Справочник Пользователя для Mitsubishi Electronics FXCPU
9 Applied Instructions (Arithmetic and Logical Operation)
9.2 SUBP / Subtraction
171
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
1
O
utlin
e
e
2
Instruc
tion Li
st
3
Configurati
on of
Instruction
4
Ho
w t
o R
ea
d
Explanati
on of
Ins
truction
truction
s
5
B
asic
Instruction
6
Step Ladder
Instruct
ions
7
Ap
pl
ied Inst
ruct
io
io
ns
(Program Flow)
8
Appl
ied
ied
In
stru
cti
cti
ons
(Mov
e and
C
omp
are)
are)
9
App
lie
lie
d Instr
uction
s
s
(Ari
thm
eti
thm
eti
c and
Lo
gic
al O
per
at
ion)
10
App
lied Inst
lied Inst
ructi
ons
ons
(Rot
ati
ati
on and
Shift O
perati
on)
9.2
SUBP / Subtraction
Outline
This instruction executes subtraction using two values to obtain the result (A -B = C).
→ For the floating point subtraction instruction [DESUB], refer to Section 18.9.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX
3U(C)
FX
3G(C)
FX
3S
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD
ST
-
16 bits
Continuous
Use application functions (SUB(_E)) for 16-bit operation and continuous execution.
For details, refer to the following manual.
For details, refer to the following manual.
→ FX Structured Programming Manual [Application Functions]
SUBP
16 bits
Pulse
SUBP(EN,s1,s2,d);
DSUB
32 bits
Continuous
DSUB(EN,s1,s2,d);
DSUBP
32 bits
Pulse
DSUBP(EN,s1,s2,d);
Variable
Description
Data type
16-bit
operation
32-bit
operation
Input
variable
variable
EN
Execution condition
Bit
Data for subtraction or word device storing data
ANY16
ANY32
Data for subtraction or word device storing data
ANY16
ANY32
Output
variable
variable
ENO
Execution state
Bit
Word device storing the subtraction result
ANY16
ANY32
Operand
type
Bit Devices
Word Devices
Others
System User
Digit Specification
System
User
Special
Unit
Index
Constant
Real
Number
Character
String
Pointer
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modifier K
H
E
"
"
P
z
z
z
z z z z
S1
S2
z z
z
z
z
z
z
z
z z z z
S1
S2
z z
z
z
z
z
z
z z z z
S1
S2
z z
z
SUBP
EN
s1
s2
s1
s2
ENO
d
DSUB
EN
s1
s2
s1
s2
ENO
d
DSUBP
EN
s1
s2
s1
s2
ENO
d