Specifications Of Input/Output Signals With Plc Cpu; List Of Input/Output Signals With Plc Cpu - Mitsubishi MELSEC QD75P User Manual

3 SPECIFICATIONS AND FUNCTIONS

3.3 Specifications of input/output signals with PLC CPU

3.3.1 List of input/output signals with PLC CPU

The QD75 uses 32 input points and 32 output points for exchanging data with the PLC
CPU.
The input/output signals when the QD75 is mounted in slot No. 0 of the main base unit
are shown below.
Device X refers to the signals input from the QD75 to the PLC CPU, and device Y
refers to the signals output from the PLC CPU to the QD75.
Signal direction: QD75
Device No.
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
XA
XB
XC
XD
XE
XF
X10
X11
X12
X13
X14
X15
X16
X17
X18
X19
X1A
X1B
X1C
X1D
X1E
X1F
Important
[Y1 to Y3], [Y18 to Y1F], [X2, X3], and [X18 to X1F] are used by the system, and cannot be
used by the user.
If these devices are used, the operation of the QD75 will not be guaranteed.
PLC CPU
Signal name
QD75 READY
Synchronization flag
Use prohibited
Axis 1
Axis 2
M code ON
Axis 3
Axis 4
Axis 1
Axis 2
Error detection
Axis 3
Axis 4
Axis 1
Axis 2
BUSY
Axis 3
Axis 4
Axis 1
Axis 2
Start complete
Axis 3
Axis 4
Axis 1
Axis 2
Positioning complete
Axis 3
Axis 4
Use prohibited
3 - 14
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Signal direction: PLC CPU
Device No. Signal name
Y0 PLC READY
Y1
Y2 Use prohibited
Y3
Y4 Axis 1
Y5 Axis 2
Y6 Axis 3
Y7 Axis 4
Y8 Axis 1 Forward run JOG start
Y9 Axis 1 Reverse run JOG start
YA Axis 2 Forward run JOG start
YB Axis 2 Reverse run JOG start
YC Axis 3 Forward run JOG start
YD Axis 3 Reverse run JOG start
YE Axis 4 Forward run JOG start
YF Axis 4 Reverse run JOG start
Y10 Axis 1
Y11 Axis 2
Y12 Axis 3
Y13 Axis 4
Y14 Axis 1
Y15 Axis 2
Execution prohibition flag
Y16 Axis 3
Y17 Axis 4
Y18
Y19
Y1A
Y1B
Use prohibited
Y1C
Y1D
Y1E
Y1F
MELSEC-Q
QD75
Axis stop
Positioning start