Product Description:

The PP2MB1/2 is a printed-circuit motherboard produced by B & R Automation for the PP Motherboards series. Installed in a control cabinet, this board forms the central platform on which CPU, fieldbus, and I/O plug-in cards are mounted, allowing a modular industrial PC to coordinate motion, safety, and visualization tasks. By combining data routing and power distribution on a single backplane, it supports reliable, real-time communication between machinery and supervisory systems without adding extra wiring layers. This layout keeps the internal architecture organized and allows multiple expansion cards to share common power and signal paths through one base assembly.

The board type is a Motherboard, so all daughter cards lock into one rigid carrier instead of separate frames. Its length of 19.0 cm determines how much slot space is available inside a standard 19-inch rack. A built-in Ethernet port provides high-speed networking for PLC links or remote diagnostics, while the dedicated RS-232 / COM channel maintains compatibility with legacy drives and text terminals. Data logs and removable media can be handled through 2 USB ports without specialized adapters. The interface mix supports both network-based control traffic and direct serial communication within the same installation.

Mechanical clearance is set by a height of 3.0 cm, a width of 15.0 cm, and a weight of just 2.0 kg, so the assembly fits shallow enclosures and is light enough for DIN rail sub-frames. A front-panel LED provides at-a-glance status during startup or watchdog events, making state changes visible at the cabinet front. Two mode and node switches on the board allow local address selection and boot-option changes without software tools. These controls help simplify setup when the system must be adjusted directly at the hardware level.