Unitronics V350-35-B1 Vision350 PLC and HMI controller featuring a 3.5 inch colour touchscreen, integrated communications and scalable I/O expansion capabilities.
SKU:V350-35-B1Alt SKU:V35035B1MPN:V350-35-B1
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Why Choose the Unitronics V350-35-B1 Vision350 PLC + HMI?
The Unitronics V350-35-B1 is an advanced PLC + HMI controller that combines powerful programmable logic control with a vibrant 3.5-inch colour touchscreen interface. As part of the renowned Unitronics Vision350 series, it provides a compact, cost-effective automation platform for machine builders, OEMs and industrial control engineers.
Designed for applications requiring flexible I/O expansion, the V350-35-B1 features a colour touchscreen operator panel and integrated PLC functionality without onboard I/O, allowing users to configure the exact expansion modules required for their application. This scalable architecture makes the controller suitable for both small and complex automation projects.
With support for local and remote I/O expansion, built-in communications and advanced HMI capabilities, the Vision350 delivers reliable machine control, process monitoring and operator interaction within a single compact device. The platform can support up to 512 I/O points through expansion modules, providing excellent flexibility for future system growth.
Key Advantages
Integrated PLC and colour touchscreen HMI.
3.5-inch TFT colour touchscreen display.
No fixed onboard I/O, allowing customised expansion.
Expandable up to 512 I/O points.
Built-in RS232 and RS485 communications.
Supports CANbus and Ethernet expansion.
Compact panel-mounted design for industrial control systems.
Ideal for OEM machinery and process automation applications.
Key Features
Unitronics Vision350 PLC + HMI.
3.5-inch TFT colour touchscreen.
320 × 240 pixel QVGA display resolution.
65,536 colour display capability.
5 programmable function keys.
Integrated RS232/RS485 serial communication.
Optional Ethernet and CANbus communication modules.
1 MB application logic memory.
Micro SD card support for data logging and backups.
Supports local and remote I/O expansion modules.
12/24 V DC operation.
Industrial panel mounting design.
Flexible Automation Platform for Expanding Systems
The Unitronics V350-35-B1 is designed for applications where flexibility and scalability are critical. By eliminating fixed onboard I/O, engineers can configure the controller with the exact combination of expansion modules required for the machine or process, reducing unnecessary hardware costs and simplifying future upgrades.
The integrated colour touchscreen provides operators with intuitive access to machine status, alarms, recipes, trends and production data, while the PLC executes sophisticated control logic. Combined with expansion support and advanced communications, the Vision350 platform delivers a powerful solution for modern industrial automation projects.
Typical Applications
OEM machinery and equipment manufacturing.
Packaging and processing systems.
Material handling and conveyor automation.
Water and wastewater treatment plants.
Food and beverage production equipment.
Building management and utility control.
Industrial process monitoring and control.
Technical Specifications
Voltage
24 V
IP Rating
IP65
Series
Vision350
Product type
PLC + HMI controller
Display type
TFT LCD colour touchscreen
Display size
3.5 inch
Display resolution
320 × 240 pixels
Colours
65,536 colours
Touchscreen
Resistive analogue touchscreen
Function keys
5 programmable keys
Application memory
1 MB
Data tables
120 KB dynamic RAM, 192 KB fixed RAM
Supply voltage
12/24 V DC
Operating voltage range
10.2-28.8 V DC
Communication ports
RS232/RS485
Expansion communications
Ethernet, CANbus, additional serial ports
I/O expansion
Up to 512 I/O points
Protection rating
IP65 front panel mounted
Operating temperature
0°C to +50°C
Mounting type
Panel mounting
Frequently Asked Questions
What is the Unitronics V350-35-B1 used for?
The V350-35-B1 is a combined PLC and colour touchscreen HMI used for machine control, process automation and industrial monitoring applications.
Does the V350-35-B1 include onboard I/O?
No. The V350-35-B1 is supplied without onboard I/O, allowing users to add the required local or remote I/O expansion modules.
What size display does the controller feature?
The controller includes a 3.5-inch TFT colour touchscreen with a resolution of 320 × 240 pixels.
How many I/O points can be supported?
Using expansion modules, the Vision350 platform can support up to 512 I/O points.
What communication options are available?
The controller includes RS232/RS485 communications and can be expanded with Ethernet, CANbus and additional serial communication modules.
Trusted by Automation Engineers Worldwide
The Unitronics Vision350 series is widely used in industrial automation systems where engineers require a flexible PLC and HMI platform with advanced visualisation, communications and scalable I/O expansion capabilities.
Voltage
24 V
IP Rating
IP65
Series
Vision350
Product type
PLC + HMI controller
Display type
TFT LCD colour touchscreen
Display size
3.5 inch
Display resolution
320 × 240 pixels
Colours
65,536 colours
Touchscreen
Resistive analogue touchscreen
Function keys
5 programmable keys
Application memory
1 MB
Data tables
120 KB dynamic RAM, 192 KB fixed RAM
Supply voltage
12/24 V DC
Operating voltage range
10.2-28.8 V DC
Communication ports
RS232/RS485
Expansion communications
Ethernet, CANbus, additional serial ports
I/O expansion
Up to 512 I/O points
Protection rating
IP65 front panel mounted
Operating temperature
0°C to +50°C
Mounting type
Panel mounting
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.
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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...