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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
20.8 FNC159 – DRVA / Drive to Absolute
Outline
This instruction executes one-speed positioning by absolute drive. The movement distance from the zero point can be
specified.
→ For explanation of the instruction, refer to the Positioning Control Edition manual.
→ For cautions on using special high-speed output adapters,
refer to the Positioning Control Edition manual.
1. Instruction format
2. Set data
*1. Setting range: −32768 to +32767 for 16-bit operation
−999,999 to +999,999 for 32-bit operation
*2. Setting range: 10 to 32767 Hz for 16-bit operation
Following range for 32-bit operation
3. Applicable devices
S1 : Specify Y000, Y001 or Y002
*3
transistor output from main unit, or specify Y000, Y001, Y002
*5
or Y003
*5
from a
high-speed output special adapter
*4
.
*3. Y002 is not available in FX
3G PLC (14-point and 24-point type) and FX3S/FX3GC PLC.
*4. High-speed output special adapters can be connected only to FX
3U PLC.
*5. To use Y002 or Y003 with a high-speed output special adapter, connected a second high-speed output
special adapter.
Points
• When using a relay output type or triac output type FX3U PLC, a special high-speed output adapter is required.
• Outputs of special high-speed output adapters work as differential line drivers.
Operand type Description Data type
Number of output pulses (absolute address)
*1
16- or 32-bit binary
Output pulse frequency
*2
Device number (Y) from which pulses are to be output
Bit
Device number to which rotation direction signal is output
Pulse output destination Setting range
FX3U PLC Special high-speed output adapter 10 to 200,000 (Hz)
FX3S/FX3G/FX3GC/FX3U/FX3UC PLCs Main unit (transistor output) 10 to 100,000 (Hz)
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
S4 S5
S4 S5
S
1
S
2
S3
FNC 159
DRVA
D
DRVA
16-bit Instruction
9 steps
Mnemonic Operation Condition
Continuous
Operation
DDRVA
32-bit Instruction
17 steps
Mnemonic Operation Condition
Continuous
Operation
S
1
S
2
D
1
D
2
S
1
S
2
D
1
D
2