USC-B5-RA28 Unitronics Unistream PLC with 14 digital/2 analog inputs, 8 relay and 2 analog outputs

Why Choose the Unitronics USC-B5-RA28 UniStream PLC Controller?

The Unitronics USC-B5-RA28 is a versatile UniStream programmable logic controller (PLC) with built-in I/O designed for advanced industrial automation and machine control systems. As part of the UniStream Standard series, the controller integrates powerful processing capability with multiple input and output channels, providing a compact and flexible control platform for industrial machinery and process applications.

The USC-B5-RA28 includes a combination of digital, analogue and temperature inputs together with relay and analogue outputs, enabling direct integration with sensors, actuators and control equipment. With support for extensive industrial communication protocols and remote monitoring features, it provides a scalable automation solution for modern manufacturing environments.

UniStream PLCs also support Virtual HMI functionality, allowing operators and engineers to monitor and control machines remotely from PCs, mobile devices or dedicated displays without requiring a separate operator panel.

Key Advantages

• Integrated PLC CPU with built-in I/O for compact automation systems.
• Combination of digital, analogue and temperature inputs for flexible sensing.
• Relay outputs and analogue outputs for controlling industrial loads.
• Supports advanced communication protocols including Ethernet/IP, Modbus TCP and EtherCAT.
• Virtual HMI functionality enables remote monitoring and control.
• Expandable architecture supporting large distributed I/O networks.

Key Features

• UniStream PLC controller with integrated I/O.
• 14 digital inputs including high-speed counter channels.
• 2 analogue inputs supporting voltage and current signals.
• 2 temperature inputs for RTD and thermocouple sensors.
• 8 relay outputs for switching loads.
• 2 analogue outputs supporting voltage or current signals.
• 512 MB RAM with large internal system and user storage.
• Dual Ethernet ports for industrial networking.
• USB and Mini-USB ports for programming and connectivity.

Technical Specifications

• Manufacturer: Unitronics
• Series: UniStream PLC
• Model: USC-B5-RA28
• Controller type: PLC CPU with built-in I/O
• Memory: 512 MB RAM
• System storage: 3 GB system ROM + 1 GB user ROM
• Digital inputs: 14 — 24 V DC (sink/source, including high-speed counters)
• Analogue inputs: 2 — inputs (0–10 V / 0–20 mA / 4–20 mA)
• Temperature inputs: 2 — RTD / thermocouple inputs
• Digital outputs: 8 — relay outputs (SPST-NO)
• Analogue outputs: 2 — outputs (0–10 V / ñ10 V / 0–20 mA / 4–20 mA)
• Supply voltage: 20.4 to 28.8 V DC (24 V DC nominal)
• Communication ports: 2 — Ethernet RJ45, USB, Mini-USB
• Supported protocols: Ethernet/IP, Modbus TCP, EtherCAT, BACnet, RS-232, RS-485, CANopen
• I/O expansion: up to approximately 2048 I/O points
• Mounting: DIN rail
• Protection rating: IP20 / NEMA 1
• Operating temperature: −20 °C to +55 °C

Industrial PLC Control Systems

Programmable logic controllers form the foundation of modern industrial automation systems, providing reliable control of machines, production lines and industrial processes. Platforms such as the UniStream series combine powerful computing capability with flexible networking and scalable I/O architecture to support complex automation environments.

The USC-B5-RA28 offers a flexible control platform capable of integrating machine control, networking and monitoring functions within a single industrial controller.

Typical Applications

• Industrial machine automation and control.
• Packaging and production line management.
• Material handling and conveyor systems.
• Process monitoring and control systems.
• Smart manufacturing and factory automation.