Справочник Пользователя для Mitsubishi Electronics FXCPU
12 Applied Instructions (High Speed Processing)
303
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
11
Appl
ied
ied
In
stru
cti
cti
ons
(D
ata O
per
at
io
n)
12
Ap
plied
Instru
ctio
ns
Instru
ctio
ns
(High S
peed
Process
ing)
13
App
lied Instr
lied Instr
ucti
ons
(Handy
Instruction)
14
Ap
pl
ied In
struct
struct
ions
(External FX I/O
D
evice)
15
Appl
ied
ied
Instru
cti
cti
ons
(External
Dev
ice
ice
(op
tional
dev
ice)
)
tional
dev
ice)
)
16
App
lie
lie
d Instr
uction
s
s
(E
xter
nal
nal
Devi
ce)
17
Ap
pl
ied Inst
ruct
io
io
ns
(Dat
a T
ransf
er 2)
a T
ransf
er 2)
18
Appl
ied
ied
In
stru
cti
cti
ons
(Float
ing P
oin
oin
t)
19
App
lie
lie
d Instr
uction
s
s
(D
at
a Oper
at
ion 2)
20
App
lied Inst
lied Inst
ructi
ons
ons
(Pos
itioning
Control)
12.9 PWM / Pulse Width Modulation
12.9
PWM / Pulse Width Modulation
Outline
This instruction outputs pulses with a specified period and ON duration.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
Function and operation explanation
1. 16-bit operation (PWM)
Pulses whose ON pulse width (ms) is specified by
are output in periods (ms) specified by
to the
device specified by
• Specify the pulse width "t" in
.
Allowable setting range: 0 to 32,767ms
• Specify the period "T0" in
Allowable setting range: 1 to 32,767ms
• Specify the output (Y) number from which pulses are to be output in
.
Allowable setting range: 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
PWM
16 bits
Continuous
PWM(EN, s1, s2, d);
Variable
Description
Data type
Input
variable
variable
EN
Execution condition
Bit
Pulse width (ms) data or word device storing the data
ANY16
Period data (ms) or word device storing the data
ANY16
Output
variable
variable
ENO
Execution state
Bit
Device (Y) from which pulses are to be output
Bit
Operand
type
Bit Devices
Word Devices
Others
System User
Digit Specification System User
Special
Unit
Index
Cons
tant
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
S2
S3
z z
z
z z
z
z
z
z z z z
S2
S3
z z
z
z z
S1
z
PWM
EN
s1
s2
s1
s2
ENO
d
Command
input
input
t
T
0
Pulse width
Period
PWM
EN
s1
s2
ENO
d
t
T
0
d
Device (Y) from which
pulses are to be output
pulses are to be output