SM70-J-T20 Unitronics Samba 7" colour touchscreen HMI and PLC with onboard I/O configurations

Why Choose the Unitronics SM70-J-T20 PLC with Touchscreen HMI?

The Unitronics SM70-J-T20 is a powerful PLC with integrated 7-inch colour touchscreen HMI from the Unitronics Samba series. Designed for industrial automation and OEM machine control, it combines programmable logic control, operator interface and onboard I/O in a single compact device, reducing panel complexity and installation time.

The controller features a 7″ high-resolution TFT colour touchscreen that allows operators to monitor system status, adjust parameters and control processes directly from the machine interface. Integrated digital and analogue inputs together with fast transistor outputs enable direct connection to sensors, actuators and automation equipment without requiring external expansion modules.

Powered by a 24 V DC supply, the SM70-J-T20 supports ladder logic programming and HMI configuration using Unitronics’ VisiLogic software, providing engineers with an integrated environment for automation programming, diagnostics and machine interface design.

Key Advantages

• PLC and 7″ touchscreen HMI integrated in a single automation controller.
• Large colour display improves machine monitoring and operator interaction.
• Integrated digital and analogue inputs for flexible sensor connectivity.
• High-speed transistor outputs suitable for fast switching and PWM control.
• Supports industrial communication protocols including Modbus and CANbus.
• Compact design reduces control panel space and wiring complexity.

Key Features

• Samba series PLC with integrated colour touchscreen HMI.
• 7″ TFT LCD colour display with resistive touchscreen interface.
• 10 digital inputs including high-speed counter capability.
• 2 analogue / digital inputs configurable for 0–10 V or 4–20 mA signals.
• 8 transistor outputs with PWM capability.
• Mini-USB programming interface.
• Optional communication modules including Ethernet, RS-485 and CANbus.
• Integrated alarm screens, trends and data logging capability.

Technical Specifications

• Manufacturer: Unitronics
• Series: Samba PLC + HMI
• Model: SM70-J-T20
• Display: 7″ colour TFT touchscreen
• Resolution: approx. 800 × 480 pixels
• Power supply: 24 V DC (20.4–28.8 V operating range)
• Digital inputs: 10 inputs including high-speed counter
• Analogue inputs: 2 configurable inputs
• Digital outputs: 8 transistor outputs
• High-speed inputs: up to 3 HSC / shaft-encoder inputs
• Communication: RS-232 and USB programming interface with optional Ethernet, RS-485 and CANbus modules
• Operating temperature: 0 °C to 50 °C
• Protection rating: IP65 / IP66 / NEMA 4X front panel when panel mounted

Integrated PLC and HMI Automation Platform

The Unitronics Samba controller family integrates programmable logic control with a graphical operator interface in a single compact device. This architecture reduces component count while providing advanced functionality including alarms, trending graphs, PID control loops and communication capabilities for modern industrial automation environments.

Typical Applications

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