6ES7288-1ST20-0AA0 SIEMENS SIMATIC S7-200 SMART, CPU ST20, standard CPU, DC/DC/DC

SIMATIC S7-200 SMART, CPU ST20, standard CPU, DC/DC/DC, onboard I/O: 12 DI 24 V DC; 8 DO 24 V DC; power supply: DC 20.4-28.8V DC, program/data memory 20 KB