Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 150

• Permitted common-mode voltage AC 10V
• Prioritized startup
• Media redundancy
NOTE
During startup
As long as no parameters are assigned for the I/O device, the I/O device supplies the pro­
cess values 0x7FFF.
Pin assignment
The tables below show the pin assignment for the 8 AI 4 U/I + 4 RTD/TC 8×M12 I/O device.
Pin
Socket X1
(Channel 0)
1
2
M +
0
3
4
M -
0
5
Pin
Socket X2
(Channel 4)
4-conductor
1
I +
C4
2
M +
4
3
I -
C4
4
M -
4
5
3-conductor
1
I +
C4
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
Assignment for U/I
Socket X3
(Channel 1)
24 V sensor supply 1U (derived from 1L+ non-switched)
S
Input signal
M +
1
Sensor supply ground 1M
Input signal
M -
1
Functional earth FE
Assignment for RTD
Socket X4
(Channel 5)
Constant current line
I +
C5
Measurement cable
M +
5
Constant current line
I -
C5
Measurement cable
M -
5
Functional earth FE
Constant current line
I +
C5
I/O device analog input/analog output
PP
Socket X5 Socket X7
(Channel 2) (Channel 3)
M +
2
M -
2
Socket X6 Socket X8
(Channel 6) (Channel 7)
I +
C6
M +
6
I -
C6
M -
6
I +
C6
10.1 I/O device analog input
View of socket
(front view)
M +
3
M -
3
View of socket
(front view)
I +
C7
M +
7
I -
C7
M -
7
I +
C7
151