URD-0800 – Unitronics DI8,Universal,24VDC,10R

Why Choose the Unitronics URD-0800 Digital Input Module?

The Unitronics URD-0800 is a compact 8-channel digital input module designed for the UniStream Remote I/O platform. It enables PLC systems to monitor multiple field devices such as switches, sensors and control contacts operating on standard 24 V DC industrial control signals.

Installed within a UniStream distributed I/O assembly, the module communicates with a remote Ethernet adapter connected to the PLC controller. This architecture allows I/O modules to be positioned close to machinery or process equipment, reducing wiring complexity while supporting scalable automation systems.

With its eight universal digital inputs, optocoupler isolation and slim 12 mm DIN-rail design, the URD-0800 provides reliable signal monitoring in demanding industrial control panels and machine automation environments.

Key Advantages

• 8 digital input channels for monitoring multiple field signals.
• Universal sink/source inputs compatible with a wide range of sensors and switches.
• Fast signal response with approx. 0.3 ms switching delay.
• Compact 12 mm DIN-rail module suitable for high-density control cabinets.
• LED indicators showing individual input status.
• Designed for scalable distributed PLC automation using UniStream Remote I/O.

Key Features

• 8 × digital inputs.
• Nominal input voltage: 24 V DC.
• Operating voltage range: 15–32 V DC.
• Input type: universal sink/source inputs.
• Input response time: approx. 0.3 ms ON/OFF.
• Adjustable input filter up to 10 ms.
• Optocoupler isolation between I/O and logic circuitry.
• LED indicators for each input channel.
• Removable 10-pin terminal block for field wiring.

Technical Specifications

• Manufacturer: Unitronics
• Series: UniStream Remote I/O
• Model: URD-0800
• Module type: Digital input module
• Inputs: 8 digital inputs
• Input voltage: 24 V DC nominal
• Voltage range: 15–32 V DC
• Input current: approx. 3.03 mA per channel at 32 V DC
• Input delay: 0.3 ms typical
• Input impedance: approx. 10.2 kΩ
• Isolation: optocoupler isolation between field and logic circuits
• Supply voltage: 24 V DC nominal
• Connection: removable 10-pin terminal block
• Mounting: DIN rail
• Module dimensions: approx. 12 mm × 99 mm × 70 mm
• Operating temperature: −40 °C to +70 °C
• Protection rating: IP20 / NEMA 1

Distributed PLC Automation

UniStream Remote I/O systems enable engineers to distribute input and output modules throughout machinery while maintaining centralised PLC control over Ethernet communication. A single remote I/O adapter can support multiple slim modules, allowing flexible expansion of digital and analogue signals across an industrial automation system.

Digital input modules such as the URD-0800 are typically used to monitor status signals from sensors, limit switches and operator controls, allowing PLC programs to respond to real-time machine conditions.

Typical Applications

• Monitoring industrial sensors and switches.
• Machine status and safety signal detection.
• PLC control panel input expansion.
• Factory automation systems.
• Distributed PLC architectures.

Trusted by Automation Engineers

Unitronics UniStream remote I/O modules are widely used by machine builders and automation engineers to create scalable PLC-based automation systems.