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.
The BECKHOFF KL6581 is a K-bus Bus Terminal that serves as an EnOcean master interface. It is designed to enable wireless communication with EnOcean-compatible sensors and actuators in building automation and industrial control environments. The terminal itself does not contain high-frequency transmitter or receiver hardware; instead, it acts as a central controller and interface module that connects to external transceivers.
To achieve wide radio coverage across a building, the BECKHOFF KL6581 supports the connection of up to eight external BECKHOFF KL6583 EnOcean transmitter and receiver modules. This distributed architecture allows physical transceivers to be positioned at optimal locations away from the control cabinet, overcoming distance limitations and avoiding building structure interference.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | KL6581 |
| Product Type | Bus Terminal (EnOcean Master) |
| Operating Temperature | 0 degC to +55 degC |
| Storage Temperature | -25 degC to +85 degC |
| Relative Humidity | 95%, no condensation |
| Protection Rating | IP20 |
| Weight | approx. 85 g |
| Approvals | CE, UL |
| Parameter | Specification |
|---|---|
| Nominal Voltage | 24 V DC (-15% / +20%) |
| Current Consumption (K-bus) | typ. 60 mA |
| Current Consumption (Power Contacts) | typ. 20 mA + load |
| Data Transfer Rate | 125 kbaud |
| Max. Cable Length | 500 m (to KL6583 modules) |
| Connection Method | 2 x 2-wires directly to KL6583 modules |
| Supported Sub-Modules | Up to 8 x KL6583 EnOcean transmitter/receiver modules |
Global Express Shipping
Returns & Warranty

The BECKHOFF KL6581 is a K-bus Bus Terminal that serves as an EnOcean master interface. It is designed to enable wireless communication with EnOcean-compatible sensors and actuators in building automation and industrial control environments. The terminal itself does not contain high-frequency transmitter or receiver hardware; instead, it acts as a central controller and interface module that connects to external transceivers.
To achieve wide radio coverage across a building, the BECKHOFF KL6581 supports the connection of up to eight external BECKHOFF KL6583 EnOcean transmitter and receiver modules. This distributed architecture allows physical transceivers to be positioned at optimal locations away from the control cabinet, overcoming distance limitations and avoiding building structure interference.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | KL6581 |
| Product Type | Bus Terminal (EnOcean Master) |
| Operating Temperature | 0 degC to +55 degC |
| Storage Temperature | -25 degC to +85 degC |
| Relative Humidity | 95%, no condensation |
| Protection Rating | IP20 |
| Weight | approx. 85 g |
| Approvals | CE, UL |
| Parameter | Specification |
|---|---|
| Nominal Voltage | 24 V DC (-15% / +20%) |
| Current Consumption (K-bus) | typ. 60 mA |
| Current Consumption (Power Contacts) | typ. 20 mA + load |
| Data Transfer Rate | 125 kbaud |
| Max. Cable Length | 500 m (to KL6583 modules) |
| Connection Method | 2 x 2-wires directly to KL6583 modules |
| Supported Sub-Modules | Up to 8 x KL6583 EnOcean transmitter/receiver modules |
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
|