3DM45560-2 B&R

3DM45560-2 B&R Coupler for external

Product  Description：

B&R (Bernecker + Rainer) bus couplers serve as the essential communication link between a higher-level fieldbus or industrial Ethernet network and local X20 or X67 I/O modules. When used for "external" expansion, these couplers allow decentralized I/O stations to be placed directly at the point of sensing or actuation on a machine, far from the main control cabinet. They translate the protocol of the external network—such as POWERLINK, EtherCAT, or PROFINET—into the internal backplane bus signals required by the connected modules.

Product Parameters

The technical characteristics of B&R bus couplers are designed to support high-speed data throughput and modular flexibility:

• Supported Networks: Available for various industrial standards including Ethernet POWERLINK, EtherCAT, PROFINET, Modbus TCP, and CANopen.

• I/O Module Capacity: Typically supports the connection of up to 253 X20 modules per coupler, depending on the power consumption and memory limits.

• Transmission Rate: Supports Gigabit Ethernet or 100 Mbps Fast Ethernet, ensuring minimal latency for real-time control applications.

• Power Supply: Integrated 24V DC supply for the local bus and the I/O modules, often featuring internal isolation to protect against electrical surges.

• Environmental Rating: Standard X20 couplers are rated for IP20, while X67 series external couplers feature IP67 protection for mounting directly on machinery without an enclosure.

• Addressing: Network addresses are configured via hardware rotary switches or software settings in the B&R Automation Studio environment.

Product Advantages

B&R bus couplers provide a robust foundation for modular machine designs:

• Modular Expandability: The slice-based design allows users to add or remove I/O modules without changing the bus coupler hardware, facilitating highly customized machine configurations.

• High Synchronicity: When used with POWERLINK, these couplers support sub-millisecond cycle times and microsecond-level synchronization across the entire network.

• Hot-Swapping Capability: The X20 system allows for the replacement of I/O modules while the bus coupler is under power, significantly reducing downtime during maintenance.

• Integrated Diagnostics: Advanced monitoring features track the status of the local bus, communication quality, and the health of the connected I/O modules in real-time.

• Compact Form Factor: The narrow design saves significant space on the DIN rail, allowing for smaller control boxes or higher component density.

Product Applications

These couplers are utilized in distributed control architectures across various industries:

• Decentralized Machine Modules: Connecting sensors and actuators on remote sections of a long conveyor system back to a central PLC.

• Modular Packaging Lines: Allowing different machine sections (e.g., filler, capper, labeler) to be connected via a single network cable through their respective couplers.

• Robotics and Tooling: Mounting IP67-rated couplers directly on robotic arms or end-of-arm tooling to reduce wiring weight and complexity.

• Energy Management: Distributing I/O stations across a large facility to monitor power meters and environmental sensors via Modbus TCP or PROFINET.

• Mobile Automation: Using CANopen-based couplers in off-highway vehicles and construction machinery for robust, vibration-resistant control.

Important Precautions

To ensure long-term reliability and network stability, the following guidelines are critical:

• Bus Termination: Ensure that the local X20 backplane is properly terminated with an end cover. Without the termination plate, the internal bus communication will fail.

• Power Budgeting: Calculate the total current consumption of all connected I/O modules. If the modules exceed the coupler’s internal power supply capacity, an additional power supply module must be inserted.

• Cable Shielding: Use high-quality, shielded industrial Ethernet cables (S/FTP) and ensure the shield is properly grounded at the coupler to prevent electromagnetic interference.

• Firmware Versioning: When replacing a coupler, verify that the firmware version is compatible with the project hardware configuration in Automation Studio to avoid communication errors.

• Static Protection: Always discharge any static electricity from your body before touching the coupler or its terminals, as high-speed communication chips are sensitive to electrostatic discharge.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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