Description
The Beckhoff CX1100-0001 is a dedicated 24 V DC power supply module engineered explicitly for the CX1010 and CX1020 Embedded PC hardware platforms. It serves as the primary power regulation interface, providing the internal system voltages necessary to run the adjacent CPU module via a proprietary PC104 system bus connection. This specific baseline model includes an integrated 8 KB non-volatile memory (NOVRAM) block for retentive data storage and an illuminated liquid-crystal diagnostic display. Unlike its counterparts (such as the CX1100-0002 or CX1100-0004), the CX1100-0001 does not include an integrated fieldbus or I/O terminal extension interface, meaning it is designed solely to power the CPU and any directly attached fieldbus master/slave communication modules.
Technical Specifications
| Parameter | Value / Specification |
| Brand / Manufacturer | Beckhoff Automation |
| Model / Part Number | CX1100-0001 |
| Product Type | Basic System Power Supply Module |
| Input Nominal Voltage | 24 V DC (−15% / +20%) |
| Input Connection | 1 x open-style 5-pin terminal block plug |
| Non-Volatile Memory | 8 KB NOVRAM (for retentive TwinCAT variables) |
| Diagnostic Display | FSTN LCD, 2 lines x 16 characters, illuminated background |
| Navigation Interface | 4+1 directional navigation switch matrix |
| I/O Interface Capability | None (No direct KL/EL bus terminal connection rails) |
| Status Indicators | 1 x Power LED status indicator |
| Protection Class | IP20 |
| Operating Temperature | 0 to +55 °C (+32 to +131 °F) |
| Dimensions (W x H x D) | 44 mm x 100 mm x 92 mm |
Commercial and Availability Logistics
- Product Condition: Available as New Original (New Surplus) or Refurbished (fully tested under maximum load step conditions).
- Warranty: 12-month comprehensive technical warranty covering component degradation and display function.
- Availability: In stock. Standard handling and dispatch time is 1 to 3 business days for worldwide delivery.
- Pricing Notice: Listed pricing is indicative and subject to fluctuating availability within legacy supply channels. Contact our procurement desk for a firm, written quote.
Engineering Considerations and Field Deployment Notes
Architecture Limits and I/O Restrictions
The CX1100-0001 is a standard power regulation slice containing no internal K-bus or E-bus terminal drivers. If your system architecture requires a direct local stack of Beckhoff Bus Terminals (KL series) or EtherCAT Terminals (EL series), this module cannot drive them. In such architectures, specify a CX1100-0002 (K-bus) or CX1100-0004 (E-bus) instead. The CX1100-0001 is reserved for standalone processing nodes, HMI controllers, or systems that communicate exclusively via separate fieldbus network modules (e.g., CX1500-M310 Profibus master slices).
NOVRAM Data Persistence Execution
The onboard 8 KB NOVRAM provides reliable retentive data storage for tracking critical system metrics like part counts, machine status, or recipe steps during power drops. To utilize this space, variables must be explicitly allocated inside the TwinCAT PLC configuration framework as VAR_RETAIN. Unlike typical SRAM modules, this NOVRAM setup relies on internal capacitive charging to write data instantly upon power loss, eliminating the need for periodic mechanical battery changes on the supply unit.
Mechanical Mechanical Interlocking
When joining the power supply to the CPU module, the side-mounted multi-pin PC104 connector must slide cleanly into place before locking the assembly onto the DIN rail. Forcing misaligned units together will bend the logic pins, permanently disrupting communication between the power monitoring firmware and the TwinCAT operating engine.
Frequently Asked Questions
Why does my CPU module fail to boot when connected to the CX1100-0001?
Verify that the 24 V DC source input provides at least 2 A of continuous inrush current. If the input voltage sags below 20.4 V DC during initialization, the internal watchdog circuit will halt the CPU module’s boot sequence to protect the CompactFlash sectors from corruption.
Can the LCD panel be programmed to show custom plant variables?
Yes. Using specific function blocks within the TwinCAT PLC library (such as FB_CX1100_ModifyLCD), you can overwrite the standard system status logs and display custom string messages, fault codes, or process alarms directly on the 2-line screen.
What is the purpose of the 5-pin input connector’s additional pins?
The 5-pin terminal provides dedicated power termination for the module electronics along with specific grounding points. Ensure the functional earth ground terminal is tied directly to a low-impedance copper busbar to minimize high-frequency electromagnetic noise entry into the internal CPU logic plane.
Technical Notice: Always cross-reference your total power budget calculations, system ground architecture, and TwinCAT software configurations with the official Beckhoff CX hardware implementation manuals before commissioning replacement power modules.
