Many procurement teams check CX8091 against Cx7080 Beckhoff, Beckhoff Cx8190 and Beckhoff Cx5120 before signing purchase orders, verifying quality, compliance, and after-sales support availability.
CX8091 - Beckhoff Embedded PCs
CX8091 is a compact Embedded PC from Beckhoff, built for scalable automation solutions with integrated PLC functionality and Ethernet connectivity. The CX8091 Embedded PC is ideal for engineers automating distributed control systems with real-time communication and modular I/O support.
| Brand | Beckhoff |
| Product Type | Embedded PCs |
| Product | CX8091 |
CX8091 Beckhoff Embedded PCs Technical Specifications
| Specification | Value |
|---|---|
| Processor | Arm9â¢, 400 MHz |
| Number of cores | 1 |
| Flash memory | slot for microSD card, 512 MB included (optionally expandable) |
| Main memory | 64 MB DDR2 RAM (not expandable) |
| 1-second UPS | integrated (1 MB on microSD card) |
| Interfaces | 1 x RJ45 10/100 Mbit/s, 1 x USB device (behind the front flap), 1 x bus interface |
| Cooling | passive |
| Bus interface | 2 x RJ45 (switched) |
| Diagnostics LED | 1 x TC status, 1 x WD, 1 x error |
| Clock | internal battery-backed clock for time and date (battery behind the front flap, exchangeable) |
| Operating system | Windows Embedded CE 6 |
| Control software | TwinCAT 2 PLC |
| I/O connection | E-bus or K-bus, automatic recognition |
| Power supply | 24 V DC (-15%/+20%) |
| Current supply E-bus/K-bus | 2 A |
| Max. power consumption | 3 W |
| Max. power consumption E-bus/K-bus | 10 W (5 V/max. 2Â A) |
| Dimensions (W x H x D) | 64 mm x 100 mm x 73 mm |
| Weight | approx. 180 g |
| Operating temperature | 0…55°C |
| Storage temperature | -25…+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protection rating | IP20 |
| Approvals/markings | CE, UL, ATEX, IECEx, cFMus |
| Ex marking | ATEX: II 3 G Ex nA IIC T4 Gc II 3 D Ex tc IIIC T135 °C Dc IECEx: Ex nA IIC T4 Gc Ex tc IIIC T135 °C Dc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
CX8091 by Beckhoff is a high-reliability Embedded PC designed for control tasks in compact, decentralized automation systems. Powered by a 400 MHz Arm9™ processor with 64 MB DDR2 RAM and a 512 MB microSD card, this model supports TwinCAT 2 PLC on Windows Embedded CE 6, ensuring deterministic logic execution and real-time control across industrial applications.
This unit features a 1-second UPS to preserve critical data during brief power failures, along with a battery-backed real-time clock for accurate timekeeping even during outages. The CX8091 Embedded PC includes two switched RJ45 Ethernet ports for flexible topologies, allowing seamless integration of field devices and I/O modules. It also includes a USB interface and supports automatic recognition of E-bus or K-bus for modular I/O expansion, reducing configuration time in machine-building applications.
Operating within a temperature range of 0°C to 55°C and built with passive cooling, the CX8091 maintains long-term performance in harsh conditions. With a 24 V DC power supply (±20% tolerance), an IP20 protection rating, and compliance with EN 60068 vibration/shock resistance and EN 61000-6-2/6-4 EMC standards, this device is engineered for durability. Its global certifications, including CE, UL, ATEX, IECEx, and cFMus, make it suitable for regulated and hazardous zones. Whether used in factory automation, energy systems, or infrastructure, the Beckhoff CX8091 Embedded PC is a trusted choice for efficient and modular control. Learn more at the official Beckhoff page: Beckhoff CX8091 Embedded PCs.
