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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
9 One-speed Interrupt constant quantity feed -DVIT Instruction
9.3 Function and Operation
B - 131
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
1. Interruption positioning operation
The interruption positioning operation is described below assuming that Y000 is specified as the pulse output
destination device by .
For this reason, if Y001, Y002, or Y003 is specified, it is necessary to change the output number of each
related flag.
→ For details on related flags, refer to Section 4.1 to Section 4.4, or Section 9.2.
1) Execute the Interrupt Positioning (DVIT) instruction.
2) Transfer operation will be performed in the direction specified by the sign attached to the number of
output pulses (specified by ) at the speed specified by the output pulse frequency (specified by
).
3) If interrupt input X000 is turned on, pulses will be output until the number of output pulses reaches the
number specified by , and then the operation will stop.
4) The "instruction execution complete" flag (M8029) will turn on, and the interruption positioning operation
will be completed.
→ For details on "Instruction execution complete" flag,
refer to Subsection 4.7.4.
D
1
Deceleration
time
(D8349)
Bias speed
(D8342)
ON
Speed
Acceleration
time
(D8348)
Instruction execution
Interrupt input (X000)
"Instruction
execution complete" flag
M8029
Maximum speed
(D8344,D8343)
Time
Output pulse
frequency
Number of output
pulses
S
1
•
S
2
•
S
1
S
2
S
1