Ethernet Connectivity
Reliable wired monitoring and control with standard Ethernet IO/IP protocol.
ETHERNET MQTT DIGITAL I/O DEVICE
4 Digital Input 4 Digital Output TO Ethernet IO
An Ethernet-based industrial I/O device designed for reliable digital signal acquisition and control in distributed automation systems. It supports Ethernet IO/IP communication, allowing easy integration with most PLCs, SCADA, HMI, and DCS systems.
Connect field devices via Ethernet. Monitor digital signals,
control equipment remotely, and integrate industrial I/O with
cloud, SCADA and IoT platforms.
Key Features & Benefits
Industrial-grade reliability meets robust Ethernet connectivity for seamless integration into your automation ecosystem.
MQTT Communication
Lightweight communication for cloud integration and real-time IoT data exchange.
Modbus TCP over Ethernet
Industrial protocol compatibility for SCADA and automation systems.
4DI + 4DO Architecture
Monitor field signals and remotely control connected equipment through one compact node.
Industrial Isolation
Opto-isolated inputs provide electrical isolation for reliable field signal monitoring.
Compact DIN Rail Design
Modular enclosure suitable for installation inside industrial control panels.
High Communication Speed
10/100 Mbps auto-detect Ethernet port for fast data transfer.
Protection Features
Reverse-polarity, overvoltage, short-circuit, transient-voltage and TVS/ESD protection.
System Architecture
Seamless connectivity from field devices to the cloud dashboard.
Digital Input Section
Monitor Digital Signals in Real Time
The device provides 4 isolated digital input channels for monitoring field signals from switches, sensors and dry-contact devices. The inputs support 24 VDC sink/source operation and provide isolation up to 5000 VRMS for 1 minute.
- 4 isolated digital input channels
- 24 VDC sink/source contact rating
- Opto-isolated input design
- Up to 5000 VRMS isolation for 1 minute
- Suitable for switches, sensors and dry-contact devices
Digital Output Section
Remote Relay Control for Connected Equipment
The 4 relay outputs allow remote switching of connected loads and automation equipment through MQTT or Modbus TCP commands. Each output is a Form A relay output rated at 5 A @ 240 VAC or 5 A @ 30 VDC.
Control Remotely. Automate Instantly.
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Remote ON/OFF
Switch connected equipment through remote commands.
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Relay-Based Control
Use the four Form A relay outputs for compatible loads.
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Automation Actions
Trigger outputs as part of remote monitoring and control workflows.
Ethernet Connectivity & Communication
Wired Connectivity for IoT and Industrial Automation
The node uses Ethernet 10/100 T and supports Ethernet IO/IP for easy integration. The product page also identifies Modbus TCP over Ethernet for industrial protocol compatibility and SCADA/automation integration, as well as MQTT for cloud platform transmission.
- Ethernet 10/100 T
- Supported protocols: Ethernet IO, MQTT
- Modbus TCP over Ethernet
- Watchdog Timer & Fail-safe Protection
- Green communication-status LED indication
Smart I/O. Smarter Operations.
Monitor machine signals, control equipment and drive OEE, MES and productivity improvements.
OEE Monitoring
Track availability, Performance and quality in real time.
Part & Cycle Counting
Count parts produced to track output and productivity. Accurate counting for every machine cycle.
Production Tracking
Monitor Production Output and batch progress.
Downtime Analysis
Identify downtime reasons and improve efficiency.
Count Every Pulse. Monitor Every Event.
Built-in Digital Input Counter for Smart Monitoring & Automation
UCT 4DI 4DO Ethernet Converter can use its digital inputs to capture and count pulse-based signals from connected field devices. Count events locally at the device, transmit the accumulated data over Ethernet, and monitor the values remotely through an IoT platform or dashboard.
Accurate Pulse Counting
Capture digital pulses from meters, sensors, and machines for precise event and consumption monitoring.
Accumulated Count
Maintain cumulative counts to track total usage, production cycles, machine events, or other repetitive operations.
Remote Data Transmission
Send counter data over Ethernet for reliable monitoring without extending sensor wiring infrastructure.
Smart Monitoring & Analytics
Visualize counter values, trends, and historical data through the connected IoT platform or dashboard.
Technical Specifications
Detailed hardware and environmental parameters for industrial deployment.
General
- Input Power Unregulated 9 – 30 VDC
- Power Consumption Less than 1 W @ 12 VDC
- Protection Reverse Polarity, Overvoltage (+/-35 VDC), Short Circuit, Transient Voltage, TVS/ESD
- Indication Power (Red), Status (Green)
- Connector 5mm pitch screw terminal blocks
- Enclosure ABS Enclosure
- Dimensions Modular Architecture (145mm x 90mm x 40mm)
- Warranty 12 Months from date of installation or 18 Months from date of delivery
Environment
- Operating Temp 0 to 65° C
- Storage Temp -10 to 70° C
- Operating Humidity 5 – 95% RH (non-condensing)
Mounting
- Built Architecture Modular
- Mounting DIN Rail Mountable, Wall Mountable, Stack Mountable
- Installation Plug and Play Device
Data Connectivity
- Connectivity Supported Ethernet 10/100 T
- Protocol Supported Ethernet IO
- Communication Interface RJ45
- Configuration Via Web Page Interface
- Indication Green for Communication Status
Digital Input
- Channels 4
- Contact Rating 24 VDC Sink/source (Isolated) Upto 5000 VRMS for 1 minute
- Standard Opto Isolated Inputs
Digital Output
- Channels 4
- Contact Rating 5Amp @240VAC 5Amp @30VDC
- Type Form A Type Relay Output
Functional Description
Core operational capabilities for industrial monitoring and control.
Digital Input Monitoring
Digital Input Channels can detect switch states, limit sensors, proximity sensors, or dry contact devices.
Remote Output Control
Digital Output Channels can drive relays, solenoids, indicator lamps, or other external loads.
Ethernet Communication
Ethernet connectivity integrates the node with cloud platforms, dashboards and SCADA systems using MQTT or Modbus TCP.
Web Configuration Tool
Web Configuration Tool provides an intuitive interface for setting IP address, I/O mode, and monitoring signal status.
Applications & Use Cases
Versatile Ethernet I/O solutions for diverse industrial and commercial environments.
Industrial Automation
Ethernet IO digital I/O control and monitoring for smart factories.
Building Management
Building automation with Ethernet connectivity.
Energy Management
Energy management system Ethernet IO integration.
SCADA Integration
SCADA system integration via Ethernet IO/Ethernet.
HVAC & Lighting
HVAC and lighting system management.
Process Control
Process control via Ethernet IO protocol.
Ready to Connect Your Digital I/O over Ethernet?
Deploy the UCT 4DI 4DO Ethernet Node for flexible digital monitoring and remote relay control across industrial, building, energy and process applications.