Tescom Corporation

Jeffrey Allen Wakefield

Gordon Cameron Muir

Linda Rose Tharaldson

A diagnostic system and method for a pressure regulator in a process plant is provided. The diagnostic apparatus includes a processor operatively coupled to the pressure regulator; a memory operatively coupled to the processor; and a sensor operatively coupled to an inlet valve of the pressure regulator, an exhaust valve of the pressure regulator, and the processor. A diagnostic module is stored in the memory, and when executed by the processor, presents a diagnostic tool at a user interface.

System and method for diagnosing a field device

A method of collecting data in a field device includes receiving indications of variables for which data is collected, receiving indications of trigger events to trigger collection of data, receiving threshold values associated with each of the trigger events, monitoring the trigger events, and initiating data collection when at least one of the trigger events crosses one the threshold values associated with the corresponding trigger event. A method of tuning a PID controller in a field device includes setting a limited range for selecting a value for a control parameter of the PID controller, selecting the value of the control parameter, wherein the selected value is constrained to be within the limited range, transmitting the selected value to the field device, obtaining, from the field device, a measurement of a response of the field device to a setpoint change, and displaying the obtained response measurements to a user.

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Big Lake, MN, United States of America

Jeffrey Allen Wakefield