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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.3 FNC 62 – ABSD / Absolute Drum Sequencer
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 FX3U and FX3UC PLCs. However, index modifiers (V and Z) are not available.
S2: This function is supported only in FX
3G/FX3GC/FX3U/FX3UC PLCs.
S3: This function is supported only in FX
3U/FX3UC 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 falling 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
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
V Z Modify K H E "
"P
S2 S3
S1
n
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
nS
1
S
2
D
S
2
X001
RST
X001
K360
Rotation angle signal of 1°/pulse
S
2
S
2