Fail-Safe CPU Dimensions W x H x D: 110 x 100 x 75 mm Inputs: 14 Digital, 2 Analogue Inputs, abbreviated: 14 DI, 2 AI Operating temperature: 0...+55 °C Data memory: 125 kB Inputs/outputs, max.: 24 Operating voltage: 24 VDC Series: SIMATIC S7 Protection rating: IP20 No. of analogue inputs: 2 No. of digital inputs: 14