MODEL: R3-RS4

R3-RS4 SPECIFICATIONS

ES-8364 Rev.13 Page 3/4

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

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

1

11

12

13

14

15

16

17

18

19

20

2

3

4

5

6

7

8

9

10

27.5 [1.08]

109 [4.29]

POSITIONING

GUIDE

TERMINAL

COVER

20–M3

SCREW

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

A

B

B

RTD

INPUT 1

1

2

A

B

B

A

B

B

A

B

B

RTD

11

12

Input Circuit

INPUT 2

3

4

RTD

13

14

Input Circuit

INPUT 3

6

7

RTD

16

17

Input Circuit

INPUT 4

8

9

18

19

Input Circuit

Communication

Circuit

INTERNAL POWER

*For dual redundant communication.

Control

Circuit

DIP SW

RUN LED ERR LED

15

5

20

10

• Unused Input Channels

Close across the unused input terminals with a resistor as shown

below and set the DIP switch for Pt 100 input.

Unused channels left open are equal to the burnout, which turns

the red ERR LED on and sets a burnout flag at the PLC or the

host device.

Unused channels can be specified and set so on the PC

Configurator Software (model: R3CON) without needing to connect

resistors at the field terminals.

1

2

INPUT 1

3

4

INPUT 2

6

7

INPUT 3

9

INPUT 4

100Ω

11

13

16

18

8

INTERNAL BUS A

INTERNAL BUS B*