SIMATIC S7-300, CPU 313C, Compact CPU with MPI,

24 DI/16 DO, 4 AI, 2 AO, 1 Pt100, 3 high-speed counters (30 kHz),

Integr. power supply 24 V DC,

work memory 64 KB, Front connector (2x 40-pole)

 and Micro Memory Card required