6ES7212-1AG50-0XB0 SIMATIC S7-1200 G2: compact CPU 1212C DC/DC/DC; power supply: DC 20.4-28.8 V DC; onboard I/O: 8x DI 24 V DC; 6x DO 24 V DC; memory: program 150 KB data: 500 KB, retentivity: 20 KB