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  5. Modbus | IO Modules  IO-4RO

Modbus | IO Modules

IO-4RO
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•Supports Modbus RTU over RS-485
•4-channel relay output supported
•DIP switch sets address and baud rate
•LED indicators show power & I/O status
•Works with SCADA, PLC, HMI systems

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Features Applications Specification Download Ordering Code

Features

  • Reliable data acquisition via RS-485 (Modbus RTU)
  • Cost-effective modules for industrial field use
  • DIP switches for quick baud rate and address setup
  • Modular design with flexible digital/analog I/O
  • Isolation protection for safe, stable field operation
  • LEDs indicate power, communication, and I/O status
  • Compatible with SCADA, PLC, and HMI integration
  • IO Studio software for real-time setup and diagnostics
  • Optional PC tool for data viewing and testing
  • DIN rail mountable for easy installation
  • RS-485 multi-drop communication, max 32 nodes
Real-Time Visibility × Effortless Configuration
Front Panel LED Indicators & DIP Switch Setup  
The IO-4RO module is equipped with intuitive front panel LED indicators and built-in DIP switches for streamlined field operation.
The LED indicators provide real-time status feedback on power, communication, and relay output states, enabling users to verify system conditions at a glance.
DIP switches allow quick, tool-free configuration of communication parameters and node address directly on-site—simplifying setup and reducing installation time.
  • Power: Flashes to indicate the CPU is running.
  • RS485 Rx: Flashes to indicate the unit has received a valid Modbus message.
  • RS485 Tx: Flashes to indicate the unit has sent a Modbus message.
  • Dip Switch: Allows on-site configuration of address and baud rate.
  • Output Status:  “ON” when the output is on. 
                                “OFF” when the output is off.
                              
Flexible and Efficient System Configuration Solutions
Our modular industrial control products offer a simple and intuitive configuration experience, making it easy to build automation architectures tailored to your needs. Whether you're expanding I/O capacity or integrating with existing systems, we provide stable and flexible solutions to support your operations .


Smart Monitoring Software Suite
Comprehensive tools for real-time monitoring, historical analysis, and device configuration.
1. IO Studio

IO Studio is a Windows-based configuration software designed for setting up and troubleshooting I/O modules on the network. It allows users to connect to RS485 Modbus RTU modules via RS485 serial port, RS232 to RS485 converter, or USB to RS485 converter.

  • Real-time data monitoring and configuration

  • Easy troubleshooting interface

  • DIP switch address setting on module front panel

  • Supports Modbus RTU communication

  • User-friendly operation for quick deployment

2. Historical Viewer

Historical Viewer provides robust tools for visualizing and analyzing historical data and alarms, making it ideal for auditing, diagnostics, and performance reporting.

  • Displays trends, alarms/events, and daily/weekly/monthly reports

  • Tabular view with comment annotations

  • Search by time, tag, event, or remark

  • Zoom and pan capabilities

  • Flexible time scale resolution (100 ms/dot to 1 month/page)

  • Export to CSV; auto-import/export features

  • Print trends, event logs, reports, and tag data

3.  Data Acquisition Studio (Optional)

Data Acquisition Studio(DAQ) is an all-in-one software for acquiring and monitoring data from recorders, temperature controllers, I/O modules, HMIs, and third-party devices using Modbus protocol.

  • PC-based real-time monitoring and logging
  • Centralized data acquisition across devices
  • Intuitive interface with easy setup
  • Compatible with wide range of industrial devices


Applications

Specification


 General Specifications

Interface

RS-485 Modbus RTU

Communication Speed

2400, 4800, 9600, 19200,38400,57600, 115200, 187500 BPS

Operating Temperature

-10°C to 50°C

Storage Temperature

-40°C to 85°C

Humidity

Up to 95% Non-condensing

Mounting

DIN Rail

Weight (grams)

105

Dimensions (W x H x D mm)

23*109*98

 Connectors

Inputs

18 Way screw connector on front

Communication

RJ45 on topside of the unit

Logic Power

4 Pin Connector on bottom side of unit

 Approval Standard

Safety

IEC 950

EMC

IEC 61000-4-2-A1 Level2, IEC 61000-4-3-A1 Level2, IEC 61000-4-4 Level3, CISPR11:1997-A1, EN55011:1998 Group1 Class A

 Digital Modules

Type of Module

Relay Output

No of Channels

4

Power Supply

Logic Supply Voltage

24 VDC

Logic Supply Current

42mA

Field Supply Voltage

N. A.

Field Supply Current

N. A.

Output Type

Relay

No of Outputs

4

Output Specification

Form C

Output Voltage

N. A.

Vceon

N. A.

Load Current

N. A.

Relay Rating

0.5A @ 220VAC
1A @ 28VDC

Isolation between Channels

1000 VRMS

Isolation between Field and Logic

1000 VRMS

Download

IO_Modules_Brouchure_Ver.1.4_EN

Modbus_IO_Modules_Brouchure_EN
Modbus_IO_Modules_Brouchure_CH

Modbus_IO_Modules_UMIOG_EN
Modbus_IO_Modules_UMIOTE_CH

I​O_Modules_Software_IO_Studio_V2.8​
Software_DAQ_V2.73(2501) 

Training_Demo_Data_Acquistion_Studio

UMEIO01A​
UMEIO01A​

IO_Brouchure_Ver.1.4/

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