Digital Input Module Sm 421; Di 32Xuc 120 V (6Es7421-1El00-0Aa0) - Siemens SIMATIC S7-400 Reference Manual

Digital modules

4.13 Digital input module SM 421; DI 32xUC 120 V (6ES7421-1EL00-0AA0)

4.13 Digital input module SM 421; DI 32xUC 120 V
(6ES7421-1EL00-0AA0)
Properties
SM 421; DI 32 x UC 120 V has the following features:
● 32 inputs, isolated
● Rated input voltage UC 120 V
● Suitable for switches and 2-wire proximity switches
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S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08