Backplane Controllers: PROFINET IO Device, PROFIBUS DP Slave Modules: 32 (all slots) Power supply: provided through the backplane Current consumption: Typ. ±169 mA (500 mA max) Compatible backplane units: 101-200011, 101-200022, 101-200023, 101-200024, 101-200027 Digital Inputs 8 digital inputs on 1 connector 240 mW at 24 V 3 .. 32 VDC Input detection frequency: Max. 3 ms Digital Input Connector Pins: 1 = GND, 2 ..9 = D10..D17, 10 = GND1 Wire diameter (for the screw terminals): < 1.5 mm2 Wire type: Stranded or solid core Others Head Station firmware: V1.271 and later Dimensions (LxWxH): 140 x 110 x 25 mm Operating temperature: 0 .. 60 °C Weight: 100 g