Digital Input Module Sm; Di 8 X 120/230 Vac Isol (6Es7321-1Ff10-0Aa0); Module View And Block Diagram Of The Sm 321; Di 8 X 120/230 Vac Isol - Siemens SIMATIC S7-300 Reference Manual

Digital Modules
3.15

Digital Input Module SM 321;

DI 8 x 120/230 VAC ISOL (6ES7321-1FF10-0AA0)

Order number
6ES7321-1FF10-0AA0
Characteristics
The digital input module SM 321; DI 8 x 120/230 VAC ISOL has the following
distinguishing characteristics:
• 8 outputs, isolated in groups of 1
• 120/230 VAC rated input voltage
• Suitable for switches and two / three / four-wire AC proximity switches
Terminal assignment and block diagram of the SM 321; DI 8 x 120/230 VAC ISOL
Channel
number
Status display – green
Figure 3-15

Module View and Block Diagram of the SM 321; DI 8 x 120/230 VAC ISOL

3-44
M
M
Backplane bus
interface
M
1
4
7
10
11
14
17
20
21
24
27
30
31
34
37
40
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03