Product Description:

Bosch Rexroth Indramat's CML65.1-NP-500-NA-NNNN-NW is a modular Control Main Unit belonging to the CML IndraControl Hardware series. As the central processor in a distributed automation rack, it executes motion, logic, and I/O coordination tasks for machine tools, packaging lines, and material-handling cells. The unit functions as the primary decision layer between field devices and higher-level plant networks, which reduces the real-time processing load on supervisory PCs. Its small width lets it fit beside drive controllers without increasing cabinet depth.

Inside the controller, an Intel Celeron M processor rated at 1.0 GHz supplies the computing bandwidth needed for deterministic control loops. The CPU uses design variant 1, which indicates the standard instruction set and cache organization for this hardware generation. System memory consists of 256 MB of DRAM, which is sufficient for motion libraries, PLC code, and temporary data buffers, while no SRAM is installed for fast state data retention. The platform operates without a fan, so passive cooling removes moving parts and supports cabinet installation close to sensitive sensors where airflow may be restricted.

Field communication is handled through the integrated PROFIBUS interface, allowing cyclic data exchange with drives, HMIs, and distributed I/O at the bus baud rates supported by the IndraControl platform. The controller’s Inline housing lets it mount directly on rail segments that carry both power and backplane signals, which helps reduce wiring in compact machines. Because there is no NVRAM reserved for retentive data, any variables that must survive power-down events need to be written to external storage or recreated at startup. Within the series code 65, the hardware footprint remains unchanged across standard configurations.