Fnc151 - Dvit / Interrupt Positioning - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
20.2 FNC151 – DVIT / Interrupt Positioning
Outline
This instruction executes one-speed interrupt constant quantity feed.
1. Instruction format
FNC 151
D
DVIT
2. Set data
Operand type
S
1
S
2
D
1
D
2
Setting range: −32768 to +32767 (except 0) in 16-bit operation
*1.
*2. Setting range: 10 to 32767 Hz in 16-bit operation
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
S
2
D
1
1
D
2
2
1 : Specify Y000, Y001 or Y002 transistor output from the main unit, or specify Y000, Y001, Y002
*2
Y003 from a high-speed output special adapter
*1. High-speed output special adapters can be connected only to FX
*2. To use Y002 and 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.
574
→ For explanation of the instruction, refer to the Positioning Control Edition manual.
Mnemonic
16-bit Instruction
9 steps DVIT
Number of output pulses (incremental address) after interrupt
*2
Output pulse frequency
Device number (Y) from which pulses are to be output
Device number to which rotation direction signal is output
−999,999 to +999,999 (except 0) in 32-bit operation
Following range in 32-bit operation
Pulse output destination
FX PLC Special high speed output adapter
3U
FX /FX PLC Main unit (transistor output)
3U 3UC
Digit Specification
3
20 Positioning Control – FNC150 to FNC159
→ For cautions on using special high speed output adapters,
refer to the Positioning Control Edition manual.
Operation Condition
32-bit Instruction
Continuous
Operation
Description
Word Devices
Special
System User
Unit
*1
.
PLC, a special high speed output adapter is required.
3U
20.2 FNC151 – DVIT / Interrupt Positioning
Mnemonic Operation Condition
17 steps DDVIT
*1
16- or 32-bit binary
Setting range
10 to 200,000 (Hz)
10 to 100,000 (Hz)
Others
Con- Real
Index
stant Number
V Z Modify K H E
PLC.
3U
Continuous
Operation
Data type
Bit
Charac-
Pointer
ter String
" " P
*2
or