Digital modules
3.14 Digital input module SM 321; DI 16 x 120/230 VAC (6ES7321-1FH00-0AA0)
S7-300 Automation System Module data
3-40 Manual, 08/2006, A5E00105505-04
3.14 3.14 Digital input module SM 321; DI 16 x 120/230 VAC
(6ES7321-1FH00-0AA0)
Order number
6ES7321-1FH00-0AA0
Properties
Properties of SM 321, DI 16 x AC 120/230 V:
● 16 inputs, electrically isolated in groups of 4
● rated input voltage 120/230 VAC
● Suitable for switches and 2-/3-wire proximity switches (AC)
Wiring and block diagrams of SM 321; DI 16 x AC 120/230 V
0
0
0
0
1
1
1
1
① Channel number
② Status display - green
③ Backplane bus interface
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