本文重点讨论了设计团队在设计状态时所面临的挑战- 最先进的水处理厂。CDM，Inc.的设计团队，包括工厂运营和 工程人员，围绕地下水补给系统（GWRS）的两个现场总线设计 南加州奥兰治县水区的设计项目。基金会现场总线 大多数模拟过程控制选用DeviceNet，电机控制和控制选用DeviceNet 各种离散信号应用。本文详细介绍了GWRS项目 通过对现场总线技术的概述，以及现场总线如何被纳入 设计包括表格，数字。

This paper focuses on the challenges faced by the design team in their approach to designing a state- of-the-art water treatment plant. CDM, Inc.'s design team, which included plant operations and plant engineering staff, designed around two fieldbuses for its Groundwater Replenishment System (GWRS) design project for the Orange County Water District in Southern California. Foundation Fieldbus was selected for the majority of analog process control, and DeviceNet was selected for motor control and miscellaneous discrete signal applications. The paper details the GWRS project followed by an overview of fieldbus technology and a summary of how the fieldbuses were incorporated into the design. Includes table, figures.