Siemens S7-400 ユーザーズマニュアル
Digital Modules
4-56
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
4.15
Digital Input Module SM 421; DI 32
120 VUC
;
(6ES7421-1EL00-0AA0)
Characteristics
The SM 421; DI 32
120 VUC is characterized by the following features:
•
32 inputs, isolated
•
Rated input voltage 120 VAC/VDC
•
Suitable for switches and two-wire proximity switches