CPC G05B 15/02 (2013.01) [G06F 8/65 (2013.01)] | 20 Claims |
1. A controller for building equipment in a building management system, the controller comprising a processing circuit configured to:
receive a field signal from the building equipment on an input port of the controller;
determine a type of the field signal, including generate a first and second output voltage based on the field signal, wherein the first output voltage is proportional to a voltage drop across a first resistor of the controller, and the second output voltage is proportional to a voltage drop across a second resistor of the controller, wherein the first resistor and the second resistor are distinct from each other;
compare the first output voltage and the second output voltage; and
update a control logic comprising instructions for reading the field signal by tagging within the control logic the input port with the determined type of the field signal.
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