MODEL: R7M

R7M SPECIFICATIONS

ES-7803 Rev.26 Page 5/39

http://www.m-system.co.jp/

0

10

11

12

13

2

3

4

1

15

16

17

18

7

8

9

6

14

5

Discrete I/O Status Indicator LED

I/O Terminals

■ DISCRETE I/O STATUS INDICATOR LED

Discrete I/O modules, including those for extensions, have LED indicators showing I/O signal status.

Totalized pulse modules have LED indicators showing input signal status.

Contact ON : LED ON

Contact OFF : LED OF

CONNECTION DIAGRAMS

■ POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT

4

DA

5

DG

6

+24V

1

DB

2

SLD

3

FG

7

0V

NO.

ID

FUNCTION, NOTES

1

DB

----

2

SLD

Shield

3

FG

FG

4

DA

----

5

DG

----

6

+24V

Power input (24V DC)

7

0V

Power input (0V)

ID

1

2

3

4

5

6

7

NO.

FUNCTION, NOTES

DB

SLD

FG

DA

DG

U (+)

V (-)

Shield

FG

Power input

Power input

4

DA

5

DG

6

U (+)

1

DB

2

SLD

3

FG

7

V (-)

• R7M-PA8, RR8

• Except R7M-PA8 and RR8

----

----

----

■ MASTER CONNECTION

Tx+/Rx+

Tx–/Rx–

SG

Rx+

Rx–

Host PC

DA

DB

DG

SLD

FG

Remote Unit

DA

DB

DG

SLD

FG

Remote Unit

TERMINATOR

TERMINATOR

Be sure to connect the terminating resistor included in the product package to the unit at both ends of transmission line.

The terminator must be connected across DA and DB.

The Host PC can be located other than at the extreme ends of transmission line.