Module View And Block Diagram Of The Sm - Siemens SIMATIC S7-300 Reference Manual

Terminal assignment and block diagram of the SM 322; DO 8 x 120/230 VAC/2 A
Figure 3-28 Module View and Block Diagram of the SM 322; DO 8 x 120/230 VAC/2 A
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
5 V
SF
SF
M
M
Backplane bus
interface
5 V
M
M
Channel number
Status display – green
Fault indicator – red
*
2N
*
* Zero cross inhibit voltage triac
Digital Modules
1L
1N
2L
3-85