Siemens SIMATIC ET 200X - Page 233

Technical Specifications
7-45
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Basic circuit diagram
The basic circuit diagram of the expansion module is show below.
Backplane bus
interface
Socket connections
(see Table 7-22)
1L+
1M
Supply voltage for
electronic components and
sensors via backplane bus
So. X1
So. X8So. X3
So. X2
Short-circuit
protection
Figure 7-10 Basic circuit diagram of expansion module EM 141 DI 8 x DC 24V
(6ES7 141-1BF41-0XA0)