MODEL: R3-NM3

R3-NM3 SPECIFICATIONS

ES-8330 Rev.7 Page 1/7

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

Remote I/O R3 Series

MODBUS INTERFACE MODULE

(For temperature control module)

109

(4.29)

27.5 (1.08)

130

(5.12)

mm (inch)

MODEL: R3-NM3-[1][2]

ORDERING INFORMATION

• Code number: R3-NM3-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. R3-NM3-R/Q)

• Specify the specification for option code /Q

(e.g. /C01/SET)

[1] POWER INPUT

N: No power supply

AC Power

K3: 100 – 120 V AC

(Operational voltage range 85 - 132 V, 47 - 66 Hz) *

L3: 200 – 240 V AC

(Operational voltage range 170 - 264 V, 47 - 66 Hz) *

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) *

* Not selectable for use with independent power modules or

network modules with the internal power input options.

[2] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

EX-FACTORY SETTING

/SET: Preset according to the Ordering Information Sheet

(No. ESU-8354)

PACKAGE INCLUDES...

• Terminating resistor (110 Ω, 0.25 W)

GENERAL SPECIFICATIONS

Connection

Modbus: Euro type connector terminal

Internal bus: Via the Installation Base

(model: R3-BSx)

Internal power: Via the Installation Base (model: R3-BSx)

Power input, RUN contact output: M3 separable screw

terminal (torque 0.5 N·m)

Screw terminal: Nickel-plated steel

Isolation: Modbus to internal bus or internal power to power

input to RUN contact output to FG

Input error data: Input value setting at input module error

with side DIP SW

Main/Sub switching control in dual communication mode:

Selectable with the side DIP SW (refer to the manual)

Dual communication setting: Set with the side DIP switch

Data allocation setting: Set with the side DIP switch

RUN indicator: Bi-color (green/red) LED; Green ON in normal

communication; Red ON when receiving data (Function

selected with DIP SW)

ERR indicator: Bi-color (green/red) LED; Green blinking / ON

(0.1 sec.) at communication or setting error; Red ON at

transmitting data (Function selected with DIP SW)

■ RUN CONTACT OUTPUT

RUN contact: Turns ON while the green RUN LED is ON

(Modbus in normal communication).

Rated load: 250 V AC @ 0.5 A (cos ø = 1)

30 V DC @ 0.5 A (resistive load)

Maximum switching voltage: 250 V AC or 30 V DC

Maximum switching power: 250 VA or 150 W

Minimum load: 1 V DC @ 1 mA

When driving an inductive load, external contact protection

and noise quenching recommended.

MODBUS COMMUNICATION

RS-485

Standard: Conforms to TIA/EIA-485-A

Transmission distance: 500 meters max.

Transmission media: Shielded twisted-pair cable

(CPEV-S 0.9 dia.)

Transmission setting: DIP switch (front)

Data: RTU (Binary) or ASCII

Parity: None, even or odd

Baud rate: 4800, 9600, 19.2 k, 38.4 k (bps)

Node address: Rotary switch; 01 – F7