Siemens ET 200pro - Page 124

Connection
4.11 Wiring the Electronic Module using the Connection Module
ET 200pro distributed I/O system
124 Operating Instructions, 03/2013, A5E00335544-08
Pin assignment of CM IO 4 x M12 connection module and 4 AI RTD High Feature electronic module
Note
Only the CM IO 4 x M12 connection module may be used for the electronic module.
Table 4- 24 Pin assignment of CM IO 4 x M12 connection module with 4 AI RTD High Feature
View of the coupler plug
Terminal
Assignment X1 to X4
4-wire
1 Constant current line I
C0
+: Connector 1
Constant current line I
C1
+: Connector 2
Constant current line I
C2
+: Connector 3
Constant current line I
C3
+: Connector 4
2 Measuring line M
0
+: Connector X1
Measuring line M
1
+: Connector X2
Measuring line M
2
+: Connector X3
Measuring line M
3
+: Connector X4
3 Constant current line I
C0
-: Connector 1
Constant current line I
C1
-: Connector 2
Constant current line I
C2
-: Connector 3
Constant current line I
C3
-: Connector 4
4 Measuring line M
0
-: Connector X1
Measuring line M
1
-: Connector X2
Measuring line M
2
-: Connector X3
Measuring line M
3
-: Connector X4
5 Functional earth (FE)
3-wire
1 Constant current line I
C0
+: Connector 1
Constant current line I
C1
+: Connector 2
Constant current line I
C2
+: Connector 3
Constant current line I
C3
+: Connector 4
2 Measuring line M
0
+: Connector X1
Measuring line M
1
+: Connector X2
Measuring line M
2
+: Connector X3
Measuring line M
3
+: Connector X4
3 Measuring line M
0
-: Connector X1
Measuring line M
1
-: Connector X2
Measuring line M
2
-: Connector X3
Measuring line M
3
-: Connector X4
4
Not assigned
5
Functional earth (FE)