Product Description:

The CX2900-0034 is a removable mass storage module supplied by Beckhoff for the CX Embedded PC Systems series. It functions as a solid-state repository for operating systems, machine parameters, and event logs within distributed control architectures, so the controller can keep its runtime environment and persistent data in one device. By slotting directly into the embedded PC, the card allows the software image to be replaced without disturbing peripheral wiring. This supports recovery after data corruption or storage wear and keeps the control hardware in service with minimal disassembly.

Built to an Industrial grade, the card withstands vibration and continuous operation typical of cabinet-mounted controllers, where storage media must remain stable during long duty cycles. The media type is a CFast Card, so it uses the 7-pin data and 17-pin power layout accepted by the CX1900 CFast interface boards. Communication with the CPU occurs over a SATA channel, providing deterministic throughput that matches the real-time requirements of PLC runtimes and routine file access. The flash array delivers a 32 GB storage capacity, giving room for TwinCAT projects, historical trend archives, and system restore partitions in one device. Because the memory is Non-Volatile, power cycling or an emergency stop does not erase stored data.

The controller environment can reach panel temperatures well above typical office conditions, so the storage module is rated for ambient limits up to +85 °C. Data retention is handled by SLC Flash, whose single-level cell architecture offers lower bit-error rates than multi-level alternatives and supports an Increased write-cycle grade for frequent recipe updates and repeated logging activity. This thermal ceiling suits fanless CX CPU designs that dissipate heat passively yet still require reliable file access during continuous operation. The card uses a Push/Push eject mechanism for tool-free removal while helping prevent accidental release during vibration.