Siemens 6ES7313-6CG04-0AB0 SIMATIC S7-300, CPU 313C-2 DP Compact CPU with MPI, 16 DI/16 DO, 3 high-speed counters (30 kHz), integrated DP interface, Integr. 24 V DC power supply, 128 KB main memory, front connector (1 x 40-pin) and Micro memory card required