Siemens S7-200 Smart ST60 CPU, Model Name/Number: 6ES7288- ...SIMATIC S7-200 SMART PLC is designed to suit the needs of developing markets that have higher pressures of price and demands onspare part *** SIMATIC S7-200 SMART, CPU ST60, CPU, DC/DC/DC, onboard I/O: 36 DI 24 V DC; 24 DO 24 V DC; power supply: DC 20.4-28.8V DC, program/data memory Meraaj automation