Field control devices having pre-defined error-states and related methods

摘要

Control apparatus having pre-defined error-states and related methods are described. An example method of controlling a field control device described herein includes receiving, via a controller coupled to the fluid control device, a communication from a control system remotely located from the controller to operate the field control device during a non-error condition, detecting whether an error condition has occurred, and operating the field control device based on a pre-determined error-state instruction stored in the controller when the error condition is detected.

主权项

1. A method of controlling a field control device, the method comprising:
receiving, via a controller coupled to the field control device, a communication from a control system remotely located from the controller to operate the field control device during a non-error condition; detecting an error condition while the field control device is communicatively coupled to and receives the communication from the control system; and overriding the communication between the control system and the controller to operate the field control device based on a pre-defined error-state instruction stored in the controller when the error condition is detected, wherein overriding the communication to operate the field control device based on the pre-defined error-state instruction comprises moving the field control device to a first position for a first amount of time and subsequently moving the field control device to a second position for a second amount of time, the first position being different than the second position.