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.
Designed for space-saving control cabinet integration, the Beckhoff CP6742-0000-0050 serves as an industrial-grade built-in Panel PC combining visual display and control processing in a unified chassis. It features a bright 15-inch TFT display with a native resolution of 1024 x 768 pixels, paired with a responsive single-finger touch screen. Built on a 3.5-inch motherboard, this unit is powered by energy-efficient Intel Atom E38xx series processors, making it highly compatible with TwinCAT automation software for real-time control applications.
The mechanical design features a robust aluminum front frame paired with a sheet-steel rear cover. Installation is streamlined via integrated pull-out clamping levers that allow secure, tool-free mounting inside control panel cutouts. This construction ensures high environmental resistance, achieving an IP65 protection rating on the front panel and IP20 on the rear enclosure.
| Manufacturer | BECKHOFF |
| Part Number / Model | CP6742-0000-0050 |
| Device Type | Economy built-in Panel PC |
| Display Size | 15-inch |
| Resolution | 1024 x 768 pixels |
| Processor | Intel Atom E3815 1.46 GHz (up to E3845 1.91 GHz options) |
| Memory | 2 GB DDR3L RAM (expandable up to 8 GB) |
| Storage Slots | 1 x CFast slot |
| Ethernet Ports | 2 x 100/1000BASE-T on-board |
| Interfaces | 4 x USB 2.0, 1 x DVI |
| Power Supply | 24 V DC |
| Front Protection Rating | IP65 |
| Rear Protection Rating | IP20 |
| Operating Temperature | 0 to 55 degC |
| Housing Material | Aluminum front with sheet-steel rear cover |
| Shipping Weight | 8 kg |
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Returns & Warranty

Designed for space-saving control cabinet integration, the Beckhoff CP6742-0000-0050 serves as an industrial-grade built-in Panel PC combining visual display and control processing in a unified chassis. It features a bright 15-inch TFT display with a native resolution of 1024 x 768 pixels, paired with a responsive single-finger touch screen. Built on a 3.5-inch motherboard, this unit is powered by energy-efficient Intel Atom E38xx series processors, making it highly compatible with TwinCAT automation software for real-time control applications.
The mechanical design features a robust aluminum front frame paired with a sheet-steel rear cover. Installation is streamlined via integrated pull-out clamping levers that allow secure, tool-free mounting inside control panel cutouts. This construction ensures high environmental resistance, achieving an IP65 protection rating on the front panel and IP20 on the rear enclosure.
| Manufacturer | BECKHOFF |
| Part Number / Model | CP6742-0000-0050 |
| Device Type | Economy built-in Panel PC |
| Display Size | 15-inch |
| Resolution | 1024 x 768 pixels |
| Processor | Intel Atom E3815 1.46 GHz (up to E3845 1.91 GHz options) |
| Memory | 2 GB DDR3L RAM (expandable up to 8 GB) |
| Storage Slots | 1 x CFast slot |
| Ethernet Ports | 2 x 100/1000BASE-T on-board |
| Interfaces | 4 x USB 2.0, 1 x DVI |
| Power Supply | 24 V DC |
| Front Protection Rating | IP65 |
| Rear Protection Rating | IP20 |
| Operating Temperature | 0 to 55 degC |
| Housing Material | Aluminum front with sheet-steel rear cover |
| Shipping Weight | 8 kg |
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
|