2EX302.5 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 2EX302.5 is a controller in the System 2010 Controllers series. It supports up to 99 I/O modules and operates with bus levels 1 and 2. The unit features two interfaces and has maximum power consumption of 3 Watts, with dimensions of 285 by 40 by 185 mm.
Internal Product Review
The 2EX302.5 is a B&R Automation System 2010 controller built for bus levels 1 and 2 with expansion cable transfer media. Support for up to 10 bus segments and 99 I/O modules gives this unit impressive flexibility in larger distributed architectures. Low 3 W max power consumption makes this controller an efficient and well-balanced choice for modular automation systems.
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Product Description:
The 2EX302.5 is a bus expansion module that belongs to the System 2010 Controllers series from B & R Automation. It mounts beside a central processor to extend the internal communication backbone, allowing additional I/O racks to be addressed without altering the primary control topology. In industrial automation networks, the device provides a deterministic bridge between base and extension segments, ensuring synchronized data transfer for distributed sensors, drives, and safety relays. This arrangement expands the available control network while preserving centralized communication with the processor.
This module supports bus levels 1 and 2, so it can relay telegrams between the processor tier and subordinate field nodes without protocol conversion. The housing measures 285 × 40 × 185 mm, providing a clear space profile for cabinet layout and airflow planning. Two independent backplane sockets provide 2 physical interfaces that can be dedicated to separate segment chains or used as redundant paths. A single module can manage up to 10 bus segments, and each segment may host as many as 99 discrete I/O modules before another expansion path is required. This capacity supports broad I/O distribution across a logical automation cell without requiring additional central controllers.
The circuitry has a maximum power draw of 3 W from the system power rail, which reduces heat generation and simplifies power-supply sizing. Communication between the expansion unit and the upstream controller is carried over an expansion cable, preserving signal integrity across the permitted cabinet span. The module integrates with the programming environment used to map connected racks and their associated I/O points. Its deterministic communication path helps maintain coordinated updates as devices exchange process values and control commands. Separate segment paths also provide flexibility when organizing distributed sensors, actuators, drive interfaces, and safety-related equipment within the cabinet network.
