B&R X20BT9400 X2X Link bus transmitter

Buy online your B&R X20BT9400 X2X Link bus transmitter from our UK e-store Cnc-shopping UK, specialist in CNC machine-tools spare parts.

The B&R AUTOMATION X20BT9400 is an X20 Series communication module designed to establish an X2X Link connection for distributed I/O systems within B&R automation platforms. It serves as the communication backbone between the local X20 rack and remote I/O stations, making it an ideal replacement module for CNC machines, packaging equipment, robotics, assembly systems, and industrial automation applications requiring high-speed, deterministic data exchange.

Operating as the X2X Link bus transmitter, the X20BT9400 initiates communication from the local X20 system to remote X67 I/O stations. By relocating I/O modules closer to sensors and actuators, it reduces field wiring, simplifies machine design, and maintains fast real-time communication between the controller and distributed devices. It is commonly used in CNC machine tools, long conveyor systems, transfer lines, gantry systems, and other applications where distributed I/O improves installation flexibility and maintenance efficiency.

Designed specifically for the B&R X20 platform, the X20BT9400 installs on a standard X20 terminal base and communicates with compatible X20 CPUs and bus controllers supporting the X2X Link protocol. The module is installed only in the rightmost slot of the X20 rack and provides the integrated X2X Link power supply required for connected X67 distributed I/O systems, eliminating the need for a separate X67 power supply module in many applications.

The X20BT9400 supports X2X Link cable lengths of up to 100 meters and supplies power for both the internal I/O system and the connected X67 network. Its modular design allows seamless system expansion while preserving the standard X20 architecture and minimizing modifications to the existing control cabinet. Manufactured in Austria, it is designed for reliable long-term operation in demanding industrial environments exposed to vibration, electrical noise, and continuous production cycles.

Ready to replace your defective B&R AUTOMATION X20BT9400 X2X Link Bus Transmitter, this module quickly restores communication with remote I/O stations following transmitter failures, communication faults, or aging hardware. It is also an excellent solution for machine upgrades requiring additional distributed I/O without redesigning the existing control system.

Each module can be supplied as a fully tested replacement, inspected by experienced engineers on dedicated B&R X20 and X2X Link test benches to verify communication performance, status diagnostics, and overall functionality before shipment. Supplied with a warranty, the module is carefully packaged in ESD-safe, shock-resistant materials for secure international transportation. CNC-Shopping also offers repair services, exchange programs, refurbished units, and sourcing solutions for obsolete B&R AUTOMATION components, helping maintenance teams minimize downtime and extend the service life of legacy industrial automation systems.

Frequently asked questions about X20BT9400:

Where is this module used in an X20 installation
It sits on an X20 rack to create the outbound X2X Link segment to remote I/O islands. It is typically installed in the main control cabinet near the CPU or bus controller.

What does it connect to on the remote side
It is designed to work with compatible X2X receivers and remote X20 or related I/O stations that support B&R’s X2X topology. This pairing creates a deterministic fieldbus segment for distributed modules.

Is it suitable as a drop-in replacement for a failed transmitter
Yes, in most cases it serves as a direct replacement unit within existing B&R X20 systems. Matching hardware revisions and configuration to the existing installation is recommended during maintenance planning.

Can it be used in retrofit projects to add more I/O
Yes, it is commonly applied in retrofits to extend I/O to new machine sections without moving the main controller. This approach keeps wiring localized and simplifies future service.