Basic Circuit Diagram Of Expansion Module Em 144 Ai 2 X Rtd - Siemens SIMATIC ET 200X Manual

Basic circuit diagram
The basic circuit diagram of the expansion module is shown below.
Supply voltage for electronic components
and sensors via backplane bus
1M
Figure 7-33
Covering up unused connections
You must seal off any connections which are not required with M12 screw caps, in
order to ensure that the degree of protection (IP 65, IP 66 or IP 67) is achieved.
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
1L+
24 V
5 V
ADC
Backplane bus
interface
SF
Socket connections (see Table 7-65)

Basic circuit diagram of expansion module EM 144 AI 2 x RTD

Technical Specifications
1
2
So. X1
4
3
1
2
So. X2
4
3
7-121