The MLKSD Master Link module manages all the communication buses between the CNZ32 and the peripherals (inputs, outputs and digital drives). It connects to any CNZ32 Central Unit with a FlorenZ Operating System, via a real-time Ethernet connection. Some machine parameters (dynamic axis settings, PLC permanent variables, etc) and the numerical control files (part-programs, subroutines, fixed cycles, special M, etc) reside on the MLKSD module. These data reside in a CMOS memory, constantly powered by a backup battery, which preserves the data in the event of a power failure.