6ES72881SR200AA1: S7-200 SMART, CPU SR20, Standard CPU Module, Relay Output, 220 VAC Power Supply, 12 Inputs/8 Outputs

6ES72881ST200AA1: S7-200 SMART, CPU ST20, Standard CPU Module, Transistor Output, 24 VDC Power Supply, 12 Inputs/8 Outputs

6ES72881SR300AA1: S7-200 SMART, CPU SR30, Standard CPU Module, Relay Output, 220 VAC Power Supply, 18 Inputs/12 Outputs

6ES72881ST300AA1: S7-200 SMART, CPU ST30, Standard CPU Module, Transistor Output, 24 VDC Power Supply, 18 Inputs/12 Outputs

6ES72881SR400AA1: S7-200 SMART, CPU SR40, Standard CPU Module, Relay Output, 220 VAC Power Supply, 24 Inputs/16 Outputs

6ES72881ST400AA1: S7-200 SMART, CPU ST40, Standard CPU Module, Transistor Output, 24 VDC Power Supply, 24 Inputs/16 Outputs

6ES72881SR600AA1: S7-200 SMART, CPU SR60, Standard CPU Module, Relay Output, 220 VAC Power Supply, 36 Inputs/24 Outputs

6ES72881ST600AA1: S7-200 SMART, CPU ST60, Standard CPU Module, Transistor Output, 24 VDC Power Supply, 36 Inputs/24 Outputs

6ES72881CR200AA1: S7-200 SMART, CPU CR20S, Economy CPU Module, Relay Output, 220 VAC Power Supply, 12 Inputs/8 Outputs

6ES72881CR300AA1: S7-200 SMART, CPU CR30S, Economy CPU Module, Relay Output, 220 VAC Power Supply, 18 Inputs/12 Outputs

6ES72881CR400AAD: S7-200 SMART, CPU CR40, Economy CPU Module, Relay Output, 220 VAC Power Supply, 24 Inputs/16 Outputs

6ES72881CR600AAD: S7-200 SMART, CPU CR60, Economy CPU Module, Relay Output, 220 VAC Power Supply, 36 Inputs/24 Outputs