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 Touchscreen HMI?

The Unitronics SM70-J-RA22 is a high-performance PLC with integrated 7-inch colour touchscreen HMI from the Unitronics Samba series. Designed for industrial automation and OEM machine control, the controller combines PLC functionality, operator interface and onboard I/O into a single compact platform, simplifying control panel design while reducing wiring and installation complexity.

The device features a 7-inch TFT colour touchscreen display with high-resolution graphics that enables operators to monitor processes, configure parameters and interact with automation systems directly from the panel interface. With integrated digital, analogue and temperature inputs along with relay and analogue outputs, the SM70-J-RA22 connects directly to sensors, actuators and process instrumentation without requiring additional expansion modules.

Powered by a 24 V DC supply, the controller supports ladder logic programming and HMI development using the Unitronics Visilogic development environment, enabling engineers to design control logic, alarms, communication and operator screens within a single integrated software platform.

Key Advantages

• PLC and 7″ touchscreen HMI integrated into one compact automation controller.
• Large colour display improves machine monitoring and operator interaction.
• Integrated digital, analogue and temperature inputs for versatile automation control.
• Relay outputs suitable for switching industrial loads.
• Analogue outputs for process control signals.
• Supports industrial communication protocols including Modbus, CANbus and Ethernet.

Key Features

• Samba series PLC with built-in colour touchscreen HMI.
• 7″ TFT LCD colour display with resistive touchscreen interface.
• 12 digital inputs including high-speed counter / shaft-encoder capability.
• 2 analogue inputs configurable for voltage or current signals.
• 2 PT100 or thermocouple inputs for temperature measurement.
• 8 relay outputs for switching industrial loads.
• 2 analogue outputs for process control signals.
• Mini-USB programming interface and optional communication modules.

Technical Specifications

• Manufacturer: Unitronics
• Series: Samba PLC + HMI
• Model: SM70-J-RA22
• Display: 7″ TFT colour touchscreen
• Resolution: approx. 800 × 480 pixels
• Power supply: 24 V DC (20.4–28.8 V operating range)
• Digital inputs: 12 inputs including high-speed counter (30 kHz)
• Analogue inputs: 2 process inputs
• Temperature inputs: 2 PT100 / thermocouple inputs
• Digital outputs: 8 relay outputs (up to 3 A resistive load)
• Analogue outputs: 2 outputs
• Communication: USB and RS-232 with optional Ethernet, RS-485 and CANbus modules
• Application memory: approx. 192 kB program memory
• Operating temperature: 0 °C to 50 °C
• Protection rating: IP65 / IP66 / NEMA 4X front panel when panel mounted

Integrated PLC and HMI Automation Platform

Unitronics Samba controllers combine programmable logic control with a graphical operator interface in a single device. This integrated architecture simplifies automation system design while providing advanced capabilities such as data logging, alarms, PID control loops and remote communication features for industrial automation environments.

Typical Applications

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

Trusted by Automation Engineers

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