beautypg.com

1 list of input/output signals with plc cpu, Melsec-q, Important – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 62

background image

3 - 14

MELSEC-Q

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

PLC CPU

Signal direction: PLC CPU

QD75

Device No.

Signal name

Device No.

Signal name

X0

QD75 READY

Y0

PLC READY

X1

Synchronization flag

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

M code ON

Y7

Axis 4

Axis stop

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

Error detection

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

BUSY

YF

Axis 4

Reverse run JOG start

X10

Axis 1

Y10

Axis 1

X11

Axis 2

Y11

Axis 2

X12

Axis 3

Y12

Axis 3

X13

Axis 4

Start complete

Y13

Axis 4

Positioning start

X14

Axis 1

Y14

Axis 1

X15

Axis 2

Y15

Axis 2

X16

Axis 3

Y16

Axis 3

X17

Axis 4

Positioning complete

Y17

Axis 4

Execution prohibition flag

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 the user.

If these devices are used, the operation of the QD75 will not be guaranteed.