| 摘要 |
<p>A multi-purpose controller (1) for variables (Vo) which closely controls such variables (Vc) to set point (Sc) by making sequential corrections to the level of input (72) to the system (1) of the variable (V) based on: system response time (SRT), relationship of controller output (74) to the variable (Vc), deviation of the variable (Ec) from set point (Sc), and change in system load as determined by change in error (Ec) and change in system input (72). The controller (1) has a self tuning capability and can provide generation of the set point (Sc) according to a set of variable parameters (88). It can be configured as a stand alone controller (1), as an intelligent Input/Output device (282) for another intelligent device (284), or be resident in another intelligent device, such as, a programmable controller (284), computer (284) or other microprocessor based device (284).</p> |
