SM35-J-RA22 Unitronics Samba 3.5" colour touchscreen HMI and PLC with onboard I/O configurations

Why Choose the Unitronics SM35-J-RA22 PLC with Touchscreen HMI?

The Unitronics SM35-J-RA22 is a compact PLC with integrated colour touchscreen HMI from the Unitronics Samba series, designed for efficient automation control in small machines and industrial systems. Featuring a 3.5-inch colour touchscreen, the controller enables operators to monitor processes, adjust parameters and control equipment directly from a single panel-mounted device.

Powered by a 24 V DC supply, the SM35-J-RA22 integrates a versatile set of digital, analogue and temperature inputs together with relay and analogue outputs. This allows direct connection to sensors, actuators and process signals without requiring additional I/O modules, simplifying panel design and reducing system costs.

The Samba platform also combines PLC programming and HMI design within a single development environment, enabling engineers to implement control logic, alarms, data logging and operator interfaces quickly and efficiently.

Key Advantages

• PLC and touchscreen HMI combined in a single compact controller.
• 3.5″ full-colour touchscreen for intuitive operator interaction.
• Integrated digital, analogue and temperature inputs for flexible machine control.
• Relay and analogue outputs for switching loads and control signals.
• Supports Modbus communication for integration with PLC and automation networks.
• Compact design ideal for OEM machines and industrial control panels.

Key Features

• Samba series PLC with built-in colour touchscreen HMI.
• 3.5″ TFT colour touchscreen display.
• 12 digital inputs including high-speed counter capability.
• 2 analogue inputs for process signals.
• 2 PT100 / thermocouple temperature inputs.
• 8 relay outputs for switching loads.
• 2 analogue outputs for control signals.
• Mini-USB programming port and optional communication modules.

Technical Specifications

• Manufacturer: Unitronics
• Series: Samba PLC + HMI
• Model: SM35-J-RA22
• Display: 3.5″ TFT colour touchscreen
• Power supply: 24 V DC
• Digital inputs: 12 (including 1 high-speed counter / encoder input)
• Analogue inputs: 2 inputs
• Temperature inputs: 2 PT100 / thermocouple inputs
• Relay outputs: 8 relay outputs
• Analogue outputs: 2 outputs
• Communication: RS-232 onboard with optional RS-485, CANbus or Ethernet modules
• Operating temperature: approx. 0 °C to 50 °C
• Front protection: IP65 / NEMA4X when panel mounted

Integrated PLC and HMI Automation

Unitronics Samba controllers combine programmable logic control and operator interface functionality in a single device. This integrated design reduces system complexity while providing reliable machine control, process monitoring and user interaction in industrial environments.

Typical Applications

• OEM machine automation.
• Packaging and assembly equipment.
• HVAC and pump control systems.
• Conveyor and material handling equipment.
• Industrial process and temperature control.

Trusted by Automation Engineers

Unitronics Samba PLC controllers are widely used by machine builders and system integrators for reliable automation control with integrated touchscreen interfaces.