Digital modules
3.7 Digital output module SM 321; DI 32 x AC 120 V; (6ES7321-1EL00-0AA0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
3-15
Wiring and block diagrams SM 321; DI 32 x AC 120 V
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① Channel number
② Status display - green
③ Backplane bus interface
Terminal assignment
The figure below shows the channel addressing (input byte x up to input byte x +3).
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