Product Description:

The CML65.1-SP-604-NA-NNN-NW is a Control Main Unit produced by Bosch Rexroth Indramat for the CML IndraControl Hardware series 65. This electronic assembly provides the primary computing resource inside an IndraControl automation rack. Its purpose is to execute user PLC code, manage motion sequences, and maintain deterministic communication among servo drives, operator panels, and distributed I/O stations used on factory lines and processing machinery. It also supports the programming environment used for IndraLogic projects and acts as the master that initializes peripherals when the machine powers on.

Processing is handled by an Intel Celeron M processor operating at 1.0 GHz, a frequency suitable for sub-millisecond task scheduling on medium-size motion systems. The board carries 256 MB of base DRAM permanently installed, and an expansion stack brings the configured total to 512 MB so larger visualization modules and database files can run without paging. For high-speed variable access, the design reserves 8 MB of battery-backed SRAM, which helps retentive data survive a controlled shutdown. This memory arrangement allows simultaneous execution of IEC-61131 logic, communication stacks, and operating system services while keeping scan times predictable.

The unit connects to plant networks through the integrated PROFIBUS master interface, enabling cyclic exchange of process data with intelligent drives and remote terminals. All electronics are enclosed in an Inline housing that plugs directly into adjacent I/O slices, which helps minimize wiring and conserve panel space. Cooling relies on passive convection, and the unit operates without a fan. There is no NvRAM on this model, so long-term recipes should be stored externally. The CPU uses design variant 1, which is the standard performance level for this hardware family.