Control loop monitoring report descriptions

rCAAM calculates performance metrics based on control loop parameters and attributes. You set the interval and rCAAM calculates and reports:

Stability
How well a control loop tracks the setpoint

Measurement Oscillation
The number of times the process variable crosses the setpoint

Standard Error
A unit-independent measurement of error

Maximum Error
The maximum deviation of the process variable from the setpoint

Average Absolute Error
The average deviation of the process variable from setpoint

Standard Deviation of Measured Value
The standard deviation of the process variable

Setpoint Changes
The number of times the setpoint has been changed

Average Controller Output
The average value of a controller’s output

Output Deviation
The standard deviation of the control output

Time Out of Range
The total time control output is outside the desired value range

Time Below Low Limit
The number of minutes controller output is below the minimum desired value

See sample reports in the rCAAM brochure
(PDF 1MB).

Time Above High Limit
The number of minutes controller output is above the maximum desired value

Time On Control
The percentage of time that a controller is in the desired mode

Demerit Count
A measure of a loop’s performance based on a weighting of the above statistics