Fnc157 - Plsv / Variable Speed Pulse Output - Mitsubishi Electric FX3G SERIES Programming Manual
Programmable controllers
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Also See for FX3G SERIES:
- User manual (532 pages) ,
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FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
20.6
FNC157 – PLSV / Variable Speed Pulse Output
Outline
This instruction outputs variable speed pulses with an assigned rotation direction.
1. Instruction format
FNC 157
D
PLSV
2. Set data
Operand type
S
1
D
1
D
2
Setting range: −32768 to −1, +1 to +32767 (except 0) Hz for 16-bit operation
*1.
3. Applicable devices
Bit Devices
Oper-
and
System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
1
D
1
1
D
2
2
1 : Specify Y000, Y001 or Y002
from a high-speed output special adapter
*1.
Y002 is not available in 14-point and 24-point type FX
*2.
High-speed output special adapters can be connected only to FX
*3.
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 FX
required.
• Outputs of special high-speed output adapters work as differential line drivers.
2 : When using a special high-speed output adapter for the pulse output destination in an FX
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
direction signal must use transistor output.
Special high-speed output adapter No.
No. 1 (1st unit)
No. 2 (2nd unit)
3 : "D .b" is available only in FX
4 : This function is supported only in FX
→ For explanation of the instruction, refer to the Positioning Control Edition manual.
Mnemonic
16-bit Instruction
7 steps
PLSV
Device number for output pulse frequency
Device number (Y) from which pulses are to be output
Device number to which rotation direction signal is output
Following range for 32-bit operation
Pulse output destination
FX
PLC
3U
FX
/FX
/FX
PLC
3G
3U
3UC
Digit Specification
3
*1
transistor output from the main unit, or specify Y000, Y001, Y002
*2
and FX
3U
3UC
/FX
3U
20 Positioning Control – FNC150 to FNC159
20.6 FNC157 – PLSV / Variable Speed Pulse Output
→ For cautions on using special high-speed output adapters,
refer to the Positioning Control Edition manual.
Operation Condition
32-bit Instruction
Continuous
13 steps
Operation
Description
*1
Special high-speed output adapter
Main unit (transistor output)
Word Devices
Special
System User
Unit
V
Z Modify K H
4
.
PLC.
3G
3U
PLC, a special high-speed output adapter is
3U
Pulse output
Rotation direction output
=Y000
D
1
D
=Y001
1
=Y002
D
1
=Y003
D
1
PLCs. However, index modifiers (V and Z) are not available.
PLCs.
3UC
Mnemonic
Operation Condition
Continuous
DPLSV
Operation
Data type
16- or 32-bit binary
Bit
Setting range
−200,000 to −1, +1 to 200,000 (Hz)
−100,000 to −1, +1 to 100,000 (Hz)
Others
Con-
Real
Charac-
Index
stant
Number
ter String
E
" "
*3
PLC.
PLC, the rotation
3U
/FX
/FX
PLC, the rotation
3G
3U
3UC
D
=Y004
2
D
=Y005
2
D
=Y006
2
D
=Y007
2
11
12
13
14
15
Pointer
16
P
17
*3
or Y003
18
19
20
557
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