
Digital modules
3.7 Digital input module SM 321; DI 32 x DC 24 V; (6ES7321-1BL00-0AA0)
S7-300 Module data
Manual, 02/2013, A5E00105505-08
73
Wiring and block diagrams of SM 321; DI 32 x DC 24 V
9
0
0
9
0
0
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).
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