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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
20 Positioning Control – FNC150 to FNC159
20.8 FNC159 – DRVA / Drive to Absolute
11
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High-Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
S2 : When using a special high-speed output adapter for the pulse output destination in an FX3U PLC, the rotation
direction signal must be used by the following table output.
When using a built-in transistor output for the pulse output destination in an FX
3S/FX3G/FX3GC/FX3U/FX3UC
PLCs, the rotation direction signal must use transistor output.
S3:"D.b" is available only in FX
3U and FX3UC PLCs. However, index modifiers (V and Z) are not available.
S4 : This function is supported only in FX
3G/FX3GC/FX3U/FX3UC PLCs.
S5 : This function is supported only in FX
3U/FX3UC PLCs.
Explanation of function and operation
Caution on writing during RUN
During RUN, avoid writing while DRVA (FNC159) instruction is executed (that is, while pulses are output).
Note that if writing is executed during RUN to a circuit block including FNC159 instruction while pulses are output, the
PLC decelerates and stops pulse output.
Special high-speed output adapter No. Pulse output Rotation direction output
No. 1 (1st unit)
=Y000
=Y004
=Y001
=Y005
No. 2 (2nd unit)
=Y002
=Y006
=Y003
=Y007
D
1
D
2
D
1
D
2
D
1
D
2
D
1
D
2
Command
input
FNC159
DRVA
S
1
S
2
D
1
D
2