Revolution Pi Industrial IIoT Gateway and Edge Controller

KUNBUS is a German industrial communication company founded in 2008 in Denkendorf, with R&D offices in Ostfildern and Regensburg, and says it has produced more than one million communication devices. Its Revolution Pi brand, launched in 2016, brings the openness of the Raspberry Pi into control cabinets so that integrators can build IIoT gateways, edge devices and soft PLCs on standard Linux.

Revolution Pi devices are built on the Raspberry Pi Compute Module with a Debian-based Raspberry Pi OS and real-time patches. The RevPi Connect targets high-performance IT/OT tasks, RevPi Core suits limited cabinet space and RevPi Flat targets the energy sector with integrated I/O. The base modules connect via plug-in bridges to I/O modules and fieldbus gateway modules, and can be programmed with CODESYS, Node-RED, Python or C#. Users include machine builders, energy companies and system integrators.

• Raspberry Pi Compute Module base: Debian-derived OS with long-term support and continuous security updates.
• Device family: RevPi Connect, RevPi Core and RevPi Flat for different cabinet and energy uses.
• Soft PLC: real-time control to EN 61131-2, programmable with CODESYS.
• Open programming: Node-RED, Python and C# alongside web HMI tools such as Grafana.
• Modular expansion: plug-in bridges for I/O modules and fieldbus gateway modules.
• Industrial approvals: CE, UKCA and UL with EMC testing to IEC 61000-6-2 and 6-4.

A Vietnamese system integrator can use RevPi Connect as an IIoT gateway that reads machine signals and pushes OEE data to a dashboard. A solar or EV charging operator can deploy RevPi Flat for energy metering and control. Technical universities and training centers can teach PLC and IoT programming on one open platform.

Entry prices are published online, from EUR 266 for RevPi Core and EUR 418 for RevPi Connect, which helps small projects budget quickly. Open Linux and Raspberry Pi tooling let teams reuse existing software skills and libraries. Long-term support images with updates until 2030, automated security testing and CE, UKCA and UL certification reduce lifecycle risk. Modular I/O and gateway expansion avoids paying for unused hardware.

Open, Linux-based controllers are gaining ground as factories want to combine control, data collection and analytics on one device instead of separate PLCs and PCs. The EU Cyber Resilience Act is raising security expectations for connected industrial devices. Southeast Asian integrators favor affordable hardware with transparent pricing for retrofit projects in small and mid-sized plants.

KUNBUS was founded in 2008 in Denkendorf, Germany, and develops and manufactures Revolution Pi in Germany. Revolution Pi marks 10 years since its 2016 launch, and the company exhibits at SPS 2026 in Nuremberg. Devices carry CE, UKCA and UL certification and are being prepared for RED-DA and Cyber Resilience Act requirements.