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Unitronics UniStream 15.6 PLC HMI – Big Screen Control
The Unitronics UniStream 15.6 PLC HMI is designed to meet modern automation demands, combining a powerful programmable logic controller with a large, high-resolution touchscreen in one streamlined unit. Available now from LED Controls, the UniStream 15.6 gives machine builders, system integrators, and plant operators a serious upgrade in performance, flexibility, and usability.
What is a PLC HMI and what does the UniStream 15.6 do?
A PLC, or Programmable Logic Controller, is the industrial computer that controls machines and processes. It reads inputs from sensors, makes decisions based on a pre-set control program, and switches outputs such as motors, valves, and actuators. An HMI, or Human Machine Interface, is the method by which humans see what the system is doing and interact with it, usually via a screen or readout.
The UniStream 15.6 combines PLC and HMI into one device. So you get a real-time PLC for control tasks and a large 15.6 inch colour touchscreen for visualisation, alarms, data trends, and operator input. This means fewer components, simpler wiring, and a tidier control panel layout.
Why the 15.6 inch display makes a real difference
The 15.6 inch display offers a full HD resolution of 1366 x 768, which means your important information is clearer than ever, and complex machine layouts, production dashboards, and detailed data trends can be displayed without overcrowding the screen.
For operators, this means clearer graphics, larger touch targets, and less time switching between pages. For engineers, it allows more intuitive HMI designs that closely match the real process being controlled.
Faster performance for real-time control
The UniStream 15.6 Pro models use an enhanced real-time CPU designed for faster task execution. This means quicker response to inputs, smoother motion control, and more reliable handling of time-critical operations such as synchronised axes or high-speed counting. This performance boost is especially valuable in applications like packaging machinery, materials handling, and automated assembly, where timing accuracy directly affects product quality and throughput.
Flexible I/O that adapts to your application
UniStream 15.6 has no built-in I/O. Instead, it uses snap-on Uni-I/O modules, allowing you to configure input and output to your exact needs.
Inputs and outputs are the connection points between the PLC and the real world. Digital inputs read on or off signals from devices such as switches and sensors. Digital outputs switch loads like relays or contactors. Analogue inputs and outputs handle variable signals such as temperature, pressure, or speed.
With the UniStream 15.6, I/O can be mounted directly on the back of the panel using the UAG-BACK-IOADP adapter, or expanded remotely over Ethernet. This makes the system highly scalable and future-proof.
Advanced communications, including EtherCAT
The UniStream 15.6 Pro is the first UniStream Built-in controller to support EtherCAT via an optional master module. EtherCAT is a high-speed industrial communication protocol used for precise motion control and synchronised devices such as servo drives.
In addition to EtherCAT, the controller supports Ethernet, USB, CANbus, serial communications, and a wide range of industrial protocols including Modbus, Ethernet/IP, MQTT, and REST APIs. This makes it easy to integrate into both traditional factory systems and modern IIoT environments.
Programming and visualisation in one environment
All UniStream controllers are programmed using Unitronics UniLogic software. This single, free package is used to configure hardware, write PLC logic, design HMI screens, and set up communications. Having everything in one environment reduces development time and makes projects easier to maintain.
Built-in features such as data logging, trends, alarms, recipes, and secure user access are included as standard, so there is no need for third-party software or licences.
UniStream 15.6 available from LED Controls
The Unitronics UniStream 15.6 PLC HMI US15-B10-B1 is ideal for applications that need maximum performance, advanced communications, and flexible I/O expansion. It's available now from LED Controls as a standard package and with the optional inclusion of a built-in Unicloud Subscription, making it more suited to remote monitoring, data collection and cloud-connected systems.
A clear upgrade path for future automation
The Unitronics UniStream 15.6 builds on the strengths of earlier UniStream models while leaving their limitations in the past. Faster processing, a larger, clearer display, modular I/O, and advanced communications make it suitable for the demanding industrial applications of today and tomorrow.
For pricing, lead times, or application advice, contact the team at LED Controls or explore the full product details online.
