Why Choose the Unitronics V350-35-TR20 Vision350 PLC + HMI?
The Unitronics V350-35-TR20 is a versatile PLC + HMI controller that combines advanced programmable logic control, integrated I/O and a high-quality 3.5-inch colour touchscreen within a compact industrial automation platform. As part of the trusted Vision350 series, it provides machine builders and automation engineers with a flexible solution for machine control, process monitoring and operator interaction.
Designed to reduce panel space, wiring complexity and overall installation costs, the V350-35-TR20 integrates digital inputs, relay outputs, high-speed transistor outputs and communication interfaces into a single controller. The integrated colour touchscreen enables operators to monitor machine status, acknowledge alarms and adjust process parameters through custom-designed HMI screens.
With 12 onboard inputs, 6 relay outputs, 2 high-speed transistor outputs and support for expansion up to 512 I/O points, the V350-35-TR20 is suitable for OEM machinery, packaging equipment, material handling systems and industrial automation applications requiring reliable control and visualisation.
Key Advantages
Integrated PLC and colour touchscreen HMI.
12 configurable onboard inputs.
6 relay outputs and 2 high-speed transistor outputs.
Supports analogue input and encoder functionality.
MicroSD card support for data logging and backups.
Optional Ethernet, CANbus and Profibus communication modules.
Expandable up to 512 I/O points.
24 V DC operation.
Flexible Machine Automation with Integrated HMI
The Unitronics V350-35-TR20 delivers an ideal balance of control, monitoring and communication capabilities. The integrated PLC executes complex automation logic while the colour touchscreen provides operators with intuitive access to alarms, trends, recipes and machine diagnostics.
Its combination of relay outputs and high-speed transistor outputs makes the controller suitable for both general-purpose machine control and applications requiring pulse outputs, PWM control or high-speed switching. Expansion support enables the system to grow alongside application requirements without replacing the controller.
Typical Applications
OEM machinery and equipment manufacturing.
Packaging and production systems.
Material handling and conveyor control.
Motion control and encoder feedback applications.
Water and wastewater treatment systems.
Food and beverage processing equipment.
Industrial automation and process monitoring.
Technical Specifications
Current
2 A
Voltage
24 V
IP Rating
IP65
Series
Vision350
Product type
PLC + HMI controller
Display type
TFT colour touchscreen
Display size
3.5 inch
Display resolution
320 × 240 pixels
Colours
65,536 colours
Digital inputs
12 configurable inputs
Analogue inputs
Up to 2 configurable analogue inputs
High-speed inputs
3 HSC / shaft encoder inputs
Relay outputs
6
Transistor outputs
2 high-speed NPN outputs
Supply voltage
24 V DC
Operating voltage range
20.4-28.8 V DC
Communication ports
RS232, RS485, Mini-USB
Application memory
1 MB
I/O expansion
Up to 512 I/O points
Protection rating
IP65 / IP66 / NEMA 4X front panel
Operating temperature
0°C to +50°C
Mounting type
Panel mounting
Dimensions
Approx. 109 × 114.1 × 68 mm
Weight
Approx. 300 g
Frequently Asked Questions
What is the Unitronics V350-35-TR20 used for?
The V350-35-TR20 is a PLC and colour touchscreen HMI controller designed for machine automation, process control and industrial monitoring applications.
How many onboard inputs and outputs are included?
The controller provides 12 inputs, 6 relay outputs and 2 high-speed transistor outputs.
Does the controller support analogue signals?
Yes. Selected inputs can be configured to accept analogue voltage or current signals.
Can the V350-35-TR20 be expanded?
Yes. The controller supports local and remote expansion modules and can support up to 512 I/O points.
What communication options are available?
The controller includes RS232 and RS485 communications and supports optional Ethernet, CANbus and Profibus communication modules.
Trusted by Automation Engineers Worldwide
The Unitronics Vision350 series is widely used throughout industry where engineers require integrated PLC control, colour touchscreen visualisation, flexible I/O configurations and scalable expansion capabilities.
Current
2 A
Voltage
24 V
IP Rating
IP65
Series
Vision350
Product type
PLC + HMI controller
Display type
TFT colour touchscreen
Display size
3.5 inch
Display resolution
320 × 240 pixels
Colours
65,536 colours
Digital inputs
12 configurable inputs
Analogue inputs
Up to 2 configurable analogue inputs
High-speed inputs
3 HSC / shaft encoder inputs
Relay outputs
6
Transistor outputs
2 high-speed NPN outputs
Supply voltage
24 V DC
Operating voltage range
20.4-28.8 V DC
Communication ports
RS232, RS485, Mini-USB
Application memory
1 MB
I/O expansion
Up to 512 I/O points
Protection rating
IP65 / IP66 / NEMA 4X front panel
Operating temperature
0°C to +50°C
Mounting type
Panel mounting
Dimensions
Approx. 109 × 114.1 × 68 mm
Weight
Approx. 300 g
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...