M-system R3-NM3, R3-NM4 Instruction Manual

INSTRUCTION MANUAL

MODBUS INTERFACE MODULE

(For temperature control module)

BEFORE USE ....

Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.

■ PACKAGE INCLUDES:

Network interface module ..................................................(1)

Terminating resistor (110 Ω, 0.25 W) .................................(1)

■ MODEL NO.

Confirm Model No. marking on the product to be exactly
what you ordered.

■ INSTRUCTION MANUAL

This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.

POINTS OF CAUTION

■ HOT INSERTION/REMOVAL OF MODULES

• It is possible to replace the module with the power is sup­plied. Be sure to replace it when the module is not com­municating with a host, as it is possible to affect the sys­tem. However, replacing multiple modules at once may
greatly change line voltage levels. We recommend that
you replace them one by one.

MODEL

■ AND ....

• The unit is designed to function as soon as power is sup­plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.

R3-NM3

INSTALLATION

Use the Installation Base Model R3-BS, or Model R3-BSW
for free I/O address capability.

Before mounting the Network Interface Module onto the
Base, be sure to configure the module as explained below.

■ DATA ALLOCATION

The setting determines the data area size assigned to each
I/O module mounted on the base.
The data sent/received via Modbus is mapped according to
this setting.
See “COMPONENT IDENTIFICATION” and “MODBUS
I/O ASSIGNMENTS”.

■ NODE ADDRESS & BAUD RATE, ETC.

See “COMPONENT IDENTIFICATION”.

■ NETWORK SLOTS ON THE BASE

I/O 1 I/O 2 I/O n

■ POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and
confirm its operational range as indicated below:

100 – 120V AC rating: 85 – 132V, 47 – 66 Hz, approx. 20VA
200 – 240V AC rating: 170 – 264V, 47 – 66 Hz, approx. 20VA

24V DC rating: 24V ±10%, approx. 12W

■ GENERAL PRECAUTIONS

• DO NOT set the switches on the module while the power
is supplied. The switches are used only for maintenance
without the power.

■ ENVIRONMENT

• Indoor use.

• When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.

• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.

• Environmental temperature must be within -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.

■ WIRING

• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).

• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.

With Model R3-BS base, mount the I/O Modules from the
left end (I/O 1) to the right in order that the Network Mod­ule assigns data areas from I/O 1.
Network Module(s) and Power Module are mounted basi­cally at the right end though technically they could be
mounted in any position.

With Model R3-BSW base, there is no limitation in mount­ing positions as I/O address can be assigned freely to each
module using rotary switches equipped on the base.

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-8330 Rev.3 P. 1 / 9

COMPONENT IDENTIFICATION

■ FRONT VIEW ■ SIDE VIEW

D

C

E

B

F

A

9

0

8

1

7

2

SA1

3

6

5

4

D

C

E

B

F

A

Node Address (MSD)

9

0

8

1

7

SA2

2

3

6

5

RUN LED

4

R3-NM3

ERR LED

Configuration Jack

Euro Type
Connector Terminal

4

5

6

Node Address (LSD)

FG
SLD
DG
DB
DA

1

2

3

DIP SW

SW6

8
7
6
5
4
3
2
1

ON

■ FRONT ROTARY SW

• Node Address: SA1, SA2

Set the module’s node address in hexadecimal with SA1 and
SA2. (Setpoint adjustment: 01 – F7)

■ FRONT DIP SW

(*) Factory setting

• Baud Rate: SW6-1, 6-2

SW

38.4k (*) 19.2k 9600

BAUD RATE (bps)

4800

SW6-1 OFF ON OFF ON
SW6-2 OFF OFF ON ON

• Parity: SW6-3, 6-4*

SW

1

PARITY

NONE (*) ODD EVEN

N/A

SW6-3 OFF ON OFF ON
SW6-4 OFF OFF ON ON

• Data Mode: SW6-5*

SW

1

DATA MODE

RTU (Binary) ASCII

SW6-5 OFF ON

*1. Bit assignment according to Parity and Data Mode setting.

MODE STA RT DATA PARITY STOP

RTU

ASCII

1 8 1 1
1 8 None 2
1 7 1 1
1 7 None 2

Note: Be sure to set unused SW6-6 through 6-8 to OFF.

DIP SW

SW3

4
3
2
1

ON

SW2

8
7
6
5
4
3
2
1

ON

SW1

8
7
6
5
4
3
2
1

ON

■ SIDE DIP SW

(*) Factory setting

• Data Allocation: SW1, SW2

2

Data Allocation Type*

must be assigned to each I/O module
slot position to specify how many data areas (four types) are
to be occupied by each.
Two bits from SW1 and SW2 are assigned to each position,
and data areas can be specified from the slot No. 1 through

8. Setting for No. 9 and later slots is identical to No. 8.

SW ASSIGNMENT SLOT

SW1-1 SW1-2 1
SW1-3 SW1-4 2
SW1-5 SW1-6 3
SW1-7 SW1-8 4
SW2-1 SW2-2 5
SW2-3 SW2-4 6
SW2-5 SW2-6 7
SW2-7 SW2-8 8

SW SETTING DATA ALLOCATION

OFF OFF 1

ON OFF 4

OFF ON 8

ON ON 16

*2. Refer to the specifications of the related series for the Data

Allocation Type of I/O modules.

• Dual Communication: SW3-1

When two network modules are mounted, one must be
‘Main’ (OFF) network and the other must be ‘Sub’ (ON) net­work. For single communication, the network module must
always be set to ‘Main’ (OFF).

SW

DUAL COMMUNICATION

MAIN (*)

SUB

SW3-1 OFF ON

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-8330 Rev.3 P. 2 / 9

• Input Error Data: SW3-2

Hold: When the communication from an input module is lost

due to the input module error, the network module holds the
signal and stands by until the communication recovers.
Set to ‘0’: When the communication from an input module
is lost due to the input module error, the network module
outputs ‘0.’

SW

SW3-2 OFF ON

INPUT ERROR DATA

HOLD (*)

SET ‘0’

• Main/Sub Switching Control: SW3-3

The host PC or PLC can choose whether ‘Main’ or ‘Sub’ bus
is used when the switching control is set to ‘Host.’
In ‘Normal’ mode, ‘Main’ bus is normally used, while ‘Sub’
bus is when the main communication has failed.
Be sure to match this control mode for both network mod­ules in dual communication mode.

SW

SW3-3 OFF ON

Note: Set SW3-3 to OFF for use in single communication mode.

MAIN/SUB SWITCHING CONTROL

NORMAL (*)

HOST

• LED Function: SW3-4

Functions assigned to the front RUN and ERR LEDs can
be selected.

SW3-4

OFF (*) Green when normal Green when abnormal
ON Red when receiving Red when transmitting

LED FUNCTION

RUN ERR

R3-NM3

PC CONFIGURATOR

With configurator software, settings shown below are available.
Refer to the software manual of R3CON for detailed operation.

■ NETWORK MODULE SETTING

PARAMETER AVAILABLE RANGE DEFAULT SETTING

Time (no communication time) 0.2 – 3200.0 (sec.) 3.0 (sec.)

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-8330 Rev.3 P. 3 / 9