Allen-Bradley 1756-L6 Series, Reference Manual, Page: 52 / 134

52 Rockwell Automation Publication 1756-RM001I-EN-P - May 2012
Chapter 5 ControlLogix I/O Modules
Figure 24 - ControlLogix Analog Thermocouple Module Wiring
Wiring the RTD Input Module
Make sure you:
• review the considerations in Using Analog Input Modules on page 47 .
• use the correct documentation (listed in Additional Resources on page 10 )
to wire the module.
• use two sensors. RTDs cannot be wired in parallel without severely
affecting their accuracy.
Figure 25 shows how to wire the 1756-IR6I module.
Figure 25 - ControlLogix Analog RTD Module Wiring
Thermocouple A
Ch0 +
43370
Ch0 +
RTN RTN
Thermocouple B
RTD A
Ch0 A
43371
Ch0 A
RTN RTN
Ch0 B Ch0 B
RTD B