초록 ▼

An auto-tuner for use in tuning a control element in a process control network having distributed control functions includes a first tuning element located in the field device in which the control element is operating and a second tuning element located in a different device that communicates with t

An auto-tuner for use in tuning a control element in a process control network having distributed control functions includes a first tuning element located in the field device in which the control element is operating and a second tuning element located in a different device that communicates with the first device via a communication network. The first tuning element controls the operation of the control element during the dynamic data capture phase of an auto-tuning procedure, collects data during this phase of the auto-tuning procedure and determines one or more process characteristics from the collected data. The first tuning element then communicates the determined process characteristics to the second tuning element via the communication network. The second tuning element uses a stored rule set to determine a new tuning parameter for the control element based on the process characteristics developed by the first tuning element and sends the determined tuning parameter via the communication network to the control element to thereby re-tune the control element.

대표청구항 ▼

1. An auto-tuner for use in a process control system having first and second devices communicatively coupled via a communication network and a control element located within the first device, the auto-tuner comprising:a first tuning element located in the first device including, a control element co

1. An auto-tuner for use in a process control system having first and second devices communicatively coupled via a communication network and a control element located within the first device, the auto-tuner comprising:a first tuning element located in the first device including, a control element controller adapted to be communicatively coupled to the control element in the first device and to control the operation of the control element during a tuning procedure; a data collection unit that collects data generated during the tuning procedure; and a communicator that communicates process characteristic information to the second device via the communication network; and a second tuning element that is located in the second device and that is communicatively coupled to the first tuning element through the communication network, wherein the second tuning element determines a tuning parameter for the control element from the process characteristic information.