Digital Input Module Sm 321; Di 32 X 120 Vac; (6Es7321-1El00-0Aa0); Moduleview And Block Diagram Of Digital Input Module Sm 321; Di 32 X 20 Vac - Siemens SIMATIC S7-300 Reference Manual

Digital Modules
3.6 Digital Input Module SM 321; DI 32 x 120 VAC;
(6ES7321-1EL00-0AA0)
Order number
6ES7321-1EL00-0AA0
Characteristics
The SM 321; DI 32 x 20 VAC features the following characteristics:
• 32 inputs, isolated in groups of 8
• 120 VAC rated input voltage
• Suitable for switches and two / three-wire AC proximity switches
Terminal assignment and block diagram of the SM 321; DI 32 x 120 VAC
Channel
number
Status display - green
Figure 3-3

ModuleView and Block Diagram of Digital Input Module SM 321; DI 32 x 20 VAC

3-16
1 L
1 N
L
2
2 N
backplane
bus
IM
Programmable Logic Controllers S7-300 Module Data
3 L
3 N
4 L
4 N
A5E00105505-03