Siemens SIMATIC S7-300 Module data - Module View and Block Diagram of the Digital Input Module SM 321; DI 32 X 24 VDC; Terminal Assignment of the SM 321; DI 32 X 24 VDC

Digital Modules
3-14
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal assignment and block diagram of the SM 321; DI 32 x 24 VDC
Channel
number
Status display – green
Backplane bus
interface
24V
24V
Figure 3-1 Module View and Block Diagram of the Digital Input Module SM 321; DI 32 x 24 VDC
Terminal assignment of the SM 321; DI 32 x 24 VDC
The following figure shows the assignment of the channels to the addresses.
Input byte x
Input byte (x+1)
Input byte (x+2)
Input byte (x+3)
Figure 3-2 Terminal assignment of the SM 321; DI 32 x 24 VDC