JZ20-J-R31 Unitronics Jazz Textual display and keybord HMI and PLC with upto 40 onboard I/Os

Why Choose the Unitronics JZ20-J-R31 Jazz PLC with Integrated HMI?

The Unitronics JZ20-J-R31 is a compact micro PLC with an integrated operator interface, combining control logic and a user display in a single device. Part of the reliable Unitronics Jazz series, this controller is designed for small to medium industrial automation applications where space, simplicity and cost efficiency are important.

The controller integrates a 2-line × 16-character LCD display and a 16-key keypad, allowing operators to monitor machine status, enter parameters and control processes directly from the front panel. This eliminates the need for a separate HMI panel, simplifying system design and reducing installation costs.

With a versatile built-in I/O configuration including digital inputs, relay outputs and analogue inputs, the JZ20-J-R31 is well suited for machine control, process automation and equipment monitoring. Programming is performed using Unitronics U90 Ladder software, enabling engineers to create PLC logic and HMI screens within a single development environment.

The controller operates from a 24 V DC power supply and mounts directly into machine panels, offering a compact and dependable control solution for modern industrial equipment.

Key Advantages

• Combines PLC controller and operator interface in one device.
• Reduces system cost by eliminating the need for a separate HMI.
• Built-in keypad allows operators to control machines and enter parameters.
• Compact design ideal for small automation systems.
• Simple programming using Unitronics U90 Ladder software.
• Reliable solution for industrial machine control and monitoring.

Key Features

• Micro PLC with integrated operator interface.
• 2 × 16 character LCD display for machine messages and data.
• 16-key membrane keypad with programmable function keys.
• 16 digital inputs.
• 2 configurable analogue/digital inputs.
• 2 analogue inputs.
• 11 relay outputs for switching loads.
• USB programming interface.
• MODBUS communication support.
• Designed for compact industrial control systems.

Technical Specifications

• Manufacturer: Unitronics
• Series: Jazz PLC
• Model: JZ20-J-R31
• Controller type: Micro PLC with integrated HMI
• Display: 2 × 16 character LCD
• Keypad: 16-key membrane keypad
• Digital inputs: 16
• Analogue inputs: 2
• Configurable analogue/digital inputs: 2
• Relay outputs: 11
• Supply voltage: 24 V DC
• Communication: USB, MODBUS
• Programming software: Unitronics U90 Ladder
• Mounting: Panel mounting
• Operating temperature: approximately 0 °C to +50 °C
• Protection rating: IP65 (front panel when installed)

Compact PLC and HMI Control for Machines

Industrial automation systems often require both control logic and operator interaction. Integrated devices such as the Unitronics Jazz series provide a practical alternative to separate PLC and HMI systems by combining both functions into a single compact controller.

These controllers allow operators to monitor machine conditions, adjust settings and control processes directly from the front panel. This simplifies installation, reduces wiring and lowers system cost while maintaining reliable industrial performance.

Typical Applications

• Packaging and processing machines.
• Water treatment and pump control systems.
• HVAC and building automation.
• Conveyor and material handling equipment.
• Small production and assembly machines.

Trusted by Automation Engineers

Unitronics Jazz PLC controllers are widely used by machine builders and automation engineers for compact, cost-effective industrial control systems.