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 direct mounting arm installation in demanding environments, the Beckhoff CP3718-0020 is an industrial Multi-touch Panel PC that integrates a high-resolution 18.5-inch widescreen display with an exceptionally robust computing platform. This all-in-one HMI solution features a rugged aluminum housing with complete IP65 protection, allowing operators to run complex control, monitoring, and visualization applications directly at the machine face without requiring an enclosure.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model Reference | CP3718-0020 |
| Display Size & Resolution | 18.5-inch (1366 x 768 pixels) |
| Touch Screen Type | Multi-finger capacitive touch screen |
| Processor Platform | Intel Atom x5-E39xx (E-bus / PCIe compatible options) |
| Motherboard | 3.5-inch industrial motherboard |
| System Memory | 4 GB DDR4 RAM (upgradable up to 8 GB ex-factory) |
| Storage Interface | 2 x CFast slots (supports up to 320 GB CFast) |
| Ethernet Ports | 2 x 100/1000BASE-T (one led out via IP65 push-pull) |
| Power Input | 24 V DC (UPS options available) |
| Cooling Method | Passive cooling with internal air circulation fan |
| Protection Rating | IP65 dust- and water-jet protection |
| Operating Temperature | 0 to 45 degC (32 to 113 degF) |
| Air Circulation Space | Minimum 20 cm required around the housing |
| Shipping Weight (Calculated) | 8.0 kg (17.6 lbs) |
| Port / Terminal | Specification / Assignment |
|---|---|
| Ethernet 1 | RJ45 100/1000BASE-T IP65 push-pull interface |
| Power Input | 24 V DC connection terminal, IP65 integrated |
| Storage Slots | 2 x CFast slots under IP65 protective cover |
| Auxiliary Ports | Up to 4 IP65 connectors (2 ports unassigned by default) |
When transitioning from legacy CP32xx or CP39xx series, note that the CP3718-0020 utilizes an integrated mounting arm adapter layout that directly aligns with Rittal and Rolec systems. Software compatibility requires proper runtime licensing in TwinCAT 3; depending on the chosen CPU variant (E3930 vs. E3940), the controller level maps to performance classes TC3:40 or TC3:50. Ensure projects are targeted correctly in TwinCAT XAE before deploying runtime tasks.
While the CP3718-0020 features internal fans to achieve uniform heat distribution across its aluminum housing, it relies entirely on passive radiation for cooling. You must maintain at least 20 cm (7.9 inches) of open clearance around the entire exterior of the unit. Placing the device in tight corners, alcoves, or directly against structural bulkheads will impede convective airflow, causing thermal throttling of the Intel Atom processor under peak graphic or logic execution cycles.
To retain the IP65 rating, only utilize industrial-grade push-pull RJ45 patch cables designed for IP65 environments. Ensure that the sealing rings on unused interface ports are fully engaged and torqued down. Ground the mounting arm assembly directly to the machine frame using high-frequency copper ground braids. Poor high-frequency grounding can introduce electrical noise into the capacitive multi-touch controller, resulting in erratic coordinate tracking or phantom touch signals.
CRITICAL WARNING
Before starting any installation, modification, or wiring adjustments, ensure all power sources to the machine arm and internal PC modules are completely de-energized. Confirm that internal UPS capacitors (if fitted) are fully discharged to prevent high-energy transients or system damage during component handling.
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Returns & Warranty

Designed for direct mounting arm installation in demanding environments, the Beckhoff CP3718-0020 is an industrial Multi-touch Panel PC that integrates a high-resolution 18.5-inch widescreen display with an exceptionally robust computing platform. This all-in-one HMI solution features a rugged aluminum housing with complete IP65 protection, allowing operators to run complex control, monitoring, and visualization applications directly at the machine face without requiring an enclosure.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model Reference | CP3718-0020 |
| Display Size & Resolution | 18.5-inch (1366 x 768 pixels) |
| Touch Screen Type | Multi-finger capacitive touch screen |
| Processor Platform | Intel Atom x5-E39xx (E-bus / PCIe compatible options) |
| Motherboard | 3.5-inch industrial motherboard |
| System Memory | 4 GB DDR4 RAM (upgradable up to 8 GB ex-factory) |
| Storage Interface | 2 x CFast slots (supports up to 320 GB CFast) |
| Ethernet Ports | 2 x 100/1000BASE-T (one led out via IP65 push-pull) |
| Power Input | 24 V DC (UPS options available) |
| Cooling Method | Passive cooling with internal air circulation fan |
| Protection Rating | IP65 dust- and water-jet protection |
| Operating Temperature | 0 to 45 degC (32 to 113 degF) |
| Air Circulation Space | Minimum 20 cm required around the housing |
| Shipping Weight (Calculated) | 8.0 kg (17.6 lbs) |
| Port / Terminal | Specification / Assignment |
|---|---|
| Ethernet 1 | RJ45 100/1000BASE-T IP65 push-pull interface |
| Power Input | 24 V DC connection terminal, IP65 integrated |
| Storage Slots | 2 x CFast slots under IP65 protective cover |
| Auxiliary Ports | Up to 4 IP65 connectors (2 ports unassigned by default) |
When transitioning from legacy CP32xx or CP39xx series, note that the CP3718-0020 utilizes an integrated mounting arm adapter layout that directly aligns with Rittal and Rolec systems. Software compatibility requires proper runtime licensing in TwinCAT 3; depending on the chosen CPU variant (E3930 vs. E3940), the controller level maps to performance classes TC3:40 or TC3:50. Ensure projects are targeted correctly in TwinCAT XAE before deploying runtime tasks.
While the CP3718-0020 features internal fans to achieve uniform heat distribution across its aluminum housing, it relies entirely on passive radiation for cooling. You must maintain at least 20 cm (7.9 inches) of open clearance around the entire exterior of the unit. Placing the device in tight corners, alcoves, or directly against structural bulkheads will impede convective airflow, causing thermal throttling of the Intel Atom processor under peak graphic or logic execution cycles.
To retain the IP65 rating, only utilize industrial-grade push-pull RJ45 patch cables designed for IP65 environments. Ensure that the sealing rings on unused interface ports are fully engaged and torqued down. Ground the mounting arm assembly directly to the machine frame using high-frequency copper ground braids. Poor high-frequency grounding can introduce electrical noise into the capacitive multi-touch controller, resulting in erratic coordinate tracking or phantom touch signals.
CRITICAL WARNING
Before starting any installation, modification, or wiring adjustments, ensure all power sources to the machine arm and internal PC modules are completely de-energized. Confirm that internal UPS capacitors (if fitted) are fully discharged to prevent high-energy transients or system damage during component handling.
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
|