Chapter1 Overview - Mitsubishi Electric MELSECQ Series User Manual

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OVERVIEW
CHAPTER1
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OVERVIEW
This User's Manual describes the specifications, handling, and programming methods for
the type QD63P6 multichannel high-speed counter module used together with the
MELSEC-Q series CPU module.
The QD63P6 can use the following methods in 1-phase/2-phase pulse inputs.
•1 multiple of 1 phase pulse
input
•1 multiple of 2 phases pulse
input
For details of the input methods, refer to Section 5.1.
Figure 1.1 shows the general operation of the QD63P6.
Pulse
Encoder
Pulse
Encoder
Pulse
Encoder
Pulse
Encoder
Pulse
Encoder
Pulse
Encoder
1) Pulses input to the QD63P6 are counted.
2) The status of the I/O signals and buffer memory of the QD63P6 can be checked with the
sequence program.
Also, start, stop, preset, and coincidence detection of the count can be executed.
3) An interrupt request can be executed to the programmable controller CPU at counter
value coincidence detection.
Figure 1.1 General operation of the QD63P6
search engine
•2 multiples of 1 phase pulse
input
•2 multiples of 2 phases pulse
input
2) Reading/writing
the I/O signals and
buffer memory
QD63P6
1) CH1
3)
1) CH2 3)
1) CH3 3)
1) CH4 3)
1) CH5 3)
1) CH6
3)
•CW/CCW
•4 multiples of 2 phases pulse
input
Programmable
controller CPU
QCPU (Q mode)
1
2
3
4
5
6
7
8
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