Article Number (Market Facing Number)</b>: 6ES72141AG400XB0 | 6ES72141AG400XB0 Product Description:</b> SIMATIC S7-1200, CPU 1214C, COMPACT CPU, DC/DC/DC, ONBOARD I/O: 14 DI 24V DC; 10 DO 24 V DC; 2 AI 0 - 10V DC, POWER SUPPLY: DC 20.4 - 28.8 V DC, PROGRAM/DATA MEMORY: 100 KB NOTE: &#33&#33V13 SP1 PORTAL SOFTWARE IS REQUIRED TO PROGRAM&#33&#33