2BP300.4 B & R Automation
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The 2BP300.4 controller is manufactured by B & R Automation and is part of the System 2010 Controllers series. It features mounting rail installation, supports system and I/O bus connectivity, and provides 2 CPU slots for 1 CPU. The controller measures 285 mm in height, 80 mm in width, and 20 mm in depth, and operates in temperatures from 0 to 60 °C.
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Product Description:
The 2BP300.4 is a controller back-plane produced by B&R Automation as part of the System 2010 Controllers series. It acts as the physical and electrical carrier for a CPU module and associated I/O cards, allowing the CPU to interface with distributed sensors and actuators in an industrial automation cell. By providing a standardized bus infrastructure, the unit supports orderly installation and deterministic data exchange between processing, communication, and field-level hardware.
The carrier has a height of 285 mm, a width of 80 mm, and a depth of 20 mm. These dimensions determine enclosure space requirements and the clearances needed for airflow around the assembly. An ambient operating range of 0 to 60 °C allows the board to run without forced cooling in many cabinet environments. Two dedicated back-plane slots are provided, but they are arranged for only one central processor, described as 2 for 1 CPU. The second position can therefore support related system functions while preserving a stable connection for the primary control processor.
Installation is simplified because the housing locks onto a Mounting Rail, allowing the carrier to slide onto standard DIN rails without additional brackets. A galvanically linked System Bus carries power and synchronized timing signals along the card edge so that inserted modules share common address and watchdog lines. For high-speed field connections, a separate I/O Bus runs in parallel and keeps process data traffic distinct from service-related communication. At the end of a segment, integrated Bus Termination components match line impedance and help prevent signal reflections. This arrangement supports stable communication between the installed modules during normal controller operation.
