7 Applied Instructions
7.14 Positioning Control
537
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of
Instruction
4
How to Read
Explanation of
Instructions
5
Basic Instruction
6
Step Ladder
Instructions
7
Applied
Instructions
8
Interrupt Function
and Pulse Catch
Function
A
Relationships
between devices
and addresses
Function and operation explanation
Cautions about writing during RUN
Avoid writing during RUN while DVIT is being executed (during pulse output).
If, during pulse output, writing during RUN is attempted in the circuit block including this instruction, it must be
noted that the pulse output slows down and stops.
Function changes by version
This instruction includes the function changes as shown in the table below depending on the version.
→ As for the explanation of the instruction and contents of function changes, refer to the positioning
control manual.
Corresponding version
Item Outline of function
FX3U FX3UC
Ver. 2.20 or
later
Ver. 1.30 or
later
Interrupt input
signal designating
function
When M8336 is turned ON, the interrupt input signal corresponding to Y000 to
Y003 is changed to input number (X000 to X007) specified by D8336.
However, Y003 cannot be specified when transistor output of basic unit is used.
Ver. 2.20 or
later
Ver. 2.20 or
later
User interrupt mode
When 8 is specified by D8336 in interrupt input signal corresponding to Y000 to
Y003 and M8336 is turned ON, the interrupt input signal is changed to special
auxiliary relay. When the changed special auxiliary relay is changed from OFF
to ON by input interrupt program, the interrupt operation is started. However,
when this function is used, the logic of interrupt input cannot be inverted.
However, Y003 cannot be specified when transistor output of basic unit is used.
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
Label 2
*2
Label 1
*1
Device of rotating direction signal
Device for issuing pulse (Y)
*1. Number of output pulses after interrupt is defined.
*2. Number of output pulses is defined.
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