Inovance H3U Series - Page 421

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6
6 Positioning and InterpolationDVIT: Interrupt positioning
7) Pulse output complete interrupts.
The "interrupt enabling ag bit" of special elements must be set. See the following table.
Y0 Y1 Y2 Y3 Y4 Attribute
M8352 M8372 M8392 M8412 M8432
Output complete
interrupt enabling
Y0 output
complete interrupt
Y1 output
complete interrupt
Y2 output
complete interrupt
Y3 output
complete interrupt
Y4 output
complete interrupt
Corresponding
interrupt
8) The pulse output is stopped.
The pulse output can be stopped by setting the "pulse output stop ag bit" of special elements. See the
following table.
Y0 Y1 Y2 Y3 Y4 Attribute
M8349 M8369 M8389 M8409 M8429 Pulse output stop ag
◆
Program example
This instruction is used to output 30,000 pulses at a 4 kHz frequency through the port Y0, and drive the
external servo actuator to move in the direction specied by Y3.
Current
position
Targetposition
DVIT: Interrupt positioning
◆
Overview
The system starts and accelerates to the specied speed-segment output frequency. After detecting an
interrupt input signal, the system immediately accelerates or decelerates to the position-segment output
frequency, and outputs the specied number of pulses.
DVIT S1 S2 S3 D1 D2 S4
Interruption
positioning
Applicable model:
H3U
S1 Pulse count Number of pulses to be output at the position segment
after the interrupt
16-bit instruction
(13 steps)
DVIT: Continuous
execution
32-bit instruction
(25 steps)
DDVIT: continuous
execution
S2 Output
frequency 1
Specied speed-segment pulse output frequency
S3 Output
frequency 2
Specied position-segment pulse output frequency after
the interrupt
D1 Output port High-speed pulse output port
D2 Output
direction
Pulse running direction port or bit variable
S4 Interrupt input Interrupt input signal port (X0 to X7)