Patent ID: 8209039
Filing Date: 2012-06-26
Classification: G05B

Abstract:
1. A method for assessing accuracy of process condition calculations in a system for controlling an industrial process, the method comprising: generating, at an industrial process control workstation, a process condition reference equation signal representing a reference process condition of a process fluid using a process condition reference equation and process control inputs including simulated process variables; generating, at an industrial process control workstation, a process condition approximation equation that approximates the reference equation using the process control inputs; wherein the process condition approximation equation mimics a transmitter equation evaluated on an industrial process transmitter located remotely from the industrial process control workstation; generating approximation equation coefficients for use by the process condition approximation equation; generating, at the industrial process workstation, a process condition approximation equation signal representing an approximated process condition of the process fluid based on the process condition approximation equation, the process control inputs and the approximation equation coefficients; and comparing the process condition approximation equation signal to the process condition reference equation signal to generate an accuracy output signal that is used to adjust the system for controlling an industrial process.