Beckhoff CX2020-0121 Embedded PC

The Beckhoff CX2020-0121 is a robust modular Embedded PC built for high-performance PLC and motion control applications in industrial automation. Equipped with a 1.4 GHz Intel® Celeron® 827E processor, the fanless design eliminates moving parts, enhancing reliability in challenging environments.

This unit comes standard with 2 GB DDR3 RAM (expandable to 4 GB), a CFast flash memory card, dual Gigabit Ethernet ports, four USB 2.0 interfaces, and a DVI-I display output. It also includes 128 kB of NOVRAM for persistent data storage in the absence of a UPS. The CX2020-0121 supports the integration of up to four PCIe-based expansion modules, such as fieldbus and serial interfaces, and offers RAID functionality when multiple CFast cards are used.

Supporting multiple OS platforms—including Windows 10 IoT Enterprise and TwinCAT/BSD—and TwinCAT 2 and 3 runtimes, this Embedded PC is optimized for applications including 3D path interpolation and advanced automation logic.

Technical Specifications

Manufacturer: Beckhoff
Part Number: CX2020-0121 Beckhoff
Product Type: Embedded PC / Industrial Controller
Series: CX2000

Processor & Memory

Processor: Intel® Celeron® 827E, 1.4 GHz, Single-Core
Main Memory: 2 GB DDR3 RAM (expandable to 4 GB ex factory)
Flash Memory: 20 GB or 40 GB CFast card (OS-dependent, extendable)
Persistent Memory: 128 kB NOVRAM
Expansion Modules: Supports up to 4 PCIe modules

Operating System & Software

Operating System: Windows Embedded Compact 7 / Standard 7 / Windows 10 IoT Enterprise 2016 LTSB / TwinCAT/BSD
Control Software: TwinCAT 2 runtime and TwinCAT 3 runtime (XAR)

Interfaces & Connectivity

Ethernet: 2 x RJ45 (10/100/1000 Mbit/s)
USB: 4 x USB 2.0
Display: 1 x DVI-I
Optional Interface: Fieldbus or serial (factory option)
I/O Interface: Via CX2100 power supply module (E-bus or K-bus)
Diagnostic LEDs: Power, Flash Access, TC Status, 2 x Bus Status
Clock: Internal battery-backed RTC (exchangeable)

Power & Environmental

Power Supply: 24 V DC (-15% / +20%)
Max. Power Consumption: 21 W
Cooling: Passive (active cooling available ex factory)
Operating Temperature: -25…+60°C
Storage Temperature: -40…+85°C
Humidity: 95% RH, non-condensing
Protection Class: IP20
EMC Standards: EN 61000-6-2 / EN 61000-6-4
Vibration/Shock Resistance: EN 60068-2-6 / EN 60068-2-27

Mechanical Specifications

Mounting: DIN Rail
Dimensions (W x H x D): 144 mm x 99 mm x 91 mm
Weight: Approx. 1160 g

Approvals & Markings

Certifications: CE, UL
TwinCAT 3 Platform Level: Performance Plus (50)

Key Features

✅ Intel Celeron 1.4 GHz CPU: Reliable performance with low thermal output.

✅ Expandable via PCIe: Connect up to 4 fieldbus or I/O modules.

✅ Embedded NOVRAM: 128 kB persistent memory for power loss protection.

✅ Multi-OS Support: Windows 10 IoT, Embedded, and TwinCAT/BSD.

✅ Fanless Industrial Design: Ideal for harsh and vibration-prone environments.

✅ Service-Proven Platform: Still ideal for legacy automation despite service phase.

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