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Beckhoff KL5151 1-channel RS232 serial interface terminal for K-Bus systems

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Beckhoff KL5151

by Beckhoff

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OverviewThe Beckhoff KL5151 is a high-performance 1-channel RS232 serial interface terminal, designed for seamless integration into your existing K-Bus system. This compact, DIN-rail mounted solution enables communication with a wide array of RS232-compatible equipment. From barcode readers and industrial printing devices to sophisticated detectors and advanced control units, the KL5151 facilitates smooth data exchange, enhancing your automation environment's capabilities. Its thoughtful design and comprehensive features make it an essential element for modern industrial applications.Key Features Single-Channel RS232 Interface: Dedicated channel for dependable point-to-point communication. Rapid Data Speeds: Supports transfer rates up to 115.2 kbaud for efficient data exchange. Compact Footprint: Space-saving 12 mm housing, optimized for DIN-rail installation in control cabinets. Electrical Isolation: Provides 500 V isolation between the interface and bus system, ensuring signal integrity and protection. Status Indicators: Visible LEDs show transmission and reception for easy monitoring and diagnostics. Full TwinCAT Compatibility: Seamless integration with Beckhoff's TwinCAT software for straightforward configuration and programming. Broad Temperature Range: Operates reliably in industrial settings from –25 °C to +60 °C. Technical Specifications Part Number: KL5151 Manufacturer: Beckhoff System Compatibility: K-Bus (Bus Terminal system) Interface Type: RS232 serial Channels: 1 Baud Rate: Up to 115.2 kbaud Insulation: 500 V (I/O to bus system) Housing Width: 12 mm Mounting Method: DIN rail (K-Bus terminal) Operational Temperature: –25 °C to +60 °C ApplicationsThe Beckhoff KL5151 offers a versatile solution suitable for numerous industrial automation scenarios, including: Establishing reliable connections with various RS232-compatible devices. Integrating barcode readers and industrial printers into control systems easily. Facilitating dependable communication with diverse controllers and sensors. Improving machine and process automation with seamlessly integrated serial peripherals. Implementing distributed I/O solutions within current K-Bus infrastructures for increased flexibility. Enabling the integration of older devices into contemporary automation architectures. Why Choose This Model?The Beckhoff KL5151 stands out as a premier choice for your industrial communication needs due to several compelling advantages: Assured Reliability: Ensures stable and consistent RS232 serial communication for critical operations. Space Efficiency: Its compact 12 mm design maximizes cabinet space usage, perfect for high-density installations. Effortless Integration: Guarantees smooth compatibility with the Beckhoff K-Bus system and full integration with TwinCAT software, streamlining development and deployment. Extensive Device Support: Offers broad compatibility with a wide array of serial devices, boosting flexibility and reducing integration challenges. Beckhoff Quality: Backed by Beckhoff's renowned industrial automation expertise, ensuring a product built to the highest standards. Worldwide Availability: Ready for global shipment, ensuring you can acquire this essential component wherever your operations are located. Order NowExperience the superior performance and seamless integration of the Beckhoff KL5151 1-channel RS232 serial interface terminal. This critical component for modern industrial automation is widely available and ships globally, ensuring prompt delivery. Enhance the reliability and efficiency of your K-Bus system with Beckhoff technology today.FAQWhat is the primary function of the Beckhoff KL5151?The Beckhoff KL5151 serves as a 1-channel RS232 serial interface terminal, designed to connect RS232-compatible devices to a Beckhoff K-Bus system for data exchange.What types of devices can be connected using the KL5151?You can connect a diverse range of RS232-compatible devices, such as barcode scanners, industrial printers, sensors, and controllers.What is the maximum baud rate supported by the KL5151?The KL5151 supports baud rates of up to 115.2 kbaud for efficient data transfer.Is the KL5151 electrically isolated?Yes, it provides 500 V electrical isolation between the interface and the bus system for signal integrity and protection.How does the KL5151 integrate with Beckhoff software?It offers seamless compatibility with Beckhoff's TwinCAT automation software for simplified configuration and programming.What is the operating temperature range for this terminal?The KL5151 functions reliably in demanding industrial environments from –25 °C to +60 °C.

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PRODUCT DETAILS

Beckhoff KL5151

Overview

This is a genuine Beckhoff component from the Bus Terminals (KL) family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Beckhoff catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Beckhoff automation ecosystem
  • Engineered to integrate inside Bus Terminals (KL) installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Beckhoff equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Beckhoff catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Beckhoff platform with documented conversion notes for the Bus Terminals (KL) family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Part Number: KL5151
  • Manufacturer: Beckhoff
  • System Compatibility: K-Bus (Bus Terminal system)
  • Interface Type: RS232 serial
  • Channels: 1
  • Baud Rate: Up to 115.2 kbaud
  • Insulation: 500 V (I/O to bus system)
  • Housing Width: 12 mm
  • Mounting Method: DIN rail (K-Bus terminal)
  • Operational Temperature: –25 °C to +60 °C

Applications

The Beckhoff KL5151 offers a versatile solution suitable for numerous industrial automation scenarios, including:

  • Establishing reliable connections with various RS232-compatible devices.
  • Integrating barcode readers and industrial printers into control systems easily.
  • Facilitating dependable communication with diverse controllers and sensors.
  • Improving machine and process automation with seamlessly integrated serial peripherals.
  • Implementing distributed I/O solutions within current K-Bus infrastructures for increased flexibility.
  • Enabling the integration of older devices into contemporary automation architectures.

Why Choose the KL5151?

The Beckhoff KL5151 stands out as a premier choice for your industrial communication needs due to several compelling advantages:

  • Assured Reliability: Ensures stable and consistent RS232 serial communication for critical operations.
  • Space Efficiency: Its compact 12 mm design maximizes cabinet space usage, perfect for high-density installations.
  • Effortless Integration: Guarantees smooth compatibility with the Beckhoff K-Bus system and full integration with TwinCAT software, streamlining development and deployment.
  • Extensive Device Support: Offers broad compatibility with a wide array of serial devices, boosting flexibility and reducing integration challenges.
  • Beckhoff Quality: Backed by Beckhoff's renowned industrial automation expertise, ensuring a product built to the highest standards.
  • Worldwide Availability: Ready for global shipment, ensuring you can acquire this essential component wherever your operations are located.

Availability & Shipping

  • In stock: KL5151 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every KL5151 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Beckhoff

The Beckhoff KL5151 serves as a 1-channel RS232 serial interface terminal, designed to connect RS232-compatible devices to a Beckhoff K-Bus system for data exchange.

Machine down? We ship parts the same day.

New, surplus, and refurbished Beckhoff inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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