Beckhoff CX9020-0111/U900 Embedded PC
An Arm Cortex-A8 CX9020 CPU module with Windows Embedded Compact 7, TwinCAT 2 PLC runtime and the factory U900 UPS option.
Product Overview
CX9020-0111/U900 combines the Beckhoff CX9020-0111 software configuration with the CX9020-U900 factory option. The -0111 code identifies Windows Embedded Compact 7 and TwinCAT 2 PLC runtime, while U900 adds a capacitive 1-second UPS for persistent-data saving.
The CX9020 platform provides an Arm Cortex-A8 processor, two switched Ethernet ports, four USB 2.0 ports, DVI-D and automatic E-bus/K-bus detection for modular I/O.
Performance
- Runs TwinCAT 2 PLC control tasks on the CX9020 embedded platform.
- Connects Beckhoff E-bus or K-bus terminals with automatic bus detection.
- Provides Ethernet, USB and DVI-D interfaces for machine control and service access.
- Uses the U900 1-second UPS to save persistent application data to the microSD card during power loss.
Technical Details
| Manufacturer | Beckhoff Automation |
|---|---|
| Model | CX9020-0111/U900 |
| Processor | Arm Cortex-A8, 1 GHz single core |
| Operating System | Windows Embedded Compact 7 |
| Runtime | TwinCAT 2 PLC runtime |
| UPS Option | Internal capacitive 1-second UPS |
| Persistent Memory | 128 kB NOVRAM plus U900 microSD save function |
| Ethernet | Two switched interfaces |
| USB | Four USB 2.0 ports |
| Display | DVI-D |
| I/O Connection | E-bus or K-bus, automatic detection |
| Terminal-Bus Supply | 2 A |
System Integration
- Confirm the full CX9020-0111/U900 label because the U900 option must be installed at the factory and is not a field retrofit.
- Back up the PLC project, boot project, persistent data, licenses and microSD image before replacement.
- Configure the Beckhoff UPS function block and fast persistent mode according to the application write requirements.
- Verify terminal-bus current, Ethernet addressing, DVI display and all fieldbus terminals after restoration.
Applications
- Compact PLC and motion coordination
- Machine automation with modular I/O
- Systems requiring persistent-data save on power loss
FAQ
What does /U900 add to CX9020-0111/U900?
It adds the factory-installed capacitive 1-second UPS used to save persistent data to the microSD card on power loss.
Can the U900 option be added later to CX9020-0111/U900?
No. Beckhoff specifies the one-second UPS as an ex-factory option, so the complete hardware identity must be ordered.
Which software is included with CX9020-0111/U900?
The -0111 configuration uses Windows Embedded Compact 7 and TwinCAT 2 PLC runtime.
Does the CX9020-0111/U900 UPS keep the machine running?
No. Its short capacity is intended for rapid persistent-data saving and controlled shutdown behavior, not process ride-through.
What should be backed up before replacing CX9020-0111/U900?
Keep the microSD image, TwinCAT project, boot project, licenses, persistent-data definition, network settings and terminal configuration.
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