SM43-J-T20 Unitronics Samba 4.3" colour touchscreen HMI and PLC with onboard I/O configurations

SM43-J-T20 Unitronics Samba 4.3″ colour touchscreen HMI and PLC with onboard I/O configurations

Unitronics SM43-J-T20 Samba PLC with integrated 4.3 inch colour touchscreen HMI, 12 digital inputs, 2 analogue inputs and 8 transistor outputs for industrial automation applications.

SKU: SM43-J-T20Alt SKU: SM43JT20MPN: SM43-J-T20
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List Price £337.76 ex VAT
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Why Choose the Unitronics SM43-J-T20 PLC with Integrated Touchscreen HMI?

The Unitronics SM43-J-T20 is a compact and powerful PLC with integrated colour touchscreen HMI designed for industrial automation, machine control and OEM applications. As part of the advanced Unitronics Samba series, it combines a programmable logic controller, operator interface and onboard I/O into a single platform, reducing hardware requirements, simplifying installation and lowering overall project costs.

Designed for machine builders, automation engineers and control panel manufacturers, the SM43-J-T20 delivers reliable PLC performance alongside a high-resolution 4.3-inch TFT colour touchscreen display. Its integrated architecture enables both PLC logic and HMI development within a single software environment, helping reduce engineering time while simplifying commissioning and maintenance.

Featuring 12 digital inputs, 2 analogue inputs and 8 transistor outputs, the SM43-J-T20 is ideally suited for packaging machinery, conveyor systems, pumping stations, HVAC equipment and industrial process control applications. Operating from a 24 VDC power supply, it provides a cost-effective automation solution with support for optional industrial communication modules.

Key Advantages

  • Integrated PLC and colour touchscreen HMI in a single compact device.
  • 4.3-inch TFT colour touchscreen display.
  • 12 digital inputs and 8 transistor outputs.
  • Built-in analogue input capability.
  • Reduces panel space requirements and installation complexity.
  • Supports optional Ethernet, RS485 and CANbus communications.
  • Ideal for OEMs, machine builders and industrial automation projects.

Key Features

  • Unitronics Samba PLC + HMI platform.
  • 4.3-inch TFT full-colour touchscreen display.
  • 480 × 272 pixel resolution.
  • 12 digital inputs including high-speed counter functionality.
  • 2 analogue inputs.
  • 8 transistor outputs.
  • USB programming and communication port.
  • Integrated real-time clock.
  • MODBUS communication support.
  • Programming via Unitronics VisiLogic software.

Efficient Machine Control and Operator Interaction

The SM43-J-T20 combines PLC functionality and touchscreen operator control within a single automation platform. This integrated design reduces hardware costs while providing operators with real-time access to machine status, alarms, production data and process parameters.

Using Unitronics VisiLogic software, engineers can create both PLC applications and HMI screens within a unified development environment. Advanced functionality includes data logging, PID control, alarm management, recipe handling and communication with external devices, making the controller suitable for a wide range of industrial applications.

Typical Applications

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

Technical Specifications

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Analogue I/O 2 AI / 0 AO
Product Series Unitronics Samba
Screen Size 4.3"
Coil / Supply Voltage 24 V DC
Display Colour touchscreen
Digital Inputs 12
Digital Outputs 8
Voltage 24 V
IP Rating IP66
Series Samba PLC + HMI
Product type PLC with integrated touchscreen HMI
Supply voltage 24 VDC
Operating voltage range 20.4 to 28.8 VDC
Display size 4.3-inch TFT colour touchscreen
Display resolution 480 × 272 pixels
Digital inputs 12
Analogue inputs 2 configurable inputs
Digital outputs 8 transistor outputs
Output type PNP transistor
Protection rating IP66 / NEMA 4X front panel
Operating temperature 0°C to 50°C
Dimensions (H × W × D) 136 × 105.1 × 61.3 mm
Weight Approx. 360 g

Frequently Asked Questions

What is the Unitronics SM43-J-T20 used for?

The SM43-J-T20 is used for industrial automation and machine control applications requiring integrated PLC functionality and touchscreen operator control.

How many inputs and outputs does the controller provide?

The controller includes 12 digital inputs, 2 analogue inputs and 8 transistor outputs.

What display does the controller feature?

The unit features a 4.3-inch TFT colour touchscreen display with a resolution of 480 × 272 pixels.

Can communication options be expanded?

Yes. Optional Ethernet, RS232/RS485 and CANbus communication modules can be added to extend connectivity.

What software is used to program the controller?

The SM43-J-T20 is programmed using Unitronics VisiLogic software, enabling both PLC programming and HMI development within a single software environment.

Trusted by Automation Engineers Worldwide

Unitronics Samba controllers are widely used by machine builders and automation professionals seeking reliable PLC control, integrated touchscreen operation and flexible communications within a compact industrial platform.