What Is the B&R Power Panel 300?
The B&R Power Panel 300 is an industrial panel PC / HMI (human-machine interface) from B&R Industrial Automation, combining a touchscreen display with an embedded controller in a single panel-mount unit. According to B&R's documentation, Power Panel devices connect to industrial networks through an Ethernet 10/100 Mbit interface over RJ45 twisted-pair cabling, and also provide an RS232 serial COM port that is primarily used for programming with Automation Studio and can serve as a general interface for third-party connections. Visualization projects are typically transferred over Ethernet.
B&R describes the Power Panel family as supporting terminal mode, where a Power Panel 400 can handle control and visualization tasks on one side of a machine while a Power Panel 300 manages a second visualization application elsewhere on the same machine — giving system integrators more freedom in how they distribute HMI functions. The series is documented in a detailed user manual (covering technical data, commissioning and maintenance) that remains a common reference for engineers and system integrators maintaining installed automation systems.
Typical Specifications and Architecture
Panel PCs in this class generally pair an x86 or ARM-based embedded controller with an integrated touchscreen, fanless or low-noise cooling, and industrial I/O. Key characteristics include:
| Feature | Typical Panel PC / HMI Class |
|---|---|
| Display | Integrated touchscreen (resistive or capacitive) |
| Networking | Ethernet 10/100 (RJ45) |
| Serial | RS232 COM for programming / third-party devices |
| Programming | Vendor engineering suite (e.g., Automation Studio) |
| Mounting | Panel-mount, machine-integrated |
| Environment | Designed for demanding industrial environments |
The exact processor, memory, storage and screen sizes vary by model and configuration, so always confirm against the specific unit's technical data sheet.
Use Cases and Applications
Panel PCs and HMIs such as the Power Panel 300 are used where an operator needs a display and control interface directly on the machine: production lines, packaging equipment, plastics and textile machinery, energy systems, and other automation cells. Common tasks include machine visualization, recipe and setpoint entry, alarm display, and acting as a terminal to a central controller. Because these units run for years in dusty, hot or vibrating environments, reliability, wide-temperature tolerance and long-term spare-part availability matter more than raw benchmark speed.
Modern Alternatives for Panel and Machine Visualization
If you are specifying new equipment, expanding an existing line, or looking for a currently available panel/embedded computer for HMI-style workloads, modern fanless industrial computers and all-in-one panel PCs offer a practical path. They run standard operating systems (Windows 11 IoT/Pro, Ubuntu Linux, or embedded Linux), support Ethernet and serial connectivity, and are easy to integrate with SCADA, web-based dashboards and open automation stacks. When replacing or supplementing an installed panel, check the communication protocols, I/O and mounting dimensions of the existing machine so the new unit fits the same footprint and wiring.
Thinvent Products for Industrial Panel and Machine Applications
Thinvent manufactures fanless industrial computers, mini PCs, thin clients and all-in-one panel PCs built for continuous operation in factory and field environments. Our all-in-one PCs provide an integrated display-and-compute unit for HMI-style visualization, while our fanless industrial PCs and mini PCs handle control, gateway and edge tasks with Intel processors, dual Ethernet options, serial connectivity, and a choice of Windows 11 Pro, Ubuntu Linux or no-OS configurations. Thinvent systems are designed for dust, heat and 24×7 duty cycles — a dependable, currently available platform for machine visualization, SCADA terminals and industrial automation projects worldwide.
