MODEL: R8-NM1

R8-NM1 SPECIFICATIONS

ES-9722 Rev.5 Page 1/10

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

Remote I/O R8 Series

POWER/NETWORK MODULE

(Modbus use)

Functions & Features

• Free combination of analog and discrete I/O

• Space-saving

Typical Applications

• Remote I/O for DCS and PLC

MODEL: R8–NM1–R[1]

ORDERING INFORMATION

• Code number: R8-NM1-R[1]

Specify a code from below for [1].

(e.g. R8-NM1-R/Q)

• Specify the specification for option code /Q

(e.g. /C01)

MODULE TYPE

NM1: Modbus

POWER INPUT

DC power

R: 24 V DC

(Operational voltage range: ±10 %; ripple 10 %p-p max.)

[1] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

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

/C01: Silicone coating

/C02: Polyurethane coating

RELATED PRODUCTS

• PC Configurator cable (model: COP-US)

• PC configurator software (model: R8CFG)

Downloadable at M-System’s web site.

PACKAGE INCLUDES...

• Protective cover

GENERAL SPECIFICATIONS

Connection

•Power input or excitation supply: Tension clamp (Front

Twin connection)

Stripped length: 10 mm

•Modbus: Tension clamp (Front Twin connection)

Stripped length: 10 mm

•Internal bus or internal power or excitation supply: Via

connector

Max. number of I/O modules: 16

(Max. consumption current of I/O modules: 1.6 A)

Isolation: Modbus to internal bus or internal power or power

input to exc. supply to FE1

Status indicators: Power, Run, Error, SD, RD

Data allocation: Mode 1, 2

MODBUS COMMUNICATION

Communication: Half-duplex, asynchronous, no procedure

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, rotary switch.

Data format: RTU (Binary) or ASCII

Parity: none, even or odd

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

Node address: With rotary switch

Terminating resistor: Built-in (DIP Switch, default: disable)

INSTALLATION

Power consumption

•DC: Approx. 12 W 24 V DC (@ internal power max. current

1.6 A) )

Internal power supply (power supply for I/O module):

• DC power supply: 5 V DC

• Current capacity: 1.6 A

Excitation supply output (excitation for I/O module)

•DC: 24 V DC ±10 %

•Operational current: 10 A

(From power supply (exitation supply) connector, via