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20 Applied Instructions (Positioning Control)
20.2 DVIT / Interrupt Positioning
520
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
20.2 DVIT / Interrupt Positioning
Outline
This instruction executes one-speed interrupt inching.
→ As for explanation of the instruction, see the positioning control manual.
→ As for cautions of use of high speed output special adapter, see the positioning control manual.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
Function and operation explanation
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
DVIT 16 bits Continuous DVIT(EN,s1,s2,d1,d2);
DDVIT 32 bits Continuous DDVIT(EN,s1,s2,d1,d2);
Variable Description
Data type
16-bit
operation
32-bit
operation
Input
variable
EN Execution condition Bit
Number of output pulses after interrupt (relative address) ANY16 ANY32
Output pulse frequency ANY16 ANY32
Output
variable
ENO Execution state Bit
Device for issuing pulse (Y) Bit
Device of rotating direction signal Bit
Operand
type
Bit Devices Word Devices Others
System user Digit designation
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D
.b
KnX KnY KnM KnS T C D R
U\G
VZModifierK H E
""
P
zzzzzzzz z z zz
zzzzzzzz z z zz
S1
z
S2
zz
S3
z
DVIT
EN
s1
ENO
d1
d2s2
DDVIT
EN
s1
ENO
d1
d2s2
DVIT
EN
s1
ENO
d1
d2s2
Device of rotating direction signal
Command
input
Number of output pulses after interrupt
Output pulse frequency
Device for issuing pulse (Y)
DDVIT
EN
s1
ENO
d1
d2s2
Command
input
Output pulse frequency
Number of output pulses after interrupt
Device of rotating direction signal
Device for issuing pulse (Y)