MODEL: R10M-CT4E

R10M-CT4E SPECIFICATIONS

ES-6247 Rev.0 Page 4/7

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

MODBUS WIRING CONNECTION

DA

DB

DG

HOST PC

DA

DB

DG

SLD

FE

MODBUS

I/O

MODULE

DA

DB

DG

SLD

FE

TERMINATOR

TERMINATOR

Note: The terminator must be connected across “DA” and “DB” at both ends of communication line.

■ WIRING COMMUNICATION WITH HOST PC

MODBUS

I/O

MODULE

TERMINAL ASSIGNMENTS

■ BASE

1

K1

6

L1

2

K2

3

K3

4

K4

5

NC

7

L2

8

L3

9

L4

10

NC

11

FE

16

SLD

12

DB

13

DA

14

NC

15

FE1

17

DG

18

NC

19

24V

20

0V

PIN NO.

ID

FUNCTION

PIN NO.

ID

FUNCTION

1

K1

Input 1-K

11

FE

Modbus grounding

2

K2

Input 2-K

12

DB

DB

3

K3

Input 3-K

13

DA

DA

4

K4

Input 4-K

14

NC

Unused

5

NC

Unused

15

FE1

Power grounding

6

L1

Input 1-L

16

SLD

Shield

7

L2

Input 2-L

17

DG

DG

8

L3

Input 3-L

18

NC

Unused

9

L4

Input 4-L

19

24V

Power supply 24V DC

10

NC

Unused

20

0V

Power supply 0V DC

* Base does not come with the unit. Please order separately.

MODBUS FUNCTION CODES & SUPPORTED CODES

Modbus function codes are shown below

■ DATA AND CONTROL FUNCTIONS

CODE

NAME

02

Read Input Status

Status of digital inputs to the slave (read only)

04

Read Input Registers

Collected data from the fi eld by the slave (read only)

■ EXCEPTION CODES

CODE

NAME

01

Illegal Function

Function code is not allowable for the slave

02

Illegal Data Address

Address is not available within the slave

03

Illegal Data Value

Data is not valid for the function