Siemens SIMATIC S7-300 Module data - Page 166

Digital Modules
3-82
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal assignment and block diagram of the SM 322; DO 8 x 48-125 VDC/1.5 A
Channel number
Status display – green
1M
48 to
125 V
1 L+
2M
48 to
125 V
2 L+
SF
1
3
5
7
9
10
Backplane bus
interface
+ 5 V
+ 5 V
11
13
15
17
19
20
SF
Fault indicator – red
Figure 3-27 Module View and Block Diagram of the SM 322; DO 8 x 48-125 VDC/1.5 A