User Manual
90 Rockwell Automation Publication 1756-UM540A-EN-P - May 2014
Chapter 4 1756-IRT8I Combined Temperature-sensing Isolated Analog Module
Figure 18 - 1756-IRT8I Module Wiring Diagram - 4-wire RTD Input
1
3
5
7
019
1112
4131
6151
8171
0291
2212
4232
6252
8272
0392
2313
33
6353
2
34
8
6
4
CJC 0
IN_0(-)/B
IN_0/RTD C
IN_1(-)/B
IN_1/RTD C
IN_2(-)/B
IN_2/RTD C
IN_3(-)/B
IMPORTANT: Remember the
following:
• If separate power sources
are used, do not exceed the
specific isolation voltage.
For more information on
module specifications, see
the 1756 ControlLogix I/O
Specifications Technical
Data, publication
1756-TD002
.
• Terminals 1, 2, 35, and 36
are not used in RTD
applications.
IN_3/RTD C
IN_4(-)/B
IN_4/RTD C
IN_5(-)/B
IN_5/RTD C
IN_6(-)/B
IN_6/RTD C
IN_7(-)/B
IN_7/RTD C
CJC 1
CJC 0
IN_0(+)/A
IN_0/RTD D
IN_1(+)/A
IN_1/RTD D
IN_2(+)/A
IN_2/RTD D
IN_3(+)/A
IN_3/RTD D
IN_4(+)/A
IN_4/RTD D
IN_5(+)/A
IN_5/RTD D
IN_6(+)/A
IN_6/RTD D
IN_7(+)/A
IN_7/RTD D
CJC1
Shield Ground
4-wire RTD