Product Description:

The CML25.1-3N-400-NN-NNC1-NW is a control main unit produced by Bosch Rexroth Indramat within the CML IndraControl Hardware series. As a modular controller, it coordinates motion, I/O, and communication tasks for decentralized automation cells and links factory networks to servo drives and sensors. By hosting the operating system and user logic, the device forms the computational core of an IndraMotion system and supports deterministic program execution with real-time fieldbus exchange. The unit is typically mounted on DIN rails inside switch cabinets, where it supervises cycle sequences, monitors faults, and sends commands to subordinate devices.

The unit’s processor is a Renesas SH 7785 that operates at a core frequency of 576 MHz, providing the computing throughput required for multitasking PLC operations and motion-control interpolation. A base memory of 128 MB DRAM is soldered on the board, and this volatile space stores the runtime kernel, task stacks, and temporary buffers needed for fast data access. Communication with drives and remote modules occurs through the real-time Ethernet interface specified as SERCOS III, which supports deterministic data exchange for coordinated automation functions. Thermal management is simplified because the hardware is supplied without a fan, so no moving parts are added to the cooling arrangement.

The physical construction follows an Inline housing concept, permitting adjacent expansion modules to slide together on the same rail and share power and bus connectors. Factory wiring is simplified by the presence of a pre-fitted plug identified as with a connecting plug, which removes the need for a separate terminal block at that connection point. This controller belongs to hardware level 25, placing it within the same platform generation as related units in the series. Internally, it uses CPU design variant 1, which is the baseline configuration and still supports cold starts and data retention through flash storage.