Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Engineered for high-reliability industrial control applications, the Beckhoff CX5120-0110 is a fanless, compact embedded personal computer designed for direct DIN rail mounting. This controller integrates a power-efficient Intel Atom E3815 single-core processor running at 1.46 GHz, providing stable performance for entry-to-mid-tier automation tasks without active cooling components.
The unit features 2 GB of non-expandable DDR3 RAM and provides storage options through dual onboard CFast and microSD card slots. Equipped with an integrated 1-second UPS, the CX5120-0110 secures 1 MB of persistent data on the CFast card in the event of a sudden power loss, preventing critical system state corruption. Its hardware interface is highly versatile, featuring dual independent RJ45 Gigabit Ethernet ports, a DVI-D display connector, and four USB 2.0 ports. For direct connection to physical inputs and outputs, the module automatically identifies and communicates with either EtherCAT Terminals (E-bus) or standard Bus Terminals (K-bus) connected to the backplane.
| Manufacturer | Beckhoff Automation |
| Part Number / Model | CX5120-0110 |
| Processor | Intel Atom E3815, 1.46 GHz (1 Core) |
| Main Memory | 2 GB DDR3 RAM (Non-expandable) |
| Flash Memory Slots | 1 x CFast card slot, 1 x microSD card slot (Cards not included) |
| Persistent Memory | Integrated 1-second UPS (1 MB on CFast card) |
| Operating System | Microsoft Windows Embedded Compact 7 |
| Control Software | No TwinCAT pre-installed (TwinCAT 3 platform level Performance 40 supported) |
| I/O Connections | E-bus (EtherCAT) or K-bus (Bus Terminals), automatic detection |
| Network Interfaces | 2 x RJ45 10/100/1000 Mbit/s (independent) |
| Peripheral Interfaces | 1 x DVI-D, 4 x USB 2.0, 1 x Optional interface slot |
| Supply Voltage | 24 V DC (-15% / +20%) |
| Max. Power Consumption | 11 W standard (18 W when charging internal UPS) |
| E-bus/K-bus Current Supply | 2 A max. |
| Dimensions (W x H x D) | 122 mm x 100 mm x 92 mm |
| Weight | Approx. 975 g |
| Operating Temperature | -25 degC to +60 degC |
| Storage Temperature | -40 degC to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Protection Rating | IP20 |
| 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 |
| Interface Type | Quantity | Functionality |
|---|---|---|
| RJ45 | 2 | 10/100/1000 Mbit/s Ethernet connection for host, local, or fieldbus networking |
| DVI-D | 1 | Digital display connection for local HMIs or monitors |
| USB 2.0 | 4 | Connecting external input peripherals, configuration drives, or peripheral sensors |
| E-bus/K-bus Terminal | 1 | Direct right-side connection to local modular IO slices |
Global Express Shipping
Returns & Warranty

Engineered for high-reliability industrial control applications, the Beckhoff CX5120-0110 is a fanless, compact embedded personal computer designed for direct DIN rail mounting. This controller integrates a power-efficient Intel Atom E3815 single-core processor running at 1.46 GHz, providing stable performance for entry-to-mid-tier automation tasks without active cooling components.
The unit features 2 GB of non-expandable DDR3 RAM and provides storage options through dual onboard CFast and microSD card slots. Equipped with an integrated 1-second UPS, the CX5120-0110 secures 1 MB of persistent data on the CFast card in the event of a sudden power loss, preventing critical system state corruption. Its hardware interface is highly versatile, featuring dual independent RJ45 Gigabit Ethernet ports, a DVI-D display connector, and four USB 2.0 ports. For direct connection to physical inputs and outputs, the module automatically identifies and communicates with either EtherCAT Terminals (E-bus) or standard Bus Terminals (K-bus) connected to the backplane.
| Manufacturer | Beckhoff Automation |
| Part Number / Model | CX5120-0110 |
| Processor | Intel Atom E3815, 1.46 GHz (1 Core) |
| Main Memory | 2 GB DDR3 RAM (Non-expandable) |
| Flash Memory Slots | 1 x CFast card slot, 1 x microSD card slot (Cards not included) |
| Persistent Memory | Integrated 1-second UPS (1 MB on CFast card) |
| Operating System | Microsoft Windows Embedded Compact 7 |
| Control Software | No TwinCAT pre-installed (TwinCAT 3 platform level Performance 40 supported) |
| I/O Connections | E-bus (EtherCAT) or K-bus (Bus Terminals), automatic detection |
| Network Interfaces | 2 x RJ45 10/100/1000 Mbit/s (independent) |
| Peripheral Interfaces | 1 x DVI-D, 4 x USB 2.0, 1 x Optional interface slot |
| Supply Voltage | 24 V DC (-15% / +20%) |
| Max. Power Consumption | 11 W standard (18 W when charging internal UPS) |
| E-bus/K-bus Current Supply | 2 A max. |
| Dimensions (W x H x D) | 122 mm x 100 mm x 92 mm |
| Weight | Approx. 975 g |
| Operating Temperature | -25 degC to +60 degC |
| Storage Temperature | -40 degC to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Protection Rating | IP20 |
| 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 |
| Interface Type | Quantity | Functionality |
|---|---|---|
| RJ45 | 2 | 10/100/1000 Mbit/s Ethernet connection for host, local, or fieldbus networking |
| DVI-D | 1 | Digital display connection for local HMIs or monitors |
| USB 2.0 | 4 | Connecting external input peripherals, configuration drives, or peripheral sensors |
| E-bus/K-bus Terminal | 1 | Direct right-side connection to local modular IO slices |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|