539
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
20 Positioning Control – FNC150 to FNC159
20.8 FNC159 – DRVA / Drive to Absolute
11
FN
C30-
FN
C39
R
o
ta
tion and
Sh
ift
12
FNC
4
0
-FNC49
D
a
ta
Op
e
ra
tio
n
13
FNC5
0
-FNC5
9
H
igh Speed
Pr
ocessi
ng
14
FM
C6
0
-F
NC6
9
H
and
y
In
st
ru
cti
o
n
15
FNC7
0
-FNC7
9
Ex
te
rn
a
l F
X
I
/O
D
evi
ce
16
FNC8
0
-FNC8
9
Ext
e
rnal
FX
D
evi
ce
17
F
N
C1
00
-F
NC
10
9
Da
ta
Tr
ansf
e
r 2
18
FN
C
110-FN
C
13
9
Fl
oat
ing P
o
in
t
19
FN
C
140-FN
C
149
Da
ta
O
per
at
io
n
2
20
FN
C
15
0-F
N
C
159
P
o
si
tioni
ng
C
ont
ro
l
S
2 : When not using a special high speed output adapter in an FX
3U
PLC or when using an FX
3UC
PLC,
specify a transistor output number.
When using a special high speed output adapter in an FX
3U
PLC, specify the following output numbers.
S
3 : "D
.b" cannot be indexed with index registers (V and Z).
Explanation of function and operation
Caution on write during RUN
Avoid write during RUN while DRVA (FNC159) instruction is executed (that is, while pulses are output).
Note that the PLC decelerates and stops pulse output if write during RUN is executed to a circuit block
including FNC159 instruction while pulses are output.
Special high speed output adapter No.
Pulse output
Rotation direction output
No. 1 (1st unit)
=For Y000
Y004
=For Y001
Y005
No. 2 (2nd unit)
=For Y002
Y006
=For Y003
Y007
D
1
D
1
D
1
D
1
Command
input
FNC159
DRVA
S
1
S
2
D
1
D
2