Rockwell Automation Publication 2080-UM004C-EN-E - March 2015 13
Install and Wire Your Module Chapter 2
Direct sensor wiring
Wiring Considerations and
Applications for 2080-RTD2
Two-wire and Three-Wire Wiring
Wire the RTD Sensors
In an RTD sensor, the sensing element is always connected between two wires of
different colors. Wires of the same color are shorted and form the compensation
leads. Measuring resistance between these wires confirms the position of sensing
element and compensation elements. Compensation elements will always show
0ohms.
ATTENTION: Direct wiring is the preferred method of wiring for
thermocouples.
2080-TC2
1 2 3 4 5 6
1 2 3 4 5 6
Red
Blue
Green
Red
Blue
Process
temperature
measurement
Shielded/sheathed thermocouple sensor
45790
+
-
Cable tray/conduit
1
23
1
23
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