Справочник Пользователя для Mitsubishi Electronics FXCPU
20 Applied Instructions (Positioning Control)
20.5 ZRN / Zero Return
527
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)
20.5
ZRN / Zero Return
Outline
This instruction matches the mechanical position and the current value register in the PLC by zero return.
Please use DSZR when DOG search function is necessary.
Please use DSZR when DOG search function is necessary.
→ As for explanation of the instruction, see the positioning control manual.
→ As for cautions of use of high speed output special adapter, see the positioning control manual.
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
ZRN
16 bits
Continuous
ZRN(EN,s1,s2,s3,d);
DZRN
32 bits
Continuous
DZRN(EN,s1,s2,s3,d);
Variable
Description
Data type
16-bit
operation
32-bit
operation
Input
variable
variable
EN
Execution condition
Bit
Speed when starting to zero return
ANY16
ANY32
Creep speed
ANY16
ANY32
Device for entering the near-point signal (DOG)
Bit
Output
variable
variable
ENO
Execution state
Bit
Device for issuing pulse
Bit
Operand
type
Bit Devices
Word Devices
Others
System user
Digit designation
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
S3
S2
z z
z
z z
z
z
z
z z z z
S3
S2
z z
z
z z
z z z
z
S1
z
S4
z
ZRN
EN
s1
s1
ENO
d
s2
s3
s3
DZRN
EN
s1
s1
ENO
d
s2
s3
s3