Number of Bus Terminals: 64
Max. number of bytes fieldbus: 512 byte input and 512 byte output
Digital peripheral signals: 512 inputs/outputs
Analog peripheral signals: 128 inputs/outputs
Configuration: via KS2000 or the controller
Data transfer rates: 2.5 Mbaud
Bus interface: 2 x standard fiber-optic connector Z1000 (plastic fiber), Z1010 (HCS fiber)

Seamless Lightbus Integration: Connects Beckhoff’s modular Bus Terminals directly to Lightbus networks
High Data Throughput: Supports up to 512 bytes input and 512 bytes output for large-scale data handling.
Robust Connectivity: Features dual fiber-optic interfaces for reliable communication via plastic or HCS fibers.
Flexible I/O Expansion: Operates with up to 64 Bus Terminals (digital, analog, or specialty) for modular system design.

The Beckhoff BK2000 Lightbus Bus Coupler is a communication gateway designed to integrate Beckhoff’s modular Bus Terminal I/O system into Lightbus fieldbus networks. Serving as the link between distributed field devices and higher-level controllers, the BK2000 delivers fast, reliable communication in demanding industrial environments.

Capable of handling up to 64 Bus Terminals, the BK2000 supports a wide range of Beckhoff’s digital, analog, and specialty I/O modules. This scalability allows engineers to tailor the I/O mix to meet specific application needs, from simple digital signal acquisition to complex analog measurement and control. Combined with the flexibility of Beckhoff’s modular design, it enables both small machine applications and extensive distributed automation systems.

In terms of performance, the BK2000 is built for high data throughput. It supports up to 512 bytes of input and 512 bytes of output data via the Lightbus fieldbus, ensuring it can handle extensive process images. This makes it suitable for applications requiring large numbers of signals or where detailed monitoring and control are essential. For example, in packaging lines, automotive assembly, or process control environments, the BK2000 can efficiently manage high volumes of distributed I/O.

Communication takes place over the Lightbus protocol at a data transfer rate of 2.5 Mbaud, ensuring fast and deterministic data exchange. The BK2000 features two standard fiber-optic interfaces, supporting both Z1000 plastic fibers and Z1010 HCS fibers. This dual compatibility allows engineers to select the fiber type best suited for their installation, balancing factors such as transmission distance, durability, and cost. Fiber-optic communication also ensures immunity to electromagnetic interference, making the BK2000 ideal for noisy industrial environments.

Configuration of the BK2000 is straightforward and can be carried out using Beckhoff’s KS2000 configuration software or directly via the controller. This simplifies commissioning and enables efficient parameterisation of the connected I/O modules. Status LEDs provide clear diagnostic feedback, helping to reduce setup time and ease troubleshooting during operation.

The BK2000 is especially valuable in industries where Lightbus remains an established standard, such as automotive manufacturing, robotics, or process control. By providing a compact, modular, and reliable interface between Lightbus and Beckhoff I/O, it ensures that existing Lightbus infrastructures can benefit from the flexibility and scalability of the Bus Terminal system.

In summary, the Beckhoff BK2000 Lightbus Bus Coupler is a robust and efficient solution for integrating modular I/O into Lightbus networks. With support for up to 64 terminals, 512 bytes of I/O data, fiber-optic connectivity, and 2.5 Mbaud communication, it delivers reliable, high-performance integration for both compact and large-scale automation systems.