Mitsubishi Electric MELSECQ Series User Manual page 25

1 PRODUCT OUTLINE
Communication
Control signal
Data (read/write)
Communication
Data
Operation monitor
Communication
Control signal
Pulse train
: External 24VDC must be supplied to output the pulse train.
Mechanical system inputs (switches)
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QD70 Programmable controller CPU
The QD70 and programmable controller CPU communicate the following data via
the base unit.
Direction QD70
Signal indication QD70 state.
• Module READY (X0)
• Axis error occurrence (X1)
• Axis warning occurrence (X2)
• BUSY (X8 to XF)
• Start complete (X10 to X17)
• Positioning complete (X18 to X1F)
• Parameter
• OPR data
• JOG data
• Positioning data
• Control data
• Monitor data
QCPU Peripheral device (GX Configurator-PT)
The QCPU and peripheral device make the following communications. (Refer to
Chapter 6 for details.)
Direction
QCPU
• Monitor data (QD70 buffer
memory/XY devices)
QD70 Drive unit
The QD70 and drive unit communicate the following data via the external device
connection connector.
Direction
Signals related to commands
• Deviation counter clear signal
(CLEAR)
• Pulse train output (PULSE F/
PULSE R)
Mechanical system inputs (switches)
The input signals from the mechanical system inputs (switches) are entered into the
QD70 via the external device connection connector.
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Programmable controller
CPU
Peripheral device
–
QD70 Drive unit
• Near-point dog signal (DOG)
• Speed-position switching signal (CHG)
MELSEC-Q
Programmable controller CPU
Signal related to commands.
• Programmable controller READY (Y0)
• Positioning start (Y8 to YF)
• Axis stop (Y10 to Y17)
• JOG start (Y18 to Y1F)
• Parameter
• OPR data
• JOG data
• Positioning data
• Control data
Peripheral device
• Initial setting
• Auto refresh setting
–
Drive unit QD70
Signal indicating OP
• Zero signal (PG0)
–
QD70
QD70
QCPU
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