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Beckhoff CX8080

The Beckhoff CX8080 is an embedded PC/controller with an Arm9 400 MHz processor, 64 MB DDR2 RAM, and Windows Embedded CE 6. It has RS232 and RS485 serial interfaces on a 9-pin D-sub plus an Ethernet port for programming. It runs TwinCAT 2 PLC software and automatically detects connected E-bus or K-bus terminals at startup.

Source checked9/9 values · 2026-10-25Beckhoff AutomationEmbedded PC
CX8080X11 × ETHERNETArm9, 400 MHz24 V DC (-15%/+20%)IP20CX8080 · FRONTSchematic · port count from spec
IP rating
IP20
Weight
0.18kg

Specification

1 source
Categoryembedded pc
Ethernet ports1
ProcessorArm9, 400 MHz
Supply voltage24 V DC (-15%/+20%)
Power consumption0.003 kW
Operating temp min0 °C
Operating temp max55 °C

Quick answers

How much does the Beckhoff CX8080 weigh?
0.18 kg, per Embedded PC with Arm9™ and RS232/RS485 (beckhoff.com).
What is the IP rating of the Beckhoff CX8080?
IP20, per Embedded PC with Arm9™ and RS232/RS485 (beckhoff.com).

Study notes

  • Main memory is 64 MB DDR2 RAM (not expandable); flash memory uses a microSD card slot with 512 MB included (optionally expandable).
  • Integrated 1-second UPS with 1 MB on microSD card; battery-backed real-time clock with exchangeable battery behind the front flap.
  • Serial bus interface: 9-pin D-sub with 1 x RS232 and 1 x RS485; transmission rate 300 baud…115 kbaud.
  • Programming languages: IEC 61131-3; control software: TwinCAT 2 PLC; web visualization and online change supported.
  • Other interfaces: 1 x USB device behind the front flap and 1 x bus interface.
  • E-bus or K-bus terminals can be series-connected and are automatically recognized at startup; E-bus/K-bus current supply is 2 A.
  • Cooling is passive; dimensions 64 mm x 100 mm x 73 mm.
  • 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.
  • Storage temperature range: -25…+85°C; relative humidity: 95%, no condensation.
  • Product status: regular delivery, not recommended for new projects; recommended alternative: CX8280.
  • Operating system: Windows Embedded CE 6; extended support end date has passed, so up-to-date security updates cannot be provided.
  • Options include microSD card capacities 16 GB, 32 GB, and 64 GB (some announced for 4th quarter 2026).

Safety

  • Approvals/markings stated: CE, UL, ATEX, IECEx, cFMus.
  • ATEX marking: II 3G Ex nA IIC T4 Gc; II 3D Ex tc IIIC T135°C Dc.
  • IECEx marking: Ex nA IIC T4 Gc; Ex tc IIIC T135°C Dc.
  • cFMus marking: Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, AEx ec IIC T4 Gc.
  • Relative humidity operating limit: 95%, no condensation.
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