Specifications

3 – 10
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 input signals from the QD75 to the PLC CPU, and device Y
refers to the output signals from the PLC CPU to the QD75.
Table 3.2 List of Input/output signals
Signal direction: QD75 PLC CPU Signal direction: PLC CPU QD75
Device No. Signal name Device No. Signal name
X0
QD75
READY
ON : READY
OFF : Not READY/Watch
dog timer error
Y0 PLC READY
OFF : PLC READY
OFF
ON
: PLC READY
ON
X1
Synchronizati
on flag
OFF : Module access
disabled
ON : Module access
enabled
Y1
X2 Y2
X3
Use prohibited
Y3
Use prohibited
X4 Axis 1 Y4 Axis 1
X5 Axis 2 Y5 Axis 2
X6 Axis 3 Y6 Axis 3
X7 Axis 4
OFF : M code is not set
ON : M code is set
Y7 Axis 4
Axis stop
OFF : Axis stop not
requested
ON : Axis stop
requested
X8 Axis 1 Y8 Axis 1
Forward run
JOG start
X9 Axis 2 Y9 Axis 1
Reverse run
JOG start
XA Axis 3 YA Axis 2
Forward run
JOG start
XB Axis 4
OFF : No error
ON : Error occurrence
YB Axis 2
Reverse run
JOG start
XC Axis 1 YC Axis 3
Forward run
JOG start
XD Axis 2 YD Axis 3
Reverse run
JOG start
XE Axis 3 YE Axis 4
Forward run
JOG start
XF Axis 4
OFF : Not BUSY
ON : BUSY
YF Axis 4
Reverse run
JOG start
OFF
: JOG not
started
ON
: JOG started
X10 Axis 1 Y10 Axis 1
X11 Axis 2 Y11 Axis 2
X12 Axis 3 Y12 Axis 3
X13 Axis 4
OFF : Start incomplete
ON : Start complete
Y13 Axis 4
Positioning
start
OFF : Positioning start
not requested
ON : Positioning start
requested
X14 Axis 1 Y14
X15 Axis 2 Y15
X16 Axis 3 Y16
X17 Axis 4
OFF : Positioning incomplete
ON : Positioning complete
Y17
X18 Y18
X19 Y19
X1A Y1A
X1B Y1B
X1C Y1C
X1D Y1D
X1E Y1E
X1F
Use prohibited
Y1F
Use prohibited
IMPORTANT
[Y1 to Y3], [Y18 to Y1F], [X2, X3], and [X18 to X1F] are used by the system, and cannot be
used by users.
If these devices are used, the operation of the QD75 will not be guaranteed.