Siemens Simatic S7-300

Digital modules
3.11 Digital input module SM 321; DI 16 x DC 24 V; source reading; (6ES7321-1BH50-0AA0)
S7-300 Automation System Module data
3-34 Manual, 08/2006, A5E00105505-04
3.11 3.11 Digital input module SM 321; DI 16 x DC 24 V; source reading;
(6ES7321-1BH50-0AA0)
Order number
6ES7321-1BH50-0AA0
Properties
Properties of SM 321; DI 16 x DC 24 V; source input:
● 16 inputs, source input, electrically isolated in groups of 16
● Rated input voltage 24 VDC
● suitable for switches and 2- /3-/4-wire proximity switches (BEROs)
Wiring and block diagrams of SM 321; DI 16 x DC 24 V
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① Channel number
② Status display - green
③ Backplane bus interface