Product Description:

The CX2900-0028 is a dedicated storage accessory manufactured by Beckhoff for its CX Embedded PC Systems series. Intended for field-mounted controllers, the module occupies the CFast bay next to the CPU section and supplies solid-state capacity for TwinCAT projects, trend archives, and system images. By eliminating moving parts, the card withstands continuous vibration and rapid temperature swings in packaging machines, presses, and conveyor stations. Its role in an automation cabinet is to let the embedded PC boot quickly, log deterministically, and retain user data during every power cycle.

It interfaces mechanically and electrically with the CX20x0 CPU module through the board's dedicated SATA channel and delivers 4 GB of usable capacity. The flash array uses SLC architecture, giving each cell a single charge state that improves endurance and reduces write amplification when recipes are updated frequently. All memory is packaged on a CFast card, so transfer bursts align with ATA-8 timing used by the operating system. Sustained read rates support controller boot behavior, while peak writes allow fast recipe downloads. Removal is handled by a push/push eject mechanism: the first press seats the carrier, and the second press releases it for extraction, which helps reduce connector wear.

Supplied as a flash memory extension, the module keeps files safe because its cells are nonvolatile and hold charge without auxiliary power. Component layout and conformal materials are approved for upper ambient limits of +85 °C, allowing installation beside heat-generating drives or power supplies. Its geometry and wear-leveling parameters match the host system, so the card integrates without changes to startup scripts or the PLC image.