DIGITAL ELECTRONIC PROCESS CONTROLLER

摘要

A digital electronic process controller unit (10) for controlling fluid applications is disclosed. The digital electronic process controller unit (10) generally receives a control set point value from a first external device. The control set point value corresponds to a characteristic associated with a valve (22). A signal having a characteristic associated with the valve (22) is sensed by the unit (10). The set point value and the sensed signal are processed in a microcontroller (12) utilizing an algorithm (68) to generate a signal. The associated valve (22) may be adjusted based on the signal. In another embodiment, the microcontroller (12) controls an external device that is logically coupled to the microcontroller (12) based upon one or more of the parameters being monitored and/or controlled by the microcontroller (12). In another embodiment, the microcontroller (12) may receive one or more inputs from an external device and use the inputs to control one or more operations of the process controller unit (10).