Siemens Simatic S7-300 - Page 198

Digital Modules
3-114
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal assignment and block diagram of the SM 323; DI 8/DO 8 x 24 VDC/0.5 A
Status display – green
Channel number
Backplane bus
interface
1M
2M
24V
24V
2L+
M
Figure 3-38 Module View and Block Diagram of Digital Input/Output Module SM 323;
DI 8/DO 8 x 24 VDC/0.5 A