Siemens 6FC5357-0BA11-0AE0 CNC Control Unit 5-Axis

Siemens 6FC5357-0BA11-0AE0 SINUMERIK 840D/840DE NCU 571 is a five-axis CNC control unit that serves as the central processing unit (NCU) for SINUMERIK 840D systems, coordinating motion and PLC tasks for multi‑axis machining. This export-version module supports up to five axes/spindles and provides 128 KB of NC memory with a maximum of 64 KB PLC memory, enabling precise interpolation and real‑time control of complex tool paths. As the brains of a SINUMERIK 840D/840DE installation, the NCU 571 handles program execution, drive communications, and axis coordination to deliver synchronized, high‑precision five‑axis milling and contouring for demanding manufacturing environments.