Why Choose the Unitronics V120-22-R34 PLC with Integrated HMI?
The Unitronics V120-22-R34 is a powerful all-in-one Programmable Logic Controller (PLC) with integrated Human Machine Interface (HMI) designed for industrial automation, machine control and process monitoring applications. As part of the proven Unitronics Vision™ 120 series, it combines a graphic operator interface, onboard I/O, communication capabilities and advanced control functionality within a single compact platform.
Featuring a built-in 2.4-inch monochrome graphic LCD display and a durable 16-key keypad, the V120-22-R34 enables operators to monitor machine status, enter parameters and control processes without requiring a separate HMI terminal. This integrated approach reduces panel space, wiring complexity and overall system costs while maintaining excellent functionality.
With 20 digital inputs, 2 analogue inputs and 12 relay outputs, alongside dual RS232/RS485 communication ports and expansion capability, the V120-22-R34 is ideal for OEM machinery, packaging equipment, material handling systems and industrial automation projects requiring a versatile control solution.
Key Advantages
Integrated PLC and graphic HMI in a single compact device.
20 digital inputs, 2 analogue inputs and 12 relay outputs.
Built-in 2.4-inch graphic LCD display with keypad.
Dual RS232/RS485 communication ports.
Expandable up to 256 I/O points.
Supports data logging, alarms, recipes and PID control functions.
The Vision 120 platform combines powerful PLC control and HMI functionality into one compact device, enabling engineers to reduce engineering time and simplify automation system design. Applications are developed using Unitronics VisiLogic software, allowing ladder logic programming, communications setup and HMI development within a single programming environment.
The V120-22-R34 supports industrial communication protocols including MODBUS, CANopen and UniCAN networking. Its onboard I/O and expansion capability make it suitable for both standalone machines and larger automation systems requiring scalable control architectures.
Typical Applications
Packaging and processing machinery.
Conveyor and material handling systems.
Manufacturing automation.
Water and wastewater control.
Industrial process monitoring.
OEM machine building.
Factory automation systems.
Technical Specifications
Voltage
24 V
IP Rating
IP65
Series
Vision™ 120
Product type
PLC with integrated HMI
Display
2.4-inch monochrome graphic LCD
Resolution
128 × 64 pixels
Keypad
16-key membrane keypad
Digital inputs
20
Analogue inputs
2
High-speed counter inputs
3 configurable inputs
Relay outputs
12
Communication ports
2 × RS232/RS485 selectable
CANbus
Integrated isolated CANbus port
Supply voltage
24 V DC
Application memory
448 KB
Data tables
120 KB RAM
I/O expansion
Up to 256 I/O points
Protection rating
IP65 front panel mounted
Operating temperature
0°C to 50°C
Frequently Asked Questions
What is the Unitronics V120-22-R34 used for?
The V120-22-R34 is an integrated PLC and HMI controller used for industrial automation, machine control and process monitoring applications.
What onboard I/O does the controller provide?
The controller includes 20 digital inputs, 2 analogue inputs and 12 relay outputs.
What communication ports are available?
The V120-22-R34 includes two selectable RS232/RS485 communication ports and an integrated CANbus interface for industrial networking.
Can the controller be expanded?
Yes. The Vision 120 platform supports local and remote I/O expansion, allowing systems to grow up to approximately 256 I/O points.
What display does the controller use?
The unit features a 2.4-inch monochrome graphic LCD display with a 128 × 64 pixel resolution and a 16-key operator keypad.
Trusted by Automation Engineers Worldwide
Unitronics Vision controllers are widely deployed throughout industrial automation because they combine PLC control, operator interface functionality, communications and onboard I/O within a single compact and cost-effective platform.
Voltage
24 V
IP Rating
IP65
Series
Vision™ 120
Product type
PLC with integrated HMI
Display
2.4-inch monochrome graphic LCD
Resolution
128 × 64 pixels
Keypad
16-key membrane keypad
Digital inputs
20
Analogue inputs
2
High-speed counter inputs
3 configurable inputs
Relay outputs
12
Communication ports
2 × RS232/RS485 selectable
CANbus
Integrated isolated CANbus port
Supply voltage
24 V DC
Application memory
448 KB
Data tables
120 KB RAM
I/O expansion
Up to 256 I/O points
Protection rating
IP65 front panel mounted
Operating temperature
0°C to 50°C
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...