Siemens ET 200pro - Page 126

Connection
4.11 Wiring the Electronic Module using the Connection Module
ET 200pro distributed I/O system
126 Operating Instructions, 03/2013, A5E00335544-08
Pin assignment of CM IO 4 x M12 connection module and 4 AI TC High Feature electronic module
Note
Only the CM IO 4 x M12 connection module may be used for the electronic module.
Table 4- 25 Pin assignment of CM IO 4 x M12 with 4 AI TC High Feature
View of the coupler plug
Terminal
Assignment X1
1* Pt1000 resistance thermometer
measuring line M+
2
Input signal M
0
+: Channel 0
3* Pt1000 resistance thermometer
measuring line M-
4
Input signal M
0
-: Channel 0
5
Functional earth (FE)
Terminal
Assignment X2 to X4
1
Not assigned
2 Input signal M
1
+: Connector X2
Input signal M
2
+: Connector X3
Input signal M
3
+: Connector X4
3
Not assigned
4 Input signal M
0
-: Connector X2
Input signal M
1
-: Connector X3
Input signal M
3
-: Connector X4
5 Functional earth (FE)
①
Shielded copper cables
* If the M12 compensation connector is being used (see section titled 4 AI TC High Feature analog
electronic module (6ES7144-4PF00-0AB0) (Page 401
)), the Pt1000 resistance thermometer is
already integrated. If an external Pt1000 is connected, α must equal 0.003851.