Data type
BIN 16/32 bits