Siemens SIMATIC ET 200eco PN, Operating Instructions Manual

Page: 51 / 278

Pin Assignment of X2, X4, X6, X8 (for RTD) View of the cable connector
(wiring side)
3-conductor
1 Constant current line positive I
Cn
+
2 Measurement cable positive M
n
+
3 Measurement cable negative M
n
- and constant
current line negative I
Cn
-
5 Functional earth FE
;;;;
2-conductor
1 Measurement cable positive M
n
+ and constant
current line positive I
Cn
+
3 Measurement cable negative M
n
- and constant
current line negative I
Cn
-
5 Functional earth FE
;;;;
①
4- or 5-core shielded copper cable
②
3-, 4-, or 5-core shielded copper cable
Pin Assignment X2, X4, X6, X8
(for thermocouples and ±80 mV) View of the cable connector
(wiring side)
1 Not used
2 Connector X2: Input signal M
4
+
Connector X4: Input signal M
5
+
Connector X6: Input signal M
6
+
Connector X8: Input signal M
7
+
3 Not used
52
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
Wiring
3.6 Pin assignment of connectors