Siemens SIMATIC S7-300 Module data - Digital Input Module SM 321; DI 16 X DC 24 V; Source Input; (6 ES7321-1 BH50-0 AA0); Module View and Block Diagram of Digital Input Module SM 321; DI 16 X 24 VDC (Source Input)

Digital Modules
3-34
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
3.10 Digital Input Module SM 321; DI 16 x DC 24 V; Source
Input; (6ES7321-1BH50-0AA0)
Order number
6ES7321-1BH50-0AA0
Characteristics
The SM 321; DI 16 x 24 VDC (source input) has the following salient features:
• 16 inputs, source input, isolated in groups of 16
• 24 VDC rated input voltage
• Suitable for switches and two / three / four-wire BEROs (proximity switches).
Terminal assignment and block diagram of the SM 321; DI 16 x 24 VDC
Channel number
Status display – green
Backplane bus
interface
L +
Figure 3-10 Module View and Block Diagram of Digital Input Module SM 321; DI 16 x 24 VDC
(Source Input)