S7-1200 expansion module with 16 digital inputs 24VDC type outlet / source. Catalog number: 6ES7221-1BH30-0XB0. SpecificationSupply voltage:Permissible range, lower limit (DC): 20.4 VPermissible range, upper limit (DC): 28.8 VInput current from backplane bus 5VDC: 130 mAPower loss: 1.5WNumber of digital inputs: 16 in groups of 4Output voltage (Power supply to the transmitters): YesInput voltage:Rated value (DC): 24 VFor signal "0": 5 VDC at 1 mAF..
S7-1200 expansion module with 8 digital inputs 24VDC type outlet / source. Catalog number: 6ES7221-1BF30-0XB0. SpecificationSupply voltage:Permissible range, lower limit (DC): 20.4 VPermissible range, upper limit (DC): 28.8 VInput current from backplane bus 5VDC: 105 mAPower loss: 1.5WNumber of digital inputs: 8 in groups of 2Output voltage (Power supply to the transmitters): YesInput voltage:Rated value (DC): 24 VFor signal "0": 5 VDC at 1 mAFor..