SIMATIC S7-1200, CPU 1212C, compact CPU, DC/DC/DC, onboard I/O: 8 DI 24 V DC: 6 DO 24 V DC: 2 AI 0-10 V DC, Power supply: DC 20.4-28.8V DC, Program/data memory 75 KB SIMATIC S7-1200 Basic Controller - Flexible thanks to wide variety of communication option