Siemens ET 200S Manual page 281

11.2 2DI 24 VDC Standard Digital Electronic Module
(6ES7 131-4BB00-0AA0)
Order Number
6ES7 131-4BB00-0AA0
Features
S Digital electronic module with two inputs
S Rated input voltage 24 VDC
S Suitable for switches and proximity switches (BEROs)
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Digital Electronic Modules
11-5