原文：
APACS Architecture
APACS．which srands for Advanced Process Automation and Control System，incorporates unique architectural structures that offer unparalleled flexibility．These structures have been developed to meet short—term needs in the most cost—effective manner and look far ahead to the protection of user investment，while maintaining architectural simplicity.
APACS Drovides a complete control system：the controller and a choice of PC—or workstation-based operator interfaces．The controller consists of a series of plug—in modules，each dedicated to a particular task，such as control strategy execution，input／output functtons 0r communication functions． Operator stations can consist of one or more PCs running one of
several operator interface software packages or one or more workstations runmng the APACS Process Supervisor software．