Issue
What are the correct settings for the i2 controller input reference resistors for different input types?
Environment
i2 Controllers
Cause
What are the correct settings for the i2 controller input reference resistors for different input types?
Resolution
See the section starting on page 71 of the i2 Controller Technical Reference.
As a general rule, the reference resistor switch is ON for 10K thermistors, contact closures (including supervised) and counters; it is OFF for voltage inputs (which includes 0-20mA and 4-20mA current inputs since the use of the external resistor makes the input signal a voltage).
