Fnc157 - Plsv / Variable Speed Pulse Output - Mitsubishi Electric MELSEC FX3U Programming Manual

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
*3
Y003 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 FX
• Outputs of special high speed output adapters work as differential line drivers.
580
→ For explanation of the instruction, refer to the Positioning Control Edition manual.
Mnemonic
16-bit Instruction
9 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 Main unit (transistor output)
3G 3U 3UC
Digit Specification
3
*1
transistor output from the main unit, or specify Y000, Y001, Y002
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
Operation
Description
*1
Special high speed output adapter
Word Devices
Special
System User
Unit
4
*2
.
3G
PLC, a special high speed output adapter is required.
3U
Mnemonic Operation Condition
17 steps DPLSV
16- or 32-bit binary
Setting range
−200,000 to −1, +1 to 200,000 (Hz)
−100,000 to −1, +1 to 100,000 (Hz)
Others
Con- Real
Index
stant Number
V Z Modify K H E
PLC.
PLC.
3U
Continuous
Operation
Data type
Bit
Charac-
Pointer
ter String
" " P
*3
or