Siemens 6FC5357-0BB35-0AB0 is a SINUMERIK 840D/DE CNC hardware NCU 573.5B module featuring a 1.4 GHz processor and 128 MB of memory (without system software). The unit provides NC memory of 3 MB and PLC memory of 128 KB and is prepared for PROFIBUS DP, designed to integrate with SINUMERIK 840D/DE systems as a spare part. As the CNC control processor for demanding multi‑axis applications, this NCU enables complex trajectory calculations for milling, turning, and other high‑precision tasks, and is intended as a replacement component in existing SINUMERIK installations.
