Siemens SIMATIC ET 200X - Basic Circuit Diagram of the BM 141 DI 8 X DC 24 V Basic Module

Technical Specifications
7-4
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Basic circuit diagram
The basic circuit diagram of the basic module is shown below.
Connector assembly
PROFIBUS
address
PROFIBUS-D
P connection
A
B
Electrical
isolation
Electronic
components
Internal power
supply
ON BF
1L+ 1M
AB
2L+
2M
Backplane bus
interface
1L+
24 VDC
Load voltage
monitor
Socket connections
(see Table 7-1)
SF
So. X1
So. X4So. X3
So. X2
Supply voltage
Electronic components/ sensors
Load voltage
X01
X02
X03
Short-circuit
protection
Figure 7-1 Basic circuit diagram of the BM 141 DI 8 x DC 24V basic module