The KEBA AR281 is a cutting-edge automation panel from KEBA's renowned HMI portfolio. Engineered for demanding industrial applications, it delivers reliable performance and exceptional visualization capabilities. This operator terminal combines a compact, sturdy design with advanced display technology, making it a preferred choice for machine builders and system integrators.
The AR281 features a 5.7-inch TFT color display with LED backlight, offering excellent readability even in bright ambient light. The screen supports intuitive touch operation, including gesture control and glove-friendly interaction. Its anti-glare surface and robust construction ensure long-term durability in harsh shop-floor conditions. Resolution options include QVGA (320 x 240) and VGA (640 x 480) to match various application needs.
At the heart of the AR281 lies a powerful embedded processor optimized for low power consumption and high graphics performance. It handles complex visualization tasks, data logging, and local preprocessing with ease. The device comes with ample onboard memory (typically 64 MB RAM and 128 MB Flash) and supports external storage via USB, ensuring smooth operation even with demanding applications.
The AR281 provides a comprehensive set of interfaces for seamless integration into automation ecosystems:
Ethernet (10/100 Mbps) for network communication and remote access
USB 2.0 host and device ports for peripherals and programming
Serial interfaces (RS232 and RS485) with electrical isolation
CAN bus for real-time control and device networking
Optional fieldbus modules supporting PROFINET, EtherNet/IP, and POWERLINK

Built for industrial environments, the AR261's front panel is rated IP65, providing complete protection against dust and water jets. The housing is rated IP20 at the rear. It operates reliably in temperatures ranging from -20°C to +60°C and withstands shocks and vibrations according to IEC 61131-2. The fanless design eliminates moving parts, reducing maintenance and ensuring silent operation.
Fully compatible with KEBA's engineering suite, the AR281 enables efficient development of HMI and control applications. The software supports a wide range of industrial protocols and includes pre-built widgets, alarm handling, and data logging functions. Engineers can leverage KEBA's mapp Technology to accelerate development and ensure code reusability across projects. The panel also supports OPC UA for easy data exchange with higher-level IT systems.
Thanks to its versatility, the KEBA AR281 is used across various industries:
Machine tools and metalworking
Plastics and injection molding machines
Packaging and material handling equipment
Robotics and handling systems
Building automation and HVAC control
It serves as a local operator panel, a remote visualization unit, or a gateway between field devices and control systems.
The KEBA AR281 complies with international standards including CE, UL, and cULus, ensuring its suitability for global deployment. It is manufactured under strict quality control and undergoes extensive testing to guarantee long-term reliability in mission-critical applications.



