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FX
3G
/FX
3U
/FX
3UC
 Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.3 FNC 62 – ABSD / Absolute Drum Sequencer
11
FN
C
30
-FN
C
39
R
otati
on and 
Shi
ft
12
FNC4
0-F
NC4
9
D
ata O
per
ati
on
13
FN
C
50-FN
C
59
H
igh S
pe
ed 
P
rocessing
14
FM
C
60-FN
C
69
H
andy 
In
st
ru
ct
ion
15
FNC7
0-F
NC7
9
Ex
ter
nal FX
 I/O
 
D
evice
16
FN
C
80-FN
C
89
Ext
ernal
 FX 
De
vic
e
17
FN
C
100-
FN
C
10
9
Da
ta
 
Transf
er 2
18
FN
C
110-
FN
C
139
Floati
ng Poi
nt
19
FN
C
14
0-F
N
C
149
Da
ta
 
O
per
at
ion 2
20
FN
C
150-
FN
C
159
Posit
ioning 
C
ont
ro
l
14.3
FNC 62 – ABSD / Absolute Drum Sequencer
Outline
This instruction creates many output patterns corresponding to the current value of a counter.
1. Instruction format
2. Set data
3. Applicable devices
S1:  "D….b" is available only in FX
3U
 and FX
3UC
 PLCs. However, index modifiers (V and Z) are not available.  
S2:  This function is supported only in FX
3U
/FX
3UC
 PLCs.
Explanation of function and operation
1. 16-bit operation (ABSD)
In this example, outputs are controlled to ON or OFF by one rotation (0 to 360
° using the rotation angle signal of 
1
°/pulse).
The current value 
 of the counter is compared with the data table with "n" lines starting from 
 (which
occupies "n" lines 
× 2 devices), and consecutive "n" outputs starting from 
 are controlled to ON or OFF during
one rotation.
Operand type
Description
Data type
Head device number storing the data table (with rising and faling point data)
16- or 32-bit binary
Counter number for monitoring the current value compared with the data table 
16- or 32-bit binary
Head bit device number to be output
Bit
n
Number of lines in the table and the number of output bit devices
[1 
≤ n ≤ 64]
16-bit binary
Oper-
and 
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special 
Unit
Index
Con-
stant
Real 
Number
Charac-
ter String
Pointer
X Y M T C S D….b KnX KnY KnM KnS T C D R U…\G… V
Z Modify K H
E
"…"
P
3
3
3
3
3 3 3 3
S2
3
3
3
3 3
3
S1
3
n
3 3
FNC 62
ABSD
Mnemonic
Operation Condition
16-bit Instruction
 9 steps ABSD
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
D
 17 steps DABSD
Continuous
Operation
S
1
 ‚
  
S
1
  
S
2
  D
S
1
 ‚
  
S
1
  
S
2
S
2
 ‚
  D
  
D
1
  
S
2
  
D
1
  
S
1
  
D
1
   
D
Command
input
FNC 62
ABSD
n
S
‚
S
‚
D ‚
S
‚
X001
RST
X001
K360
Rotation angle signal of 1°/pulse
S
‚
S
‚