SIEMENS 6FC5357-0BB35-0AA0 NCU 573.5 933MHZ 64MB 6FC5357-0BB35-0AA0 6FC5357-0BB35-0AA0 SINUMERIK 840D/DE CNC-HARDWARE NCU 573.5, 933 MHZ, 64 MB WITHOUT SYSTEM SOFTWARE MEMORY: NC 3 MB, PLC 128 KB PREPARED FOR PROFIBUS DP,