Autonics ARM Series Catalog Page

ARM Series

Modbus Sensor Connector Type Digital Remote I/O

Features

● Modbus RTU standard protocol

● Saving work time for wiring with sensor connector

(CNE series, sold separately)

● Compact size
: Small size with W26×L76×H54mm to install at narrow space

: Available DIN Rail mounting and bolt mounting method

● Low-speed (16-bit/30CPS) counter function

● Real-time monitoring by various functions

: Communication speed auto-recognition
: Reading number of expansion units and specifications,

Reading model name of basic and expansion units

: Monitoring Single byte input/output, Multi byte input/output and status Flag

● Easy expansion
: Available to connect up to 63 basic units per 1 master unit
: Available to connect up to 7 expansion units per 1 basic units

(controllable input /output for max. 64 points)

: Combines the desired specifications of input/output by various input/output units

: Organizes power and communication system by only communication cable lines

High reliability

: Built-in surge, short, overheat, reverse power polarity and static prevention circuits

Please read “Safety Considerations”
in the instruction manual before using.

Ordering Information

AR M D 4SI N08

Terminal block

I/O specifications

I/O points

I/O type

Digital/Analog

Network

Item

4S Sensor connector type (4-pin socket)

N NPN open collector

P PNP open collector

08 8 points type

I Input type

O Output type

D Digital type

M Basic unit (Modbus RTU)

X Expansion unit (DeviceNet/Modbus)

AR Autonics Remote I/O

Models

Models

Basic unit Expansion unit

ARM-DI08N-4S ARX-DI08N-4S

ARM-DI08P-4S ARX-DI08P-4S

ARM-DO08N-4S

ARM-DO08P-4S

※Low speed counter of digital output type is available only when using with digital input type.

Manual

For the detail information and instructions of communication setting and Modbus mapping table, please refer to user
manual for communication, and be sure to follow cautions written in the technical descriptions (catalog, website).
Visit our website (www.autonics.com) to download manuals.

※

※

ARX-DO08N-4S

ARX-DO08P-4S

※

※

Specication

10-28VDC NPN input 8-point, low-speed counter (10mA/point)

10-28VDC PNP input 8-point, low-speed counter (10mA/point)

10-28VDC NPN output 8-point, low-speed counter (0.3mA/point)

10-28VDC PNP output 8-point, low-speed counter (0.3mA/point)

X-34

Modbus Digital Remote I/O

Specifications

Model

Basic unit
Expansion unit

ARM-DI08N-4S

ARX-DI08N-4S ARX-DI08P-4S ARX-DO08N-4S ARX-DO08P-4S

Power supply Rated voltage: 24VDCᜡ, Voltage range: 12-28VDC
Power consumption Max. 3W
I/O points NPN input 8-point PNP input 8-point NPN output 8-point PNP output 8-point

Control
I/O

Special function (input) Counter for 16-bit (30CPS
Communication speed

Voltage 10-28VDCᜡ input 10-28VDCᜡ output (voltage drop: max. 0.5VDCᜡ)
Current 10mA/point (sensor current: 150mA/points) 0.3A/point (leakage current: max. 0.5mA )
Common 8 points, Common

※

2

2400, 4800, 9600, 19200, 38400, 57600, 115200bps (default: 9600bps)

Communication method 2-wire half duplex
Communication distance Max. 800m
Multi-drop Max. 32 multi-drop
Medium access POLL
Application standard Compliance with EIA RS485
Protocol Modbus RTU
Data bit 8-bit
Stop bit 1-bit or 2-bit (default: 2-bit)
Parity bit None/Odd/Even (default: none)

I/O and inner circuit: photocoupler insulation

Isolation method

Modbus to internal bus and inner circuit: insulation
Unit power: non-insulation

Insulation resistance Over 200MΩ (at 500VDC megger)
Noise immunity ±240V the square wave noise (pulse width: 1㎲) by the noise simulator
Dielectric strength 1,000VAC 50/60Hz for 1 min
Vibration 1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock 500m/s2 (approx. 50G) in each X, Y, Z direction for 3 times

Environ­ment

Ambient temp. -10 to 55℃, storage: -25 to 75
Ambient humi. 35 to 85%RH, storage: 35 to 85%RH

Protection structure IP20 (IEC standards)

Surge, short-circuit, overheat (over 165℃) and ESD protection, reversed polarity protection circuit

Protection circuit

Overcurrent protection circuit

(operated at min. 0.17A)

Indicator

Network status (NS) LED (green, red), unit status (MS) LED (green, red)
I/O status LED (input: green, output: red)

Material Front case, body case: Polycarbonate
Mounting DIN rail or bolt mounting type

Approval

Basic

※

3

Weight

Expansion

※

1: CPS (counter per second): Specication of accepting external signals per second

※

2: The communication speed is automatically set to the communication speed of the Master (PC, PLC, etc.).

Approx. 123.3g

(approx. 61.8g)
Approx. 117.5g

(approx. 56g)

When changing the communication speed during operation, the network status (NS) LED ashes in red and communication is not

possible.

※

3: The weight includes packaging. The weight in parenthesis is for unit only.

※

Environment resistance is rated at no freezing or condensation.

ARM-DI08P-4S ARM-DO08N-4S ARM-DO08P-4S

ᜡ

※

1

) (only when using digital input unit of ARM, ARX)

℃

Overcurrent protection circuit

(operated at min. 0.7A)

Approx. 123.3g

(approx. 61.8g)
Approx. 118.5g

(approx. 57g)

Approx. 123.3g

(approx. 61.8g)
Approx. 119.5g

(approx. 58g)

Approx. 123.3g

(approx. 61.8g)
Approx. 120.5g

(approx. 59g)

SENSORS

CONTROLLERS

MOTION DEVICES

SOFTWARE

(J)
Temperature
Controllers

(K)
SSRs

(L)
Power
Controllers

(M)
Counters

(N)
Timers

(O)
Digital
Panel Meters

(P)
Indicators

(Q)
Converters

(R)
Digital
Display Units

(S)
Sensor
Controllers

(T)
Switching
Mode Power
Supplies

(U)
Recorders

X-35

(V)
HMIs

(W)
Panel PC

(X)
Field Network
Devices