SM70-J-RA22 Unitronics Samba 7" colour touchscreen HMI and PLC with onboard I/O configurations

Why Choose the Unitronics SM70-J-RA22 PLC with Integrated Touchscreen HMI?

The Unitronics SM70-J-RA22 is a high-performance PLC with integrated 7-inch colour touchscreen HMI, designed for advanced machine control, process automation and industrial monitoring applications. As part of the powerful Unitronics Samba series, it combines a programmable logic controller, operator interface and onboard I/O into a single compact platform, reducing wiring complexity, panel space requirements and overall system costs.

Designed for OEM machine builders, system integrators and automation engineers, the SM70-J-RA22 delivers powerful control functionality alongside a large high-resolution touchscreen display. Its all-in-one architecture enables both PLC programming and HMI development within a single software environment, simplifying engineering, commissioning and long-term maintenance.

Featuring 12 digital inputs, 2 analogue inputs, 2 PT100/thermocouple inputs, 8 relay outputs and 2 analogue outputs, the SM70-J-RA22 is ideally suited for packaging machinery, water treatment systems, HVAC equipment, process control installations and OEM automation projects. The controller operates from a 24 VDC power supply and supports optional Ethernet, RS485 and CANbus communications.

Key Advantages

• Integrated PLC and 7-inch colour touchscreen HMI in one device.
• 12 digital inputs and 8 relay outputs.
• Built-in analogue and temperature sensing capability.
• 2 analogue outputs for process control applications.
• Large display improves machine monitoring and operator interaction.
• Supports Ethernet, serial and CANbus communication expansion.
• Reduces hardware costs, wiring and panel space requirements.

Key Features

• Unitronics Samba PLC + HMI platform.
• 7-inch TFT colour touchscreen display.
• 800 × 480 pixel resolution.
• 12 digital inputs including 1 high-speed counter/shaft encoder input.
• 2 analogue inputs.
• 2 PT100 / thermocouple inputs.
• 8 relay outputs.
• 2 analogue outputs.
• USB programming interface.
• MODBUS communication support.
• Real-time clock with battery backup.
• Programming via Unitronics VisiLogic software.

Technical Specifications

• Manufacturer: Unitronics
• Series: Samba PLC + HMI
• Model: SM70-J-RA22
• Product type: PLC with integrated touchscreen HMI
• Supply voltage: 24 VDC
• Operating voltage range: 20.4 to 28.8 VDC
• Display size: 7-inch TFT colour touchscreen
• Display resolution: 800 × 480 pixels
• Digital inputs: 12
• Analogue inputs: 2
• PT100 / Thermocouple inputs: 2
• Relay outputs: 8
• Analogue outputs: 2
• High-speed counter: 30 kHz shaft encoder / HSC input
• Communication: USB, optional Ethernet, RS232/RS485 and CANbus
• Protection rating: IP65/IP66/NEMA 4X front panel
• Operating temperature: 0°C to 50°C
• Application memory: Approx. 192 kB
• Mounting type: Panel mount

Advanced Control and Process Monitoring

The SM70-J-RA22 combines PLC control, process monitoring and operator interaction within a single automation platform. Integrated analogue inputs, temperature inputs and analogue outputs allow direct connection to sensors, transmitters, temperature probes and control devices without requiring additional expansion hardware.

Using Unitronics VisiLogic software, engineers can develop PLC logic and HMI applications within a unified environment. Advanced functionality includes data logging, PID control, alarm management, recipe handling, remote access and industrial communications, making the controller suitable for demanding industrial automation projects.

Typical Applications

• Packaging and assembly machinery.
• Water treatment and pumping systems.
• HVAC and building automation.
• Industrial process control systems.
• Food and beverage production equipment.
• Material handling and conveyor automation.
• OEM machine building projects.

Trusted by Automation Engineers Worldwide

Unitronics Samba controllers are widely used by OEMs, machine builders and automation professionals who require advanced control functionality, integrated touchscreen operation and flexible industrial communications within a compact controller platform.