本文将研究如何使用面向对象编程方法开发污水处理厂控制系统逻辑。这种检查将用于确定是否获得了实际的好处，或者面向对象编程方法是否只是流行语。本文概述了面向对象软件及其预期的好处。通过对该方法实际实施的案例研究，展示了大型水处理厂控制系统控制逻辑的开发和实施。介绍了开发过程中使用的步骤，包括“自上而下、自下而上”开发方法的概念。该方法包括检查工艺设计师的控制叙述- -“顶部”——以及识别常见设备控制对象的“底部”。识别出的对象是原型，并经过测试以验证所需的功能。然后，这些对象用于开发控制系统逻辑，以实现工艺设计师的控制叙述。将使用面向对象方法的结果与使用非面向对象方法实现类似控制叙述的结果进行比较。讨论了开发、调试和启动两个电厂控制系统所需的时间，以及每种方法的故障排除、维护和修改逻辑的容易程度。本文的结论是确定是否通过使用对象来实现实际利益- 处理厂控制系统逻辑开发中的面向对象编程方法，或者如果这种方法只是流行语。包括数字。

This paper will examine the use of an object-oriented programming methodology to develop treatment plant control system logic. This examination will be used to determine if actual benefits are obtained or if object-oriented programming methodologies are just buzzwords. An overview of object-oriented software and its expected benefits is presented. A case study of an actual implementation of this methodology is examined to show the development and implementation of control logic for a large water treatment plant control system. The steps used during the development process are presented, including the concept of a "topdown, bottom up" development methodology. This methodology consists of examining the process designer's control narratives--the "top"--and identifying the common equipment control objects--the "bottom". The identified objects are prototyped and tested to verify the desired functionality. These objects are then used to develop the control system logic thatimplements the process designer's control narratives. The results of using an object-oriented methodology are compared to implementing similar control narratives using a non-object-oriented methodology. The time required to develop, debug, and start up the two plant control systems are discussed as well as the ease of troubleshooting, maintaining, and modifying the logic for each methodology. This paper concludes with a determination of whether actual benefits are realized by using an object-oriented programming methodology in the development of treatment plant control system logic or if this methodology is just buzzwords. Includes figure.