6ES7288-1ST40-0AA0 SIMATIC S7-200 SMART, CPU ST40, CPU, DC/DC/DC, onboard I/O: 24 DI 24 V DC; 16 DO 24 V DC; power supply: DC 20.4-28.8V DC, program/data memory 40 KB
SIMATIC S7-200 SMART, CPU SR40, CPU, AC/DC/relay, onboard I/O: 24 DI 24 V DC; 16 DQ relay 2 A; power supply: AC 85 - 264 V AC at 47-63 Hz program/data memory 40 KB web server support
6ES7288-1SR30-0AA0 SIMATIC S7-200 SMART, CPU SR30, standard CPU, AC/DC/relay, onboard I/O: 18 DI 24 V DC; 12 DO relay 2 A; power supply: AC 85-264 V AC at 47-63 Hz, program/data memory 30 KB
6ES7272-1BA10-0YA1 SIMATIC S7,TD 100C Text Display for S7-200, 4-line, with installation accessories, Configuration with STEP 7 Micro/WIN without ATEX approval