Siemens Simatic S7-300 - DO 16 X Rel. 120;230 VAC

Digital Modules
3-94
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal assignment and block diagram of the SM 322;
DO 16 x Rel. 120/230 VAC
Channel number
Status display – green
L +
N
M
M
Backplane bus
interface
N
M
24 V
Figure 3-30 Module View and Block Diagram of SM 322; DO 16 x Rel. 120/230 VAC