Patent ID: 7496472

Claim:
A method for displaying, on an electronic display device coupled to computing electronics, scaled performance indicators of control applications in an environmental control system, the method comprising: receiving and storing in a memory device more than one performance indicator from a first control application, wherein the first control application includes a modulating control output to control a first device of the environmental control system; receiving and storing in the memory device more than one performance indicator from a second control application, wherein the second control application includes a staged-control output to control a second device of the environmental control system; using the computing electronics to identify a probability distribution function, wherein the probability distribution function is characteristic of a fault-free environmental control system; retrieving the performance indicators of the first and second control applications from the memory device and using the computing electronics to calculate and store probability distributions associated with the performance indicators of the first and second control applications in the memory device, wherein the calculation is based on the identified probability distribution function; and using the computing electronics to calculate a graphical representation of the probability distributions associated with the first and second control applications and to cause the display, on the electronic display device, of the graphical representation of the probability distributions on a common scale.