Rockwell Automation 1771-IR , D17716.5.76 RTD INPUT MODULE - Manual (Page 62)

2 and 4-Wire Sensors
Appendix E
EĆ3
Figure E.3
Connecting a 4-Wire Sensor to the Field Wiring Arm
18
16
14
12
10
8
6
4
2
C
B
A
C
B
A
C
B
A
C
B
A
C
B
A
C
B
A
RTD
Ground
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Terminal
Identification
Chassis
Leave 1 lead open
Single lead connects to terminal A
12935-I
Note: In this illustration:
Terminal A is the 1mA excitation sourcing current
Terminal B is the lead compensation sense input
Terminal C is common