Unitronics JZ20-R31 Jazz PLC and HMI controller featuring 18 digital inputs, 2 configurable digital and analogue inputs, 2 analogue inputs and 11 relay outputs for industrial automation applications.
£190.75
The Unitronics JZ20-R31 is a powerful and highly versatile all-in-one PLC and HMI controller from the proven Jazz® series. Combining a programmable logic controller, operator interface and extensive onboard I/O within a single compact unit, it provides a cost-effective solution for industrial automation, machine control and OEM equipment applications.
Designed for machine builders, control panel manufacturers and automation engineers, the JZ20-R31 simplifies system architecture by integrating PLC functionality and operator interaction into one device. Its built-in LCD display and keypad enable operators to monitor processes, adjust parameters and respond to alarms without requiring a separate HMI terminal.
Powered by a 24 V DC supply, the JZ20-R31 features 18 digital inputs, 2 configurable digital/analogue inputs, 2 analogue inputs and 11 relay outputs. This extensive onboard I/O capability makes it ideal for compact automation systems where flexibility and reliability are essential.
The JZ20-R31 delivers advanced control capabilities in a compact and economical package. By combining PLC functionality, operator interface and onboard I/O, it reduces hardware requirements while simplifying installation and maintenance.
Its generous I/O capacity allows a single controller to manage a wide variety of sensors, analogue signals and output devices. With support for MODBUS communications, high-speed counting and integrated operator messaging, the controller is suitable for both standalone machines and networked automation systems.
| Voltage | 24 V |
|---|---|
| IP Rating | IP65 |
| Series | Jazz® |
| Product type | PLC + HMI controller |
| Supply voltage | 24 V DC |
| Operating voltage range | 20.4 to 28.8 V DC |
| Digital inputs | 18 |
| Configurable digital / analogue inputs | 2 |
| Analogue inputs | 2 |
| Relay outputs | 11 |
| Relay type | SPST-NO |
| Maximum relay current | 3 A per output |
| Display | 2 × 16 character LCD |
| Keypad | 16 keys |
| High-speed counters | Up to 10 kHz |
| Memory | 48 KB ladder program memory |
| Protection rating | IP65 front panel |
| Operating temperature | 0°C to 50°C |
| Typical power consumption | 2.8 W |
| Battery backup | Approximately 7 years |
| Dimensions (H × W × D) | 117 × 89 mm panel cut-out |
| Mounting type | Panel mounting |
The JZ20-R31 is an integrated PLC and HMI controller designed for machine automation, process control and industrial equipment applications.
The controller includes 18 digital inputs, 2 configurable digital/analogue inputs, 2 analogue inputs and 11 relay outputs.
Yes. The controller supports high-speed counter inputs operating at frequencies up to 10 kHz.
The controller includes a built-in USB programming port, supports MODBUS communication and can be expanded using optional communication modules.
The JZ20-R31 is programmed using Unitronics U90™ Ladder software, available as a free download.
Unitronics Jazz PLC controllers are widely used by OEMs and automation engineers for delivering reliable machine control, integrated operator interfaces and cost-effective automation solutions across a broad range of industries.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...