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20 Applied Instructions (Positioning Control)
20.4 DABS / Absolute Current Value Read
525
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
11
Appl
ied
 In
stru
cti
ons 
(D
ata O
per
at
io
n)
12
Ap
plied
 Instru
ctio
ns 
(High S
peed 
Process
ing)
13
App
lied Instr
ucti
ons 
(Handy
 
Instruction)
14
Ap
pl
ied In
struct
ions 
(External FX I/O
 
D
evice)
15
Appl
ied
 Instru
cti
ons
 
(External
 Dev
ice 
(op
tional
 dev
ice)
)
16
App
lie
d Instr
uction
(E
xter
nal
 Devi
ce)
17
Ap
pl
ied Inst
ruct
io
ns 
(Dat
a T
ransf
er 2)
18
Appl
ied
 In
stru
cti
ons 
(Float
ing P
oin
t)
19
App
lie
d Instr
uction
(D
at
a Oper
at
ion 2)
20
App
lied Inst
ructi
ons 
(Pos
itioning 
Control)
20.4
DABS / Absolute Current Value Read
Outline
This instruction connects with our company's MR-J4…A, MR-J3…A, MR-J2(S)…A, or MR-H…A type servo
amplifier (with absolute position detecting function), and reads out the absolute position (ABS) data. The data
is read out in pulse converted value.
→ As for explanation of the instruction, see the positioning control manual.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
Function and operation explanation
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
DABS
32 bits
Continuous
DABS(EN,s,d1,d2);
Variable
Description
Data type
Input
variable
EN
Execution condition
Bit
Head device for entering the output signal for absolute value (ABS) data
from the servo amplifier (3 points occupied).
Bit
Output
variable
ENO
Execution state
Bit
Head device for issuing the control signal for absolute value (ABS) data to
the servo amplifier (3 points occupied).
Bit
Storing destination device of absolute value (ABS) data (32-bit value)
ANY32
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
S2
z
S1
z
z
S2
z
z
z
z z z z
S3
S4
z
z
DABS
EN
s
ENO
d1
d2
DABS
EN
s
ENO
d1
d2
Storing destination device of absolute value (ABS)
data
Head device for entering the output signal 
for absolute value (ABS) data from the 
servo amplifier
Command 
input
Head device for issuing the control signal for absolute 
value (ABS) data to the servo amplifier