SIEMENS

6ES7211-0BA23-0XB0 SIMATIC S7-200, CPU 221 Compact unit, AC power supply 6 DI DC/4 DO Relay outputs, 4 KB progr./2 KB data

6ES7211-1BD30-0XB0 SIMATIC S7-1200, CPU 1211C, compact CPU, AC/DC/relay, onboard I/O: 6 DI 24 V DC; 4 DO relay 2A; 2 AI 0-10 V DC, Power supply: AC 85-264 V AC at 47-63 Hz, Program/data memory 25 KB

6ES7211-1HD30-0XB0 SIMATIC S7-1200, CPU 1211C, compact CPU, DC/DC/relay, onboard I/O: 6 DI 24 V DC; 4 DO relay 2A; 2 AI 0-10 V DC, Power supply: AC 20.4-28.8 V DC, Program/data memory 25 KB

6ES7212-1AB23-0XB0 SIMATIC S7-200, CPU 222 Compact unit, DC power supply 8 DI DC/6 DO DC 4 KB progr./2 KB data, PROFIBUS DP expandable

6ES7221-1BF30-0XB0 SIMATIC S7-1200, Digital input SM 1221, 8 DI, 24 V DC

6ES7222-1BF22-0XA0 SIMATIC S7-200, Digital output EM 222, only for S7-22X CPU, 8 DO, 24 V DC