Mitsubishi Electronics QJ71C24/-R2, QJ71C24N, SH-080007 manual 315

APPENDIX

(2) Connection example

(Connection example 1)

(EL-LINE-II)

MELSEC-Q

Q series C24 side

RS232 signal

RS422 signal

External device side

CD

1

1

FG

SW1

SW2

2

FG

2

2

RDA

RD

TXD

1

OFF

1

OFF

TX

15

3

3

R

RDB

SD

RXD

2

ON

2

OFF

6

DTR

4

4

RTS

RX

SDA

19

3

OFF

3

OFF

5

5

SDB

SG

CTS

3

4

ON

4

OFF

6

20

DSRA

DSR

DTR

RTS

R

16

5

OFF

5

OFF

DSRB

7

6

RS

DSR

7

DTRA

8

8

6

ON

6

OFF

CS

CD

CTS

20

DTRB

9

7

7

OFF

7

OFF

1 or 14

RI

SG

SG

RTSA

8

ON

RTSB

CTSA

CTSB

SG

• The CD terminal check setting should be set to "No check" according to the explanation in Section 3.2.1 (1).

• DC code control or DTR/DSR control becomes possible for transmission control.

(Connection example 2)

(KS-1/KS-10P)

External device side

Q series C24 side

RS232 signal

RS485 signal

1

CD

1

FG

SW1

SW2

FG

1

FG

2

2

19

RDA

RD

RD

1

ON

1

ON

(+)

DATA

3

3

OUT

25

RDB

R

SD

SD

2

ON

(-)

15

4

4

(+)

SDA

DTR

CS

DATA

17

3

OFF

5

5

IN

SDB

SG

RS

(-)

14

4

OFF

6

6

(+)

DSRA

DSR

ER

CONT

16

R

5

ON

OUT

DSRB

7

7

SG

(-)

RS

21

(+)

DTRA

8

8

6

ON

CONT

23

CS

CD

IN

DTRB

9

9

7

ON

(-)

7

RI

DR

SG

RTSA

8

ON

RTSB

CTSA

CTSB

SG

• The CD terminal check setting should be set to "No check" according to the explanation in Section 3.2.1 (1).

• DC code control or DTR/DSR control becomes possible for transmission control.

App. - 21 App. - 21