Digital modules 3.9 Digital input module SM 321; DI 16 x DC 24 V; (6ES7321-1BH02-0AA0) S7-300 Module data 68 Manual, 08/2009, A5E00105505-06 Wiring and block diagrams of SM 321; DI 16 x DC 24 V 090 ① Channel number ② Status display - green ③ Backplane bus interface Technical specifications of SM 321; DI 16 x DC 24 V Technical specifications Dimensions and weight Dimensions W x H x D (mm) 40 x 125 x 117 Weight ca. 200 g Module-specific data Supports isochronous mode no Number of inputs 16 Cable length unshielded shielded max. 600 m max. 1000 m Digital modules 3.7 Digital input module SM 321; DI 32 x DC 24 V; (6ES7321-1BL00-0AA0) S7-300 Module data Manual, 08/2009, A5E00105505-06 63 Wiring and block diagrams of SM 321; DI 32 x DC 24 V 9009 00 ① Channel number ② Status display - green ③ Backplane bus interface Terminal assignment of SM 321; DI 32 x DC 24 V The figure below shows how channels are assigned to addresses (input byte x up to input byte x+3). [[[[ Digital modules 3.37 Programmable digital IO module SM 327; DI 8/DO 8 x DC 24 V/0.5 A (6ES7327-1BH00-0AB0) S7-300 Module data Manual, 08/2009, A5E00105505-06 189 Wiring and block diagram of SM 327; DI 8/DO 8 x DC 24 V/0.5 A, programmable 0/0/00 ① Channel number ② Status display - ...