Siemens SIMATIC S7-200 - Circuit Schematic of the RTD Module

S7-200 Specifications
A-80
S7-200 Programmable Controller System Manual
A5E00066097-02
Multiplexer
A+*
A-
b+
b-
12
11
10
9
8
7
6
5
4
3
2
1
3
Multiplexer
2
M
24V
M
L+
1
Internal Supply
Isolation
Configuration
Switches
SF
24V
Micro-controller
and backplane
bus interface
4
5
6
B+
B-
a+
a-
Power ConnectorSignal Connector
7
*A and B refer to sense; a and b refer to source.
Figure A-38 Circuit Schematic of the RTD Module