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Absolute Position Detection System; Related Devices - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

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5.11

Absolute Position Detection System

With the use of the servo absolute position detection system, the positioning uses the current ABS value read-out (DABS)
instruction to read out the current value (absolute position (ABS) data) from the MR-J4A or MR-J3A servo amplifier.
The data is converted into pulse when being read.
DABS
This instruction reads the absolute position (ABS) data when the servo amplifier is connected. The data is converted into
pulse when being read.
Ladder
(s)
Setting data
■Description, range, data type
Operand
Description
(s)
First number of the device that inputs the absolute
position (ABS) data from the servo amplifier
(d1)
First number of the device that outputs the absolute
position (ABS) data control signal to the servo amplifier
(d2)
Absolute position (ABS) data (32-bit value) storage device
number
■Available device
Operand
Bit
X, Y, M, L, SM,
F, B, SB, S
(s)
(d1)
(d2)
*1 T, ST, C cannot be used.
Processing details
This instruction reads the absolute position (ABS) data when the servo amplifier is connected. The data is converted into
pulse when being read.

Related devices

The following lists the related special devices.
FX3 compatible
SM8029
SM8329
R: Read only, : Not supported
5 POSITIONING INSTRUCTION
154
5.11 Absolute Position Detection System
(d1) (d2)
Word
T, ST, C, D, W,
SD, SW, R
*1
*1
Name
Instruction execution complete flag
Instruction execution abnormal end flag
ST
ENO:=DABS(EN,s,d1,d2);
Range
Double word Indirect
U\G
Z
LC
Data type
Bit
Bit
32-bit signed binary
Constant
specification
LZ
K, H
High Speed I/O
Parameter
FBD/LD
EN
ENO
s
d1
d2
Data type (label)
ANYBIT_ARRAY
(Number of elements:3)
ANYBIT_ARRAY
(Number of elements:3)
ANY32
Others
E
$
R/W
Reference
R
Page 77
R

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