Siemens 6FC5357-0BB33-0AE2 is a SINUMERIK 840D/DE Numerical Control Unit (NCU) version 573.3, built around a Pentium III processor that runs at 500 MHz. The module provides NC memory of 2.5 MB and PLC memory of 96 KB (upgradable to 288 KB) and is delivered without system software memory while being PROFIBUS DP prepared. Dimensions are 50 x 316 x 207 mm and it weighs 1.05 kg, designed for use in SINUMERIK 840D/DE CNC systems. This part is discontinued by Siemens, with official lifecycle notes indicating discontinuation as of September 30, 2015.
