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 Integrated Touchscreen HMI?

The Unitronics SM35-J-RA22 is a compact and feature-rich PLC with integrated colour touchscreen HMI, designed to simplify industrial automation, machine control and process monitoring applications. As part of the advanced Unitronics Samba series, it combines a programmable logic controller and operator interface into a single device, reducing wiring complexity, panel space requirements and installation costs.

Designed for OEM machine builders, control panel manufacturers and automation engineers, the SM35-J-RA22 provides powerful control functionality alongside an intuitive 3.5-inch colour touchscreen. The integrated architecture enables rapid deployment of automation projects while providing operators with real-time monitoring, control and diagnostics from a single interface.

Featuring 12 digital inputs, 8 relay outputs, 2 analogue inputs, 2 PT100/thermocouple inputs and 2 analogue outputs, the SM35-J-RA22 offers exceptional flexibility for machine automation, HVAC systems, pumping stations, packaging equipment and industrial process control applications. Its rugged industrial design ensures dependable operation in demanding environments.

Key Advantages

• Integrated PLC and colour touchscreen HMI in a single compact controller.
• 3.5-inch TFT colour touchscreen display for intuitive operation.
• 12 digital inputs and 8 relay outputs for versatile machine control.
• Built-in analogue, PT100 and thermocouple inputs.
• 2 analogue outputs for process control applications.
• Supports MODBUS and optional Ethernet, CANbus and serial communications.
• Reduces panel space, wiring and overall system costs.

Key Features

• Unitronics Samba PLC + HMI platform.
• 3.5-inch TFT full-colour touchscreen display.
• 320 × 240 pixel resolution.
• 12 digital inputs including high-speed counter input.
• 8 relay outputs.
• 2 analogue inputs for voltage and current signals.
• 2 PT100 / thermocouple temperature inputs.
• 2 analogue outputs.
• Integrated RS232 programming port.
• Expandable communications with Ethernet, CANbus and RS485 modules.

Technical Specifications

• Manufacturer: Unitronics
• Series: Samba PLC + HMI
• Model: SM35-J-RA22
• Product type: PLC with integrated touchscreen HMI
• Supply voltage: 24 VDC
• Operating voltage range: 20.4 to 28.8 VDC
• Display size: 3.5-inch TFT colour touchscreen
• Display resolution: 320 × 240 pixels
• Digital inputs: 12
• Analogue inputs: 2
• Temperature inputs: 2 PT100 / Thermocouple inputs
• Relay outputs: 8
• Analogue outputs: 2
• Communication: RS232 onboard, optional Ethernet, RS485 and CANbus
• Protection rating: IP65 / NEMA 4X front panel
• Operating temperature: 0°C to 50°C
• Dimensions (H × W × D): 109 × 114.1 × 68 mm
• Weight: Approx. 0.4 kg

Advanced Automation in a Compact Platform

The SM35-J-RA22 combines powerful PLC control with an integrated touchscreen HMI, enabling operators to manage machine functions, process variables and alarms from a single interface. This all-in-one design reduces system complexity while improving usability and maintenance efficiency.

Using Unitronics VisiLogic software, engineers can develop both PLC logic and HMI applications within a single programming environment. This simplifies development and commissioning while providing advanced features such as data logging, alarms, PID control, recipe management and remote communication capabilities.

Typical Applications

• Packaging and assembly machinery.
• OEM machine automation.
• Pumps and water treatment systems.
• HVAC and building automation.
• Food and beverage processing equipment.
• Industrial process monitoring and control.
• Material handling and conveyor systems.

Trusted by Automation Engineers Worldwide

Unitronics Samba controllers are widely used by OEMs, machine builders and automation professionals who require reliable PLC control, integrated HMI functionality and flexible communications in a compact industrial controller.